US Energy Storage Association: Covid-19 Will Cause ‘Deep’ Revenue Downturn This Quarter

on April 15, 2020

The US Energy Storage Association (ESA) today released survey results that show the impact that the novel coronavirus will have on the industry. The study was focused on analyzing the covid-19 effect on energy storage companies’ revenue, employment and projects in the second quarter.

The survey, which was answered by 101 representatives across the storage industry, revealed:

  • While 63% of respondents indicated they expected a decrease in revenues (with 33% expecting 20% or greater reduction), 75% did not expect to reduce employment (inclusive of contractors).
  • The top three reasons cited for potential reductions in revenues and/or employment were:
    • Customer delays or cancellations;
    • Difficulty in obtaining equipment, supplies or logistical delays; and
    • Permitting and approval delays.
  • Of the 25% of respondents that indicated they expect to reduce workforce, most expected reductions of up to 20% of their employees.
  • The manufacturing segment of the industry expected more widespread and deeper revenue reductions than the industry segment that includes developers and installers who implement storage projects.

As evidenced by the survey results, it is clear the energy storage industry expects a deep, albeit brief, revenue downturn this quarter. Most companies are focused on retaining their employees during this time in order to better prepare and respond once business returns. However, ESA assesses these results are consistent with the possibility that respondents plan to defer significant workforce reductions until after the end of the second quarter, if conditions do not rapidly improve.

“The covid-19 pandemic has impacted the energy storage industry tremendously. While we still anticipate year-over-year growth, it is clear our industry is suffering with immediate and significant risks of workforce reductions and economic damage,” said Kelly Speakes-Backman, CEO of ESA. “These delays upend grid reliability and resilience efforts, just as we enter fire and hurricane season, and as states, towns, and utilities are beginning to incorporate energy storage systems as backup power to prevent power system disruptions for critical healthcare facilities. As such, ESA is actively seeking immediate relief from Congress and the Administration to relieve the financial stresses on our members and the industry, which represents more than 60,000 people, caused by the virus.”

read more
Fractal Energy Storage ConsultantsUS Energy Storage Association: Covid-19 Will Cause ‘Deep’ Revenue Downturn This Quarter

Powin Releases Large-Scale Lithium Energy Storage System With 20-Year Guarantee

on April 15, 2020
Solar-Power-World

Powin Energy has unveiled three new products, Stack225, Stack230 and Stack230P, its first products utilizing CATL battery cells. All three products were designed by Powin around CATL’s large form factor cells, utilizing Powin’s patented StackOS battery management and controls software. Powin’s proprietary Stack products can perform a wide variety of in front of the meter, behind the meter, and microgrid applications to meet today’s evolving energy storage needs, yet they are designed to be flexible so that as priorities shift, the battery applications can be adapted to meet the needs of future use cases.

Already in mass production, Powin’s Stack225 product is used for 2–hour duration systems and offers a 10-year, one-full-cycle-per-day performance guarantee. The Stack230P is a product designed for shorter duration applications such as frequency regulation and other ancillary services. The Stack230 is Powin’s first product released to the market providing a 20-year, one-full-cycle-per-day performance guarantee. Stack230 was specifically designed for solar + storage applications, which typically require over three-hour system durations and can greatly benefit from a 20-year warranted life span, aligning with the typical life cycle of PV modules. The Stack230 performance guarantee allows the customer to use the batteries installed day 1 to be used for 20 years without any replacement.

“We are excited to formally announce the expansion of our product line to include three new CATL based offerings. By joining CATL’s reputation for quality and consistency with Powin’s utility scale ESS platform we are delivering systems that meet our customer’s needs for performance, reliability and bankability,” said Geoff Brown, President of Powin Energy. “With its 20-year performance guaranty the Stack230 in particular presents an exciting new and affordable option for utilities and IPPs looking to pair storage with new or existing solar projects. We aim to accelerate the modernization of the electric grid by increasing the value of renewable generation assets with long-duration, affordable and high-quality energy storage systems. With its unprecedented reputation and product quality, CATL is the perfect partner in the furtherance of our mission.”

read more
Fractal Energy Storage ConsultantsPowin Releases Large-Scale Lithium Energy Storage System With 20-Year Guarantee

Flow Battery Could Make Renewable Energy Storage Economically Viable

on April 15, 2020

Researchers at the University of Southern California looking to crack the renewable energy storage problem have developed a new version of a redox flow battery from inexpensive and readily-available materials.

Though there are huge lithium-ion battery installations from the likes of Tesla that can store energy harvested from renewables like wind and solar, they’re not exactly cheap. The USC researchers looked to an existing design that stores energy in liquid form.

