Wind does not blow all the time, nor does the sun shine consistently. Battery storage has, therefore, become an essential component of a transition from dirty fossil fuels to clean renewables, from utility-scale installations to the individual home and vehicle. While hydro, biomass, and thermal are all examples of energy storage, the battery is currently the key component that will make electricity derived from clean and renewable but intermittent sources like solar and wind available where and when it is needed.

Energy storage is also critical in meeting electricity demand during peak times, such as on hot summer days when air conditioners are blasting or at nightfall when households turn on their lights and electronics. Energy storage allows greater grid flexibility as distributors can buy electricity during off-peak times when energy is cheap and sell it to the grid when it is in greater demand. For a look at the status of five energy storage technologies go here.

Energy storage will play a crucial role in meeting aggressive renewable-energy targets, according to the New York State Energy Research and Development Authority, or NYSERDA. These include a mandate to derive as much as 70 percent of the state’s electricity from renewable sources by 2030 and 100-percent carbon-free electricity by 2040. “Storage will help to integrate clean energy into the grid,” and also “stabilize supply during peak electric usage,” according to NYSERDA.

Battery storage can reduce demand on the grid, provide emergency backup for residential electricity, and deliver 100-percent clean energy if charged by solar panels or another renewable source, replacing the need for fossil fuel-fired “peaker plants” that operate as needed to meet peak energy demand.

State-level mandates like New York Gov. Andrew Cuomo’s Community Solar and Storage Program, announced in February, 2021, will “drive down costs and scale up the market for these clean energy technologies.”

The price for lithium ion batteries, the leading energy storage technology, remains high, however, even as prices for solar and wind diminish. So researchers are exploring other alternatives, including flow batteries, thermal batteries, and gravity-based systems. The size of the energy storage market is predicted (as of 3/14/2020) to be $620 billion in investment by 2040.

The Future Of Energy Storage Beyond Lithium Ion


Battery Storage for Fossil-Fueled Peaker Plant Replacement: A Maine Case Study

Across the country, more than a thousand fossil fuel burning peaker power plants sit idle, waiting to be called upon by electricity grid operators. These plants are designed to fire up quickly in response to…
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Battery storage is essential; recent fires show that safety is, too

By Julie Tighe 03/04/24
New York generates more power from renewable energy than any state in the Eastern United States. Clean hydropower provides 21% of the state’s energy generation, with another 8% from wind capacity and 5% from solar…
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New York proposes 15 safety recommendations for battery energy storage facilities

By Kavya Balaraman 02/08/24
An inter-agency fire safety working group put together by New York Gov. Kathy Hochul, D, following multiple fires at battery storage facilities in the state last year, on Tuesday issued an initial list of draft…
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How Arizona sends solar power to your light switch, long after the sun goes down

By Andy Tobin 01/30/24
Markets that have more choice and competition are better for consumers. The energy market is no different. In the past, our choices were mostly limited to a handful of fuels — coal, oil, natural gas,…
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The US’s largest solar + battery storage project just came online

By Michelle Lewis 01/25/24
The US’s largest solar + battery storage project, Edwards & Sanborn, has come online in Kern County, California.
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LG Energy unveils 10 grid-scale battery storage projects for 2024

By Lamar Johnson 01/08/24
The portfolio of facilities will help avoid the equivalent of 16 million pounds of carbon dioxide emissions each year, the company calculated using the EPA’s greenhouse gas equivalencies calculator.
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Residents meet to air safety concerns about proposed battery storage unit in Holtsville

By Mark Harrington and Carl MacGowan 10/25/23
Residents concerned about a proposed battery storage facility being built in Holtsville are holding two meetings to air their grievances. The PSC on Oct. 12 gave formal approval to the $110 million project, which includes…
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Old West Virginia Steel Mill Becomes a Green-Energy Powerhouse

By Scott Patterson 09/18/23
For decades, iron ore was shipped into a sprawling steel mill on the banks of the Ohio River near Pittsburgh. Iron deliveries will resume soon at the 55-acre site, this time as a key ingredient…
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Sodium-ion batteries are gaining traction thanks to a ‘game-changing’ new partnership: ‘The battery of the future’

By Ben Rake 09/17/23
Chinese electric vehicle (EV) manufacturers BYD and Huaihai Holding Group have announced a partnership to become world leaders in producing sodium-ion batteries for small EVs.
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Graham Palmer: “Energy Storage and Civilization: A History”

By Nate Hagens 09/06/23
On this episode, Nate is joined by Graham Palmer, a scholar and engineer in the field of energy. While this show frequently covers the importance of energy itself, this discussion focuses on how the ability…
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Mineral crisis looms over U.S. clean energy transition

By James Osborne 08/16/23
The United States is facing a looming shortfall of nickel, copper and cobalt, materials critical to the manufacturing of battery systems needed for electric vehicles and to balance wind and solar on the power grid.
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Governor Convenes Working Group After Fires at Three BESS Facilities

By Tom Gogola 08/02/23
Just days after the Southampton Town Board’s recent decision to enact a six-month moratorium on battery energy storage systems proposed in the town, Governor Kathy Hochul announced the creation of... more
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Energy Storage Reports and Data

The following resources provide information on a broad range of storage technologies.

Fact Sheet: Energy Storage (2019)

Due to growing concerns about the environmental impacts of fossil fuels and the capacity and resilience of energy grids around the world, engineers and policymakers are increasingly turning their attention to energy storage solutions. Indeed,…

Energy Storage

In response to increased State goals and targets to reduce greenhouse gas (GHG) emissions, meet air quality standards, and achieve a carbon free grid, the California Public Utilities Commission (CPUC), with authorization from the California…

How Energy Storage Works

Emerging storage facilities will allow us to store energy generated from wind and solar resources on shorter time frames to smooth variability, and on longer cycles to replace ever more fossil fuel. By charging storage…

Renewable Energy Storage

The largest of the current renewable energy storage projects utilizing hydrogen that are currently in operation are facilities located in Germany at Grapzow [81] in the province of Mecklenburg-Vorpommern and in Falkenhagen [82] in Brandenburg.…

Pairing Wind with Energy Storage Is Critical for Renewable Energy Future

A new report from Navigant Research examines the use of energy storage for wind integration, covering existing and upcoming projects, the competitive landscape, and expected market growth.

There’s a Simple Way to Store Renewable Energy, And We Already Have The Technology

The effect that fossil fuels are having on the climate emergency is driving an international push to use low-carbon sources of energy. At the moment, the best options for producing low-carbon energy on a large…

Energy Storage—A Trillion-Dollar Holy Grail

The science of renewable energy is remarkable—the ability to harness nature to magically power our modern world is a seductive vision. And yet, the actual business of renewable energy is late to establish itself as…

Energy storage

Energy storage is the capture of energy produced at one time for use at a later time. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including…

Energy Storage

One of the distinctive characteristics of the electric power sector is that the amount of electricity that can be generated is relatively fixed over short periods of time, although demand for electricity fluctuates throughout the…

Technologies Of energy storage

A wide array of storage technologies have been developed so that the grid can meet everyday energy needs.

Utility-Scale Batteries Innovation Landscape Brief

This brief is part of the IRENA project “Innovation landscape for a renewable-powered future”, which maps the relevant innovations, identifies the synergies and formulates solutions for integrating high shares of variable renewable energy (VRE) into…

U.S. Grid Energy Storage Factsheet

CSS has developed a growing set of factsheets that cover topics including energy, water, food, waste, buildings, materials, and transportation systems.

U.S. utility-scale battery storage power capacity to grow substantially by 2023

Utility-scale battery storage units (units of one megawatt (MW) or greater power capacity) are a newer electric power resource, and their use has been growing in recent years.


Report: Energy Storage as a Service Market Size Worth $2.7 Billion by 2028

By Emily Holbrook   11/29/21  
The global energy storage as a service market (ESaaS) size is expected to reach $2.7 billion by 2028, according to a new report by Grand View Research. It is expected to expand at a CAGR…
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Taking Charge: Kore Power CEO Lindsay Gorrill on building a battery manufacturing ecosystem in Arizona

By Jason Plautz   11/24/21  
As the Biden administration pushes massive investments in clean energy as part of a goal to reach net zero emissions by 2050, the White House wants the technology behind that energy to be homegrown.
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How the U.S. Lost Ground to China in the Contest for Clean Energy

By Eric Lipton and Dionne Searcey   11/21/21  
Tom Perriello saw it coming but could do nothing to stop it. André Kapanga too. Despite urgent emails, phone calls and personal pleas, they watched helplessly as a company backed by the Chinese government took…
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Long-Duration Energy Storage Could Solve the Dilemma of Harnessing the Sun

By Amy Brown   11/05/21  
There’s a raft of issues being discussed by world leaders in Glasgow, Scotland this week at COP26. But few would argue against the importance of accelerating the transition from fossil fuels to clean energy to…
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Used EV batteries are storing solar power at grid scale — and making money at it

By Julian Spector   10/18/21  
In a parched corner of the Mojave Desert, car batteries are at the center of a revolution. Instead of fading into obsolescence when they retire from propelling zero-emission Nissan Leafs, these battery packs now work…
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U.S. energy department picks Shell-led consortium for hydrogen storage project

By Ruhi Soni   10/14/21  
The U.S. Department of Energy (DOE) awarded a contract to a consortium of companies led by oil major Royal Dutch Shell PLC to demonstrate that a large-scale liquid hydrogen storage tank is feasible at import…
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Developers increasingly pair batteries with utility-scale solar to combat declining value in crowded markets

By Emma Penrod   10/13/21  
Utility scale solar may have hit a record, and in many regions, a turning point in 2020, according to the national lab's new analysis. Utility scale installations added 12.8 GWdc to the grid in 2020, more…
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ESS, SB Energy reach major deal for flow battery technology with 2 GWh agreement

By Jason Plautz   10/04/21  
SB Energy, a subsidiary of Japanese conglomerate SoftBank Group, reached an agreement to purchase 2 GWh of iron flow energy storage from Oregon-based ESS — a major deal for the emerging technology.
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Most planned U.S. battery storage additions in next three years to be paired with solar

Of the 14.5 gigawatts (GW) of battery storage power capacity planned to come online in the United States from 2021 to 2024, 9.4 GW (63%) will be co-located with a solar photovoltaic (PV) power plant,…
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DOE Invests $27 Million in Battery Storage Technology and to Increase Storage Access

The U.S. Department of Energy (DOE) today announced $17.9 million in funding for four research and development projects to scale up American manufacturing of flow battery and long-duration storage systems. DOE also launched a new…
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Why Battery Storage Is