Solar Breakthroughs: Record Growth and Innovations Unveiled

Solar Breakthroughs: Record Growth and Innovations Unveiled

Solar innovation, manufacturing, and adoption are growing faster than ever. Over 30 gigawatts of PV were added in 2023, setting a record in residential and utility segments. The recent CleanStart Meetup featured this whirlwind of innovation, focusing on the latest advancements in solar technology. The event featured key speakers Kevin Logue, Commercial EPC Sales Manager at Capital Valley Electric, and Diana DiGangi, a reporter at Utility Dive, who shared insights into the dynamic world of solar energy solutions.

Cutting-Edge Solar Technologies

The discussions covered a wide array of topics, from inverters, racking systems, and Battery Energy Storage Systems (BESS) to novel concepts like Floating Photovoltaics (PV) and Agrovoltaics. Kevin Logue emphasized the evolution of racking systems designed to lower costs and improve efficiency. Innovations such as Floating PV and vertical solar installations are gaining traction, offering versatile applications without compromising valuable land resources.

One of the standout ideas was the concept of Solar Canvases, designed to drape over canals, simultaneously generating energy and reducing water evaporation. Additionally, the advent of Integrated Solar Glass and advancements in solar module efficiency were highlighted, pointing towards a future where solar energy is seamlessly integrated into everyday structures.

Local and Global Impacts

Logue shared intriguing local projects, including solar trees and charging stations, exemplifying the practical application of these innovations. Logue is most optimistic about Solar Paint envisioning a future where virtually any surface could become a solar energy generator.

Diana DiGangi shed light on industry changes and the National Renewable Energy Laboratory’s (NREL) breakthroughs in solar efficiency and recycling. The industry is moving to improved solar cells, from passivated emitter rear contact (PERC) cells to tunnel oxide passivated contact (TOPCon) cells, making a significant leap forward. With the looming influx of millions of old solar panels, NREL is also focusing on recycling techniques that can also reduce the reliance on mining new material. 

We asked DiGangi about perovskite cells, which have been increasing in efficiency, and she relayed a relayed a quote from NREL Research Engineer Chris Deline “Fundamentally, though, the fact that [perovskite is] so easy to make may be part of why it’s so hard to get it to be stable.” You can read her article on innovation here. 

Another big influence was incentives from governments and the Inflation Reduction Act (IRA). The IRA is playing a pivotal role in spurring the growth of solar innovation and production. So if you are interested in solar you need to pay attention.

The CleanStart Meetup on Solar was a testament to the rapid advancements in solar technology. From the integration of solar power into diverse environments to the strategic improvements in efficiency and sustainability, the meetup illuminated the path forward in harnessing solar energy more effectively and innovatively.

Make sure you follow CleanStart and don’t miss the next meetup.

Get pictures from Kevin’s slides

Thomas Hall

ABOUT THE AUTHOR

Thomas is the Executive Director of CleanStart. Thomas has a strong background in supporting small businesses, leadership, financial management and is proficient in working with nonprofits. He has a BS in Finance and a BA in Economics from California State University, Chico. Thomas has a passion for sustainability and a commitment to supporting non-profits in the region.

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig

Unlocking Sustainable Energy through Material Innovations

Unlocking Sustainable Energy through Material Innovations

In case you missed it, Zack Spencer of NZT Group joined the CleanStart Perspective and delved into how material science is accelerating the energy transition. At NZT Group they are working on groundbreaking advancements in energy storage and materials science that are not just innovative but pivotal for the clean energy transition. They are continuing to work on cutting-edge flywheel technology and its potential to outperform traditional energy storage methods, offering a glimpse into a sustainable future with reduced maintenance, lower costs, and higher efficiency. We profiled the technology they worked on in the past at SPIN storage systems.

NZT has also been providing advancements in gas storage, particularly for natural gas and hydrogen, focusing on improving energy density by safely storing fuels at high pressure. He mentions the importance of materials in these technologies, with a focus on composites for their strength, durability, and efficiency, especially in high-pressure environments.

Materials play a crucial role in hydrogen storage. Spencer shared the effectiveness of storing hydrogen depends significantly on material properties, particularly due to hydrogen’s small molecule size and high permeability. Composites, especially those with carbon fiber, are preferred for their strength, lightweight, and ability to handle high pressures without significant degradation. They overcome the limitations of metals, which can suffer from issues like crack propagation under high pressure. Innovative materials solutions are therefore essential for developing efficient, safe, and cost-effective hydrogen storage systems, as they directly impact the energy density and integrity of storage units.

The conversation covers the broader implications of these technologies for clean energy transitions, including their potential to reduce CO2 emissions, improve energy efficiency, and provide cleaner fuel alternatives. NZT Group and Spencer are looking for ways to collaborate on the energy transition.

You can watch the full discussion here.

Thomas Hall

ABOUT THE AUTHOR

Thomas is the Executive Director of CleanStart. Thomas has a strong background in supporting small businesses, leadership, financial management and is proficient in working with nonprofits. He has a BS in Finance and a BA in Economics from California State University, Chico. Thomas has a passion for sustainability and a commitment to supporting non-profits in the region.

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig

Tzvi Weber Wins $1,000 in Startup Challenge

Tzvi Weber Wins $1,000 in Startup Challenge

Congratulations to one of our Clean Tech CEO Crash Course participants, Tzvi Weber.  He just won $1000 from the regional StartUp Challenge.  That Challenge brought together 11 innovative teams, split into two cohorts: Catalyst and Traction. The Traction Cohort showcased companies already with a work product, with Tzvi’s company Purpuratus, emerging as the first-place winner.  Purpuratus stood out for its pioneering approach in making kelp restoration profitable by repurposing invasive Urchin shells from California’s coast into clothing dyes and calcium citrate. Tzvi credits in part the Crash Course for helping make a compelling case for his innovation.

Christina Granados

ABOUT THE AUTHOR

Christina Granados is the Partnership and Engagement Manager at CleanStart. She is dedicated to fostering partnerships and engaging with the community to advance CleanStart's mission. She brings a wealth of experience in building relationships and creating impactful collaborations that drive positive change in the cleantech industry.

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig

Sierra Energy Making Steady Progress

Sierra Energy Making Steady Progress

It’s Great to Own a Railroad:  Sierra Energy Making Steady Progress 

We recently dropped in on Sierra Energy to get an update on what local environmental champion Mike Hart is doing in his pursuit of a novel waste gasifier.  He has made great progress in the past few years and is ready to get to a full commercial unit perhaps by 2025.  But that is only half the story.

Mike was struck with an idea a quarter century ago.  As sustainable fuel sources are being invented, why not use them to make the cleanest railroad in the country?  In 1993, Mike acquired the Sierra Railroad Company, based in Oakdale, and merged it with the Yolo Shortline Railroad in 2003.  His was the first railroad in the country to run on B100 biodiesel, for which the EPA designated him an Environmental Hero.  Over time he added other branch lines that the major railroads were abandoning.  His view was that there was still a lot of business to be done hauling goods to and from the farms and industries along these routes because rail was the most fuel-efficient way to move this freight.  It turns out he was right and that it was solidly profitable.  This has allowed him to pursue his original visions in ways that even he may not have imagined.  Now, the railroad is profitable and has 215 employees. The railroad not only does freight hauling but also operates excursion trains including the Sunburst operation in Ventura, the Sierra Railroad in the Gold Country, The RiverFox in Sacramento, and the popular Skunk Train from Fort Bragg to Willits.  

While 100% biodiesel was a good step, Mike saw an even better opportunity to use fuel made from waste.  As a Big Bang judge at UC Davis, he found an innovation based on a steelmaking blast furnace that could cleanly convert almost anything into a nonpolluting synthesis gas (basically carbon monoxide and hydrogen), that in turn could fuel many things—even a locomotive.  He acquired the rights to the technology in 2004 and began a long journey to commercialize it, as the FastOx® gasifier.  He landed contracts with the Army and the CEC to install a prototype unit at U.S. Army Garrison Fort Hunter Liggett in Monterey County, and most importantly raised a $33 million Series B in 2019 led by Bill Gates’ Breakthrough Energy Ventures to advance that project by providing funds to upgrade the design and do test-runs on a wide variety of wastes.Sierra Energy Building

The latest news is that Sierra Energy is now building its 2nd generation five-ton per-day demo unit, incorporating a lot of lessons from their test runs to combine some of the processes into a single unit and simplify the slag discharge system.  The result is a significant cost reduction for the eventual 100-ton-per-day unit that will be their initial commercial offering.  That size is very appealing to communities as an alternative to landfills for waste disposal, with the side benefits of getting revenue for several by-products.  Sierra could be operating the demo unit this year and fabricating a first commercial unit in 2025. They still have serious interest from hundreds of customers worldwide.  While Sierra had thought earlier of adding units to convert the synthesis gas into electricity, clean diesel, chemicals, or fertilizer, they now intend to focus on maturing just the gasifier to produce a clean product that can feed these other conversion technologies being pursued elsewhere.  Sierra sees what it has now as a core technology that can be applied in many ways—and they are seeing a lot of interest from those who want the syngas as their feedstock.  

Sierra Energy is now the home for a dedicated cadre of employees, half of which are around the Davis headquarters of the company, and the other half are working at Fort Hunter Liggett.  When asked how he will fund this last step to commercialization, Mike said that a portion of the profits from the railroad will carry the team to its launch point, after getting such a big boost from equity investment and government contracts.  It’s great to own a profitable business that can support the pivotal final push of a startup.

Is that all?  Not by a long shot.  Remember all this started with the notion of having the cleanest railroad in the country.  Mike is not only dead serious about that, but he also wants to pave the way for all the railroads here and abroad to meet the same goal.  For that, he has another startup activity—converting locomotives to being powered by hydrogen fuel cells.  His Sierra Northern Railway subsidiary received a $4 million CEC grant to convert one of the switcher engines in its fleet to cutting-edge fuel cell and battery hybrid technology (to be ready this year) with zero emissions. They have also secured an additional $19.5 million from the California State Transportation Agency (CalSTA) to add three more conversions of these zero-emission switcher locomotives.  Mike has set his sights on converting all 260+ similar locomotives at ports and rail yards in California and plans on building a conversion facility to do it at their 116-acre facility in Oakdale, California.Sierra Train

Tying it all together, one or more FastOx commercial units could provide the hydrogen needed to fuel all these locomotives.  How would they source the waste the unit runs on?  One feedstock could be creosote-soaked rail ties that have no good disposal option now and are just accumulating in piles on the wayside.  The hydrogen locomotives could move goods to rural farming areas, pick up farm products for the return trip, and gather some rail ties or other waste along the way to bring back to the FastOx hydrogen production units for refueling.  It’s practically a circular economy.  

I have known Mike for a long time, even before creating CleanStart (and he was a strong supporter of that initiative).  I am not sure he had all this planned exactly the way it has turned out.  But one of Mike’s greatest skills is in seeing and successfully seizing opportunities that others fear are too risky.  It looks like that skill has been put to good use for the benefit of the environment.  And we will have a stronger cluster of cleantech companies here because of it. 

 

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig

We Boldly Go…Where Others Don’t

We Boldly Go…Where Others Don’t

Once again we gazed into our crystal ball and came up with more predictions for the coming year–this time we have eleven. Will higher utility rates let the rooftop solar industry bounce back?  Will new EV prices drop?  Will Texas overtake California as the leader in total solar installations?  Will there be a big jump in investments in turning captured carbon dioxide into fuels and chemicals?  Will we see over $150 million in investments in clean tech companies in the region?  We stick our necks out on these and other forecasts.

Looking back at how we did last year, we were right on 4 out of 10, and pretty close on one.  We have done much better in earlier years, but we took some bigger swings with last year’s ten.

Have some thoughts on what we say?  Take a look.  Let’s hear what you think.

Higher PG&E Rates Will Open New Opportunities For Rooftop Solar to Rebound

PG&E has some of the most complicated rates in the country and in 2024 it will have the highest prices for electricity in California and one of the highest in the nation.  The average homeowner bill will increase by $33 per month now but could increase by as much as $100 by next year following two more expected rate hikes.  These hikes are the result of the recovery of court-ordered costs for damages from fires for which PG&E has been judged largely responsible as well as new costs for making power lines safer as mandated by the CPUC.

The new rates will shock the system in two ways.  First is the sheer magnitude of the total rate.  PG&E’s average rate in 2013 was about 18 cents per kWh.   With just the January hike, residential rates will likely average over 45 cents/kWh, with rates over 60 cents for certain times (it’s complicated).   With the CPUC likely to approve more cost recovery, the rates seem sure to exceed 55 cents on average.  Any way one looks at it, the rates are tripling.

The second shock is that a growing fraction of a customer’s bill can’t be reduced by trimming usage.  If customers were charged just by their usage, the rates would give most customers the incentive to switch to alternative power sources or to conserve.  To avoid this outcome in part, the alternative PG&E and other utilities in the state proposed was to push up the part of rates that are a fixed amount per month regardless of use, while lowering the price per kWh.  Typically, fixed monthly charges were a few dollars per month.  The new rates boost that to about $19/month.   But it doesn’t stop there.   A new rate proposal would take this much farther, tying the charge to the income level of the customer.  Under the joint utility plan, PG&E households with annual incomes between $28,000 and $69,000 would pay $30 per month in fixed charges. Those earning between $69,000 and $180,000 would pay $51, and those earning more than $180,000 would pay $92. Low-income customers whose annual earnings are at or below the federal poverty level (FPL) would pay $15 per month in fixed fees.  Currently, the average total household electric bill in California is $164 a month. The new monthly fixed charge would average $53, and there would be a 12-cent drop in the price per kWh to about 34 cents.  Some green advocates like this option because it would encourage more conversion from gas to electricity and avoid carbon emissions.

When additional rate hikes are approved, look for a disproportionate increase in the fixed monthly fees.

Seeing these conditions, innovators will begin to respond in 2024.  We don’t expect anything major at first, but a lot of new ideas will begin to bubble up.  Here’s what to watch for.

  • A reinvigoration of solar rooftop sales with the increased savings from avoiding the higher prices.  Solar installations declined precipitously after the CPUC order to cut the price utilities paid for surplus generation (the NEM 3.0 rate).  The higher rates now and later in the year may provide enough incentive to avoid purchases from PG&E that the market could rebound.
  • A push to include storage and load management options along with solar to avoid the priciest part of the day when a kWh may cost over 60 cents and enhance the gains to customers.
  • More sales of storage to existing solar customers who would benefit from using their surplus daytime power production rather than selling it to the utility at the new low NEM 3.0 buyback rates
  • New communities of several thousand homes want to have their own community utility company as a co-operative, a different kind of CCA, or a microgrid, some of which may require changes to the law.  There could be new legislation introduced to remove some of the barriers to communities doing that.  The legislation will probably not be successful in 2024, but could well come back later.
  • High-capacity EV charging stations for heavy-duty vehicles are being powered independently from the grid to avoid big fixed charges as well as the per kWh prices.

Texas Will Make New Solar Installations Twice As Fast As California

California has been the reigning champ of utility-scale solar forever.  Now late-bloomer Texas has been on a tear, while additions in California have grown only slowly.  The result is that Texas is now the leader in this sector.

MW Utility-Scale Solar 2020 2021 2022 2023
California 14.47 15.45 15.97 17.28
Texas 4.88 8.84 14.81 18.36

Data from Canary Media referencing EIA, ERCOT, and CAISO

A big reason for the moderation in new utility-scale solar in California is the growing amount of the output from those systems being curtailed when output at peak times exceeds the need.  Over time, transmission expansions and additions of storage will reduce the curtailments, but until then it is hard to see much more solar being added.

Wind and Solar Curtailments

In the non-utility sector, it is a different story, and California retains its leadership over second-place Texas and third-place Florida in total MW installed.

Total Solar Installed MW # of Installations Avg. kW/installation
California 43,244 1,928,662 22.4
Texas 20,028 264,493 76.4
Florida 12,877 211, 551 60.9

Source:  Wood Mackenzie/SEIA report data

We expect Texas will install new solar in total at twice the pace of California in the coming year which may lead to California losing its overall leadership in five years.  The tide will shift in favor of California if the new utility rates in the state stimulate more non-utility additions.

The Installed Costs of Residential Solar Will Decline Once Again

After steadily declining up to 2019, the installed cost of residential solar systems less than 10 kW began to climb.  We expect better news in 2024 with the costs again declining, but only slightly.

$ Cost/kW 2015 2018 2019 2020 2021 2022 2023
Home solar <10 kW 5.49 4.56 4.50 4.61 4.60 4.74 4.79

Source:  https://www.californiadgstats.ca.gov/charts/

Nationwide There Will Be Over $250 Million in Investment in Carbon Dioxide Utilization Projects, Creating Significant Amounts of Renewable Fuels And Chemicals

The realization will grow that carbon is not the enemy, but digging up and releasing fossil carbon is the real problem.  After all, every one of us and every animal on earth exhales carbon dioxide and has done so for millions of years.  If carbon dioxide emissions were recycled into conventional fuels like diesel, gasoline, and jet fuel, it would solve several problems:  It would yield products that are easy to store, easy to blend into existing stocks of conventional fuels and chemicals derived from oil without the need for all new infrastructure. It would be the need to dig up fossil carbon stores in the form of coal, oil, and natural gas and release that new stored carbon into the air.  As a result, it could hasten the switch away from conventional fuels, faster than could be done with the substitution of electricity and hydrogen for those fuels.  The key is how quickly the recycled carbon fuels can be made economical.

Local company Infinium is a pioneer in making recovered carbon dioxide into new fuels, focusing on creating Sustainable Aviation Fuel or SAF.  It’s a huge market and many companies are pursuing it.

However, this will not diminish the need for carbon-negative projects to reduce the concentration of carbon dioxide in the atmosphere.  And that’s another story.

Two More High-Power EV Charging Stations Will Begin To Be Built in The Region With Capacities Over 10 MW

There is already one of these being built near the Sacramento Airport.  These stations will primarily serve the heavy-duty trucking fleets being mandated by the ARB and will likely be near the major interstate highways.  They will combine solar, wind, and battery storage, but minimize their draw on the power grid to avoid the new high fixed monthly fees as much as possible.  They could also involve backup engine generators running on renewable fuels.

New Investments in Clean Tech Companies in The Region Will Top $150 Million

The total investments in 2023 were well over $100 million.  (We will report more exact figures soon once all the data are in.)  We believe the momentum will continue.  Another company going public like Origin Materials did in 2020 would put that way over $150 million, but we don’t think that will happen.

A Third Long-Duration Energy Storage Project Will Be Launched in Northern California

There are already two.  One 5 MW system is being pursued by Form Energy with its iron-based battery and funded by the CEC to be installed in Mendocino County.  The other is SMUD’s iron redox flow battery system from Energy Storage System which will add 4 MW initially, with potential expansion to 200 MW.  However, the interest is high in getting even more underway to meet the state goal of having 4,000 MW of long-duration storage. We think another group will launch a third MW-scale project this year.  It could use batteries, but it could also involve some different technology like cycling supercritical carbon dioxide.

California will continue to add to its 6,600 MW of shorter duration, grid-scale battery energy storage projects as well, but the new focus is on the long-duration, lower cost systems to provide another layer of backup.

The Value Of an Offset Ton of Carbon Dioxide in California Markets Will Increase Slowly

The upward trend is a relatively new feature.  Offset from the cap-and-trade program stayed below $20 per ton for years, and then moved up to $43 last year. [Waiting for latest data] LCFS credits have been much higher for a ton of carbon dioxide, ending the year at $67 after hitting $86.  We expect the differential to remain and the price of the credits to continue a slow rise to $72.  The price for LCFS credits in Oregon has been above $95.  The credits are not transferable between the states, so that differential may remain.

LCFS Daily Prices

The Year of the USED Electric Car

We have made predictions about electric cars in the past. This year we predict growth in the secondary market. With fleet electric vehicles turning over and over 4.7 Million EVs (plug-in hybrid electric and full electric) sold cumulatively, we expect to see the secondhand market take off this year. This might be a gimme based on Hertz’s recent liquidation of its Tesla. There still is a big bottleneck to secondhand EV adoption though… and that is the ability to repair them.

Commitments to the First Small (less than 20 MW) Offshore Wind Deployments Will Be Made for a Site Off the North Coast

California policy favors some big wind farms offshore in the next two decades.  Conventional wisdom is that any offshore wind farms will involve massive 20+ MW floating platforms with towers over 500 feet tall and that the first deployment will be in Central California.  We have a different view.  We think the first mover will be something smaller and much farther north.  It will lead to the deployment of hundreds of smaller, cheaper floating wind turbines.

The EV Premium Disappears

By some estimates, new EV prices dropped by a 3rd in 2023. Some of this was because of cheaper options entering the market, used options, price slashing of existing EVs, and supply chains untangling. Per Kelley Blue Book, EV prices fell 20%. We expect this trend to continue, though not as significant,  with EV prices falling by less than 10%.

Thomas Hall

ABOUT THE AUTHOR

Thomas is the Executive Director of CleanStart. Thomas has a strong background in supporting small businesses, leadership, financial management and is proficient in working with nonprofits. He has a BS in Finance and a BA in Economics from California State University, Chico. Thomas has a passion for sustainability and a commitment to supporting non-profits in the region.

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig

Commercial Long Duration Storage Advancing

Commercial Long Duration Storage Advancing

We just had a stimulating discussion of some of the latest advances in an important storage technology.  The storage systems now being installed on the grid are not adequate to deal with extended and extreme events that threaten the steady supply of power.  One of the hottest topics in storage is how to deal with this vulnerability and what systems can provide power for over 8 hours that are compact, inexpensive, and durable.  The state has estimated it will take 4,000 MW of long-duration storage facilities to back up an all-clean power system adequately.  

While systems like Compressed Air Energy Storage (CAES) have been touted for years, they turn out to be expensive and limited to geologic situations that are free of leaks.  While hydro-pumped storage has been playing this role for decades, there just are not enough new sites that look like they can be permitted to add to those already in operation.

In our first MeetUp of the year on January 24, we explored the topic with the help of two panelists.  Deepak Aswani, Supervising Principal Engineer for R&D at SMUD, gave an overview of their decision to contract for some pioneer units, the first of which will be a unit from ESS.  And Paul Notti, Director of Sales in the West for ESS, filled in details on their technology and the project with SMUD.

Notti said there are probably 40-50 companies chasing this market, but few are fully commercial or close to it.  In his view ESS is one of the most advanced, with a first commercial deployment in 2015 and a Generation 2 rolling out in 2020.  We have also been watching Form Energy with an iron-air battery and Energy Dome with a reversible supercritical CO2 system as being on the cutting edge as well.  All three have a great deal yet to prove on durability, reliability, and cost.

 

What Customers Demand

Courtesy of ESS, Inc.

The Energy Commission has awarded $30 million to a demonstration project with Form Energy in Mendocino with a 5 MW/500 MWh unit and $31 million to the Viejas Indian Tribe in Anaheim for a system that can store 60 MWh through a combination of a vanadium redox flow battery and zinc ion batteries.

SMUD, after looking at all long duration storage options, has contracted with ESS to install up to 200 MW/2 GWh of its systems, starting with a 4 MW system tied into its distribution network.  If all goes well, ESS may set up a manufacturing line here with hundreds of jobs.

Cycle Capacity

The ESS system is an iron redox flow battery that comes packed in 75 kW modules in 40-foot shipping containers that can be delivered to the site and quickly installed. A 200 MW system would then require over 2500 of the modules of that size.  Notti sees the power cost improving over time to get to about $.05 per kWh.  We would also expect to see the module capacity increasing as experience grows.

Notti noted that there already are over 80 ESS units deployed in the field.  This early momentum for ESS attracted $57 million in investments from powerful backers, including Bill Gates and Softbank.  It went public in January 2021 (NYSE:GWH), raising over $200 million.

With this track record, ESS is likely to have many more projects in California.  Keep an eye on them. 

 

Long Duration Storage

Long Duration Storage

“Solar doesn’t work at night!”… the refrain of Renewable Energy detractors. We all know this and we all should know that storage is a solution to intermittent renewables. Specifically,  Long-duration energy storage. It plays a crucial role in unlocking the full potential of renewable energy sources like wind and solar power. These renewables are intermittent, meaning they don’t produce electricity consistently throughout the day or year. Both wind and solar generation have capacity factors from 30-50% and 15-25% respectively. To overcome this variability and ensure a consistent and reliable power supply, energy storage systems are essential.

The current Lithium-Ion batteries being mass-produced for Electric Vehicles are not a great fit for long duration storage. While they offer performance vehicles, they are also small, expensive, require significant Battery Management and have fewer cycles. 

There are existing Long Durations storage options such as pumped hydro, but companies are looking for options that are more flexible. Such as alternative chemistries, flow batteries, compressed air, flywheels, and whatever this is.

Some ways Long-Duration Storage will benefit people.

  1. **Grid Stability and Reliability by Smoothing Energy Supply**:  Capturing excess capacity long duration storage takes excess energy generated during peak production times and releases it during periods of low production and provides a buffer against fluctuations in renewable energy generation. This is critical in preventing power outages and maintaining a steady supply of electricity.
  2. **Reduction of Fossil Fuel Dependence**: With effective long-duration storage, there’s less need to rely on fossil fuels for energy supply during periods when renewable sources aren’t generating electricity. This reduces carbon emissions and helps in combating climate change.
  3. **Economic Efficiency with Trading and Arbitrage**: By maximizing the use of renewable energy generation, long-duration storage can make renewable energy more economically competitive with traditional energy sources.  Creating energy trading and arbitrage opportunities. Energy can be stored when prices are low and released into the grid when prices are high, benefiting both energy producers and consumers. Helping reduce the overall cost of energy production.

Long-duration storage is vital for bridging the gap between the intermittent nature of renewable energy sources and the constant demand for electricity. It’s an essential component in the transition to a more sustainable and renewable energy-driven future.

If you’re interested in diving deeper into this topic and understanding its real-world applications and advancements, consider joining CleanStart’s CleanTech Meetup on January 24th. This event features experts from SMUD (Sacramento Municipal Utility District) and ESS Inc., a company known for its innovations in long-duration storage technology. It’s a great opportunity to learn from industry leaders, ask questions, and engage with others who are passionate about renewable energy and its integration into our energy systems. Such discussions are invaluable for anyone looking to stay informed about the latest trends and developments in the field of renewable energy and storage solutions.

Thomas Hall

ABOUT THE AUTHOR

Thomas is the Executive Director of CleanStart. Thomas has a strong background in supporting small businesses, leadership, financial management and is proficient in working with nonprofits. He has a BS in Finance and a BA in Economics from California State University, Chico. Thomas has a passion for sustainability and a commitment to supporting non-profits in the region.

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig

Wind Harvest Passes Big Milestone

Wind Harvest Passes Big Milestone

Patience, persistence, and optimism are paying off. Wind Harvest has managed to get to Technology Readiness Level (TRL) 7 with its vertical axis wind turbine (VAWT) technology. That means that they have tested a full-scale prototype in commercial conditions. That testing was done at a UL Advanced Wind Turbine Testing Facility in North Texas where the near-ground winds are very turbulent, just the sort of challenging conditions the Wind Harvester are designed to exploit. 

The prototype provided the data to validate the company’s proprietary “aeroelastic” engineering models that originally were developed by Sandia National Labs. In the process, the company engineering team was able to do a serious redesign—which has dropped the manufacturing and installation costs and increased the durability of the blades, mast, and struts. It also led them to patent a number of critical new parts, patents which themselves may be of great value. 

Now they are getting ready for full third-party certification of their new unit in a longer test at that same facility. That will advance them through TRL 8. They hope to get that started by the middle of the year. Then the next challenge is financing ten or more turbines in different demonstration projects to collect 1-2 years of performance data that banks need to provide project loans to their customers’ wind farm projects. They need $10 million in new investment to get all this done. They are just as clever in raising money as they have been in continuously improving their engineering designs. 

There is a lot to learn from their experience. CEO Kevin Wolf has been officially a part of the company for nearly 25 years, building on work that was started by others in the 1980s. That is a testament to persistence, patience, and optimism about solving the next problem. But Kevin is convinced it will all be worthwhile. He sees the potential for installing hundreds of thousands of MW of vertical axis wind turbines that use their existing and future patents. 

Wind Harvester Model 4.0

50-75 kW rated electrical power

25 mph rated wind speed

11 mph cut-in/56 mph cut-out wind speeds

122 – 310 MWh of Annual Energy Production

Rotor Height: 13 meters

Rotor Diameter: 13 meters

Swept area: 169 m2

3 Blades/ 6 arms

Base tower height: 8–20 meters

You may recall that Wind Harvest is pursuing a small 50-75 kW wind turbine that can handle the turbulent winds near ground level—a resource which the company has documented has huge potential—and installing thousands of them. The idea is to install these short turbines, tightly spaced (3’ apart) under and between the big horizontal axis wind turbines already in wind farms in California and around the globe. The idea is to be able to harvest more of the world’s best

wind resources and reduce the need to convert more land into wind farms. When existing wind farms add short VAWTs to increase their capacity factors, new transmission lines are not needed to move the extra energy to the grid. 

The company was very fortunate in having some patient early investors who put in over $16 million to move the company forward. However, getting the next ten million is going to require some clever ideas. Kevin talked to over 100 VCs in the last few years and has become convinced that they were not going to be a source of investment until his machines were fully tested, validated and bankable. There have been too many failed investments in past clean energy technology companies that were not well vetted That is why he has been so focused on getting past TRL 8 and 9. 

Kevin and the company have found some interesting ways to use crowdfunding to generate money for the testing and redesign steps, but this is only a small amount at a time. He has just closed a round and is about to launch another one via netcapital.com to secure the money to complete TRL 8 and have a turbine ready for sale. Then he wants to raise much more to develop the pioneer demonstration projects to get the company into revenue and the proof points for TRL 9. Facing skeptics still among the big wind farms, his likely locations for this first project may be military bases, islands, and special situations where fear of impacts on the tall turbines will not be such an obstacle. 

His longer-term vision is not to be a project developer, but rather for Wind Harvest to license their patents to bigger players and collect royalties. However, to get to that point, the company likely needs to do more project development itself. Fortunately, the payment of tax credits upfront provided in the IRA, coupled with accelerated depreciation means that there should be a pool of investment available from those with a big tax bill they want to offset, getting them over the hurdle of the high cost of initial units. 

Over time, the company sees the price dropping rapidly with volume. The units are made of simple, mass-producible components that can be delivered in kit form. The fully installed costs for small 1-2 MW-scale projects should be less than $3500/kW, with prospects to drop that cost another 40% with time and volume. 

Kevin’s parting words were “This has been a longer, more difficult slog than we ever thought.” Many cleantech startups can say the same. But in the case of Wind Harvest, the team never gave up and found ways to keep going and actually benefit from the setbacks. He notes, “What we learned has resulted in a breakthrough technology to make use of a massive, untapped renewable energy resource”.

Prediction Results 2023

Prediction Results 2023

2023 Predictions Recap

Last year we looked to make bolder predictions, many around falling prices. Well, some predictions were right, others were wrong.  There was good news from Rivian and vigorous growth in battery deployment, keeping prices high.  The PPA price wars came to an end as demand for clean energy rose and supply chains increased costs. Overall we are saying we went 4 for 10.  

You can read the prediction post here.

There will be no Level 3 Energy Emergency Alerts in California this year.

There were no Stage 3 alerts this year.  There were no Stage 2 and only one Stage 1 alerts this year (to date).  So…bullseye! 

Lithium prices will decline and finish the year below $40,000 per MT.  

Bingo!  Lithium carbonate plunged since the beginning of the year, now sitting under $20,000 per MT.  That’s a drop of 73%.  At the same time, cobalt prices dropped 36%.  Cobalt is another common ingredient in lithium-ion batteries.  Interestingly, nickel prices dropped 42% to $17,421/ton, so lithium is not much more expensive than a common commodity metal also used in batteries.  For comparison, copper is priced at about $8,265/ton (up from its low of $1,300/MT  or $0.63/lb 25 years ago).  Some analysts forecast the price of lithium will double in 2024, but we are skeptical of such a big hike in the face of several large new mines opening up.  

 

Private, pulsed-fusion company Helion will announce reaching significant milestones.  

Nope.  Helion did not announce reaching any new technological milestones that would trigger investors to put in more money.  However, they did sign an agreement with Microsoft to begin providing 50 MW of power by 2028.  Because the agreement is made through Constellation Energy, we guess that if the plant is not ready by 2028, Constellation will provide zero carbon power to Microsoft in another way.  However, if HeLion meets the 2028 deadline, it will likely beat the Small Modular Reactor projects to the finish line in a test of fusion vs. fission.  The slipping deadline with the SMRs has recently been in the news as the leading SMR developer NuScale has had to suspend its pioneer project in Idaho because its intended power purchasers were not willing to pay the price for the power that would make the project viable, even with heavy subsidies from the DOE. In addition, in 2023 both HeLion and our second contender, HB 11 Energy, received small contracts from DOE to continue their work.  A third challenger of note in this race is TAE Technologies in Southern California aiming at the same Proton-Boron fusion reaction, but using pulsed accelerator beams to drive the reaction instead of pulsed lasers.

Regardless of the slower-than-expected advances with any of these technologies, the opportunity they offer to bypass the building of more fission reactors with their enormous waste disposal issues makes them important.  We still like the underdogs.

Power Purchase Agreement pricing on average for either solar or wind will not exceed $50/MWh.  

Oops.  Both solar and wind projects broke the $50 barrier.  We underestimated the impact of higher inflation and the demand pressure on 3Q23 blended prices solar and wind prices.  According to recent surveys by Level Ten Energy,  these blended prices rose to $54.90/MWh, with wind at about $57.50/MWh and solar at about $51/MWh.   It looks like they will continue to rise into 2024.  

 

Low Carbon Fuel Standard credit prices will increase but stay below $70 for the year.  

Wrong.  Prices drifted up to near $90/ton but then came back under $75.   The average for the full year is not yet available, but it looks like it will be near $80. At the same time, the price of a carbon credit in ARB’s Cap and Trade market rose to $39/ton.  Selling credits is becoming more lucrative, with the LCFS credits about double the value of the cap-and-trade variety.  .[We can include the following chart if useful.]

Fewer than 10,000 Level 2 Charging Stations will be installed in 2023 in California.  

 

Sadly, this one was right. Q4 2022 had 78500 Shared and Private Level 2s installed. As of September 12, 2023 (The CEC’s last update) there are 83,597 Shared and Private Level 2s. Just over 5000 were installed. We will keep our eyes open if a more recent update comes out. On a positive note, California now has over 10,000 DC Fast Chargers. Gary and Thomas will have to revisit their debate between level 2 and DC Fast Charging.

 

Two EV startup companies will be acquired, one by a non-OEM.

Complete miss. We reached out of the box on this one predicting consolidation. We thought lagging OEMs would pick up a public company. OEMs like Mercedes have record years selling electric vehicles. Others like Toyota heavily invested in supply chains needed for Electric Vehicles. None have acquired one of the listed companies. But it could happen… Only Rivian showed a significant improvement in its market cap.

 

 

Approx Market Cap ($)

 

Company we predicted

Last Year

Around Now

Acquired

Arrival SA

<150M

25M

No

Electra Meccanica Vehicles Corp

70M

44M

No

Rivian

17B

21.7B

No

Lucid Group Inc.

11B

11B

No

Fisker Inc

2B

555M

No

Faraday Future Intelligent Electric Inc

<150M

15M

No

Canoo Inc

<500M

205M

No

Nikola Corp

1B

1B

No

 

 

The Sacramento Region will attract a net zero fuel investment of>$50 Million.

It happened! Right before we published, Infinium announced $75 Million from Breakthrough Energy Ventures! 

Rivian struggles to make Amazon 10,000 Deliveries

Rivian did something none of the similar EV startups did. Beat predictions. In October, they announced Amazon had 10,000 Rivian delivery vans in service. With their exclusive Amazon deal ending, they have already signed additional fleet deals. Additionally, they have continually upped delivery predictions and through Q3 have sold more than double the Trucks and Vans as Ford and is the only company in our EV acquisition prediction to increase its market cap significantly.

Installed storage capacity in the US will double.  

Close one.  Wood Mackenzie estimates that total installed storage capacity in the US will be 24.6 GWh in 2023, a tiny bit below a doubling from 13.4 GWh.  However, we were correct that the original forecast of 30.3 GWh of storage capacity would turn out to be too high. 

In California in October, the Governor issued a statement that the state now had over 6600 MW of installed battery capacity. a tenfold increase in five years,  That would also mean it had about 16.2 GWh energy storage capacity.

The cost of an electric vehicle battery pack will fall below $140/kWh.

Not sure.  The DOE has not published its new estimates for 2023 yet.  A Goldman Sachs report provides information that indicates a modest decline in 2023 (but not below $140/kWh), with a more significant decline coming in 2024 as the lower prices for lithium, cobalt, and nickel impact costs.

 

Thomas Hall

ABOUT THE AUTHOR

Thomas is the Executive Director of CleanStart. Thomas has a strong background in supporting small businesses, leadership, financial management and is proficient in working with nonprofits. He has a BS in Finance and a BA in Economics from California State University, Chico. Thomas has a passion for sustainability and a commitment to supporting non-profits in the region.

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig

Global Entrepreneurship Week Success

Global Entrepreneurship Week Success

The Carlsen Center for Innovation and Entrepreneurship at Sacramento State recently led the Global Entrepreneurship Week (GEW) activities for the fifth year, marking its significant role in regional economic growth. During the Sacramento Entrepreneurial State of the Union, Clair Whitmer of the California Office of the Small Business Advocate (CalOSBA) announced a substantial $250,000 state grant awarded to the Center. This grant is part of the Accelerate California: Inclusive Innovation Hub initiative, which supports organizations offering entrepreneurial training, coaching, and resources.

Additionally, CleanStart hosted a pitch competition, further enriching the entrepreneurial spirit of the event and providing a platform for emerging businesses to showcase their innovations. This combination of state support, community engagement, and competitive platforms like CleanStart’s pitch competition underscores the dynamic entrepreneurial landscape in the Sacramento region.

The GEW, a global initiative since 2008, involves organizations from over 200 countries hosting events attended by millions. At Sacramento State, President Luke Wood highlighted the Carlsen Center’s vital role in fostering an entrepreneurial culture and its impact on students and the community.

Thomas Hall

ABOUT THE AUTHOR

Thomas is the Executive Director of CleanStart. Thomas has a strong background in supporting small businesses, leadership, financial management and is proficient in working with nonprofits. He has a BS in Finance and a BA in Economics from California State University, Chico. Thomas has a passion for sustainability and a commitment to supporting non-profits in the region.

Sponsors

SMUD
CMC
RiverCity Bank

Weintraub | Tobin, Revrnt, Moss Adams, PowerSoft.biz, Greenberg Traurig