In the so-called redox flow battery, a positive chemical and a negative chemical are stored in separate tanks. The chemicals are pumped in and out of a chamber where they exchange ions across a membrane – flowing one way to charge and the other to discharge.

Though such systems have previously used expensive, dangerous and toxic vanadium and bromine dissolved in acid for their electrolytes in the past, we have seen recent designs that replace those with organic or more environment-friendly alternatives.

For its design, the USC team used a waste product of the mining industry and an organic material that can be made from carbon-based feedstocks, including carbon dioxide, and is already used in other redox flow batteries.

In tests, the iron sulfate solution and Anthraquinone disulfonic acid (AQDS) battery was found able to charge and discharge hundreds of times with “virtually no loss of power.” The researchers say that the inexpensive nature of the materials used could also lead to significant electricity cost savings compared to redox flow batteries using venadium, if manufactured at scale.

“To date there has been no economically viable, eco-friendly solution to energy storage that can last for 25 years,” said lead author on the study Sri Narayan. “Lithium-ion batteries do not have the long-life and vanadium-based batteries uses expensive, relatively toxic materials limiting large-scale use. Our system is the answer to this challenge. We foresee these batteries used in residential, commercial and industrial buildings to capture renewable energy.”

read more
Fractal Energy Storage ConsultantsFlow Battery Could Make Renewable Energy Storage Economically Viable

FERC to Convene Technical Conference on Generation Resources Paired with Energy Storage

on April 13, 2020

On April 7, 2020, the Federal Energy Regulatory Commission (“FERC”) announced that its staff will host a technical conference in July 2020 to discuss so-called “hybrid resources.” In its notice, FERC explained that it is using the term “hybrid resources” to refer to projects that are comprised of more than one resource type at the same plant location. For this summer’s technical conversation, FERC states that it will focus on scenarios where a “generation resource and an electric storage resource [are] paired together as a hybrid resource.”

FERC’s interest in this topic does not appear out of nowhere. FERC has been focused on facilitating emerging technologies and the integration of new technologies into the grid and the wholesale markets, as evidenced by recent orders such as FERC Order No. 841 (concerning participation by energy storage resources in U.S. wholesale power markets). In response to filings by the California Independent System Operator’s and PJM Interconnection for compliance with FERC Order No. 841, FERC received comments from the Energy Storage Association (“ESA”) and others raising the possibility of hybrid resources that would include energy storage.[1] ESA highlighted the hybrid resource issue and requested that FERC convene a separate proceeding or technical conference to consider the matter. Although FERC determined that ESA’s suggestion for a separate review of hybrid resources was beyond the scope of those Order No. 841 compliance proceedings,[2] it is convening this technical conference to learn more about the issue.

FERC’s technical conferences are not adjudicatory proceedings and will not create immediate obligations for FERC-regulated parties or projects. But technical conferences provide an opportunity for industry experts to educate FERC commissioners and staff on emerging trends in the industry. Because this generation plus storage topic is receiving more and more attention among energy industry participants (and indeed was the topic of a panel discussion at K&L Gates’ third annual Energy Storage Conference in November 2019), it is a timely topic.

read more
Fractal Energy Storage ConsultantsFERC to Convene Technical Conference on Generation Resources Paired with Energy Storage

Flow Battery Could Make Renewable Energy Storage Economically Viable

on April 13, 2020

Researchers at the University of Southern California looking to crack the renewable energy storage problem have developed a new version of a redox flow battery from inexpensive and readily-available materials.

Though there are huge lithium-ion battery installations from the likes of Tesla that can store energy harvested from renewables like wind and solar, they’re not exactly cheap. The USC researchers looked to an existing design that stores energy in liquid form.

In the so-called redox flow battery, a positive chemical and a negative chemical are stored in separate tanks. The chemicals are pumped in and out of a chamber where they exchange ions across a membrane – flowing one way to charge and the other to discharge.

Though such systems have previously used expensive, dangerous and toxic vanadium and bromine dissolved in acid for their electrolytes in the past, we have seen recent designs that replace those with organic or more environment-friendly alternatives.

For its design, the USC team used a waste product of the mining industry and an organic material that can be made from carbon-based feedstocks, including carbon dioxide, and is already used in other redox flow batteries.

In tests, the iron sulfate solution and Anthraquinone disulfonic acid (AQDS) battery was found able to charge and discharge hundreds of times with “virtually no loss of power.” The researchers say that the inexpensive nature of the materials used could also lead to significant electricity cost savings compared to redox flow batteries using venadium, if manufactured at scale.

read more
Fractal Energy Storage ConsultantsFlow Battery Could Make Renewable Energy Storage Economically Viable

Deep Savings Make Electric Buses and Microgrid a “No Brainer” for Transit Authority in California

on April 13, 2020

Choosing electric buses powered by a microgrid was an easy decision for the Antelope Valley Transit Authority (AVTA), which expects significant fuel savings, resilience and cleaner air from the project in the Los Angeles , Calif. area.

“This is a no brainer,” said Macy Neshati, executive director and CEO of AVTA, which provides local, commuter and dial-a-ride service to more than 450,000 residents in the cities of Lancaster and Palmdale. Residents in unincorporated portions of northern Los Angeles County are also served.

AVTA now operates 44 transit buses that are electrified, and plans to electrify another 30 commuter buses and add a microgrid that will provide 100% of the charging for buses. The microgrid will be housed at AVTA’s bus maintenance depot, he said. The buses will be charged when needed while they’re at sites located along routes, away from the depot, and those sites will have solar and batteries.

When the microgrid is complete, charging prices will drop significantly, he said. AVTA now pays Southern California Edison (SCE) and Pacific Gas and Electric (PG&E) 13 cents/kWh for charging. That includes the utilities’ agreeing to wave “demand charges and onerous fees,” he said.

Under a new contract with Duke Energy, the price for charging buses at five sites that are located outside the main bus depot will be 9.5 cents/kWh. But when buses are being charged directly by the microgrid at the bus maintenance depot, prices could be as low as 4.5 cents/kWh, Neshati said.

No wheeling charges with microgrid
The extra 5 cents/kWh for the offsite charging stations is due to wheeling charges from the utilities, a fee to cover costs of moving power from a generation facility to the distribution lines. He noted that the wheeling charges don’t apply when buses are charged directly by the microgrid.

AVTA will also meet California’s low-carbon fuel standards, providing additional savings. “For electricity use for charging electric vehicles (EV), you get low carbon fuel standard credits,” he said.

The state’s low carbon fuel standards are designed to cut the carbon intensity of transportation fuels. The state developed the standards — which consider greenhouse gas emissions from extraction to combustion — to meet California’s climate bill. AVTA owns its credits, which can be sold.

read more
Fractal Energy Storage ConsultantsDeep Savings Make Electric Buses and Microgrid a “No Brainer” for Transit Authority in California

Microgrid Bill that Clarifies Utility & Operator Roles Approved by Maine House

on April 13, 2020

The Maine House has approved a microgrid bill that would open the state to microgrid development and clarify utility and operator roles.

L.D. 13, passed by the House on a 85-54 vote in mid-March, directs the Maine Public Utilities Commission to approve microgrid proposals of up to 25 MW if they are in the public interest.

The bill originally had a 10-MW cap on the size of potential microgrids, but Mt. Desert Island is considering setting up a microgrid and the Joint Standing Committee on Energy, Utilities and Technology decided to increase the cap to match the island’s needs, according to Rep. Seth Berry, one of the panel’s chairs.

Maine technically allows microgrids, but under current law it is easier to form a utility to provide microgrid services than to simply establish a microgrid, Berry said in an interview.

“It’s not possible to set up a true microgrid,” Berry said. “The minute you need poles and wires to deliver power between customers, then you’re acting as a utility.”

To deal with that issue, the bill declares that microgrid operators would not be deemed public utilities under Maine statute.

Criteria for regulatory review
The bill sets criteria the PUC must use when reviewing microgrids proposals, including that they meet Maine’s renewable portfolio standard requirements and that they are in the service territory of a utility with at least 50,000 customers.

Also, anyone proposing a microgrid must have the financial and technical capacity to build and operate one, according to the bill. The microgrid must be shown not to hurt grid reliability.

read more
Fractal Energy Storage ConsultantsMicrogrid Bill that Clarifies Utility & Operator Roles Approved by Maine House

Spanish Govt Invites Comment on Future Storage, Hydrogen Policy

on April 10, 2020
Renewables-Now

April 9 (Renewables Now) – The Spanish ministry for ecological transition on Wednesday invited public and stakeholder opinion on the government’s Energy Storage Strategy and the Renewable Hydrogen Roadmap, two pieces of regulation needed so that Spain can reach the targets set out in the 2021-2030 national energy and climate plan (NECP).

Spain’s NECP addresses the opportunity to use surplus electricity with complex storage systems, as well as renewable hydrogen in high-temperature industrial processes and transport, the ministry said. But to develop and make use of these technologies, a proper strategy is needed.

Before drafting these documents, the ministry has asked stakeholders to comment on the role of storage in the electricity sector, possible incentives to promote its deployment, how to engage citizens and sectors in the implementation of the storage strategy, among others.

The consultation for the Renewable Hydrogen Roadmap will seek to identify sectors in which the use of hydrogen can contribute the most to the decarbonisation of the Spanish economy, possible barriers that prevent its deployment, as well as what factors should be considered from the socio-economic and environmental point of view.

Public consultation will be open for 15 days, but it will begin only after the state of emergency imposed to contain the COVID-19 pandemic is lifted, the ministry added.

read more
Fractal Energy Storage ConsultantsSpanish Govt Invites Comment on Future Storage, Hydrogen Policy

Microgrid Bill that Clarifies Utility & Operator Roles Approved by Maine House

on April 10, 2020

The Maine House has approved a microgrid bill that would open the state to microgrid development and clarify utility and operator roles.

L.D. 13, passed by the House on a 85-54 vote in mid-March, directs the Maine Public Utilities Commission to approve microgrid proposals of up to 25 MW if they are in the public interest.

The bill originally had a 10-MW cap on the size of potential microgrids, but Mt. Desert Island is considering setting up a microgrid and the Joint Standing Committee on Energy, Utilities and Technology decided to increase the cap to match the island’s needs, according to Rep. Seth Berry, one of the panel’s chairs.

Maine technically allows microgrids, but under current law it is easier to form a utility to provide microgrid services than to simply establish a microgrid, Berry said in an interview.

“It’s not possible to set up a true microgrid,” Berry said. “The minute you need poles and wires to deliver power between customers, then you’re acting as a utility.”

To deal with that issue, the bill declares that microgrid operators would not be deemed public utilities under Maine statute.

Criteria for regulatory review
The bill sets criteria the PUC must use when reviewing microgrids proposals, including that they meet Maine’s renewable portfolio standard requirements and that they are in the service territory of a utility with at least 50,000 customers.

Also, anyone proposing a microgrid must have the financial and technical capacity to build and operate one, according to the bill. The microgrid must be shown not to hurt grid reliability.

There must also be a contractual relationship between the microgrid operator and consumers within the area to be served by the proposed microgrid.

In a key change, the bill was amended to remove language barring investor-owned utilities and their affiliates from owning and operating microgrids.

When reviewing proposed projects, the PUC may consider possible ratepayer effects, positive or negative, benefits from increased resilience or reliability of the electric grid, economic development benefits or “any other factors” the commission considers necessary to promote the public interest, according to the bill

read more
Fractal Energy Storage ConsultantsMicrogrid Bill that Clarifies Utility & Operator Roles Approved by Maine House

Looking Back Over Lithium

on April 10, 2020
PV-Magazine

Since scientists demonstrated the first rechargeable lithium-ion battery in 1976, the technology has proven its world-changing potential in the electronics industry. But even as applications in electric vehicles and stationary storage record massive growth, the technology has issues to overcome and scientists the world over are hard at work on integrating new materials and pushing more performance out of batteries still based on the concepts illustrated by scientists almost half a century ago.

And looking back over these developments can be valuable in informing the future direction of research. Arumugam Manthiram has been a professor at the University of Texas at Austin for 20 years, and has also worked on lithium-ion technology alongside Nobel Prize-winning scientist John Goodenough. In a review paper published in Nature Communications, Manthiram delves into the history of lithium-ion technology and examines the issues influencing current research into new battery concepts.

“Cost and sustainability are becoming critical as we move forward with large-scale deployment of lithium-ion batteries,” says Manthiram. “Also, there is an appetite to increase the energy density beyond the current level to keep up with the advances in portable electronic devices and enhance the driving range of electric vehicles.”

Big three

The paper outlines three major discoveries that brought about the lithium-ion batteries we see on the market today.

The first demonstration of a rechargeable battery with a lithium-metal anode and titanium sulfide cathode by M. Stanley Whittingham at Exxon in the 1970s provided proof of concept for recent advances in the understanding of intercalation chemistry. This battery was hampered by low voltage and energy density, as well as dendrite growth on the lithium-metal anode – a problem scientists today are still working to solve.

Next Manthiram focuses on work by John Goodenough’s group in the 1980s, which was awarded the 2019 Nobel Prize for Chemistry. This concerns the design of oxide cathodes, which allowed for increased voltage in the battery. Goodenough’s group also divided oxide cathodes into three classes (layered, spinel and polyanion), which remain the only practical cathode types to this day, and serve as the basis for future developments.

Finally, further work by Goodenough’s group in the 1980s, led by visiting researcher Koichi Mizushima, provided the first demonstration of a lithium battery with a carbon anode and lithium cobalt oxide cathode. It represented the first time the technology overcame safety and energy density issues, and was presented as something ready for commercialization.

read more
Fractal Energy Storage ConsultantsLooking Back Over Lithium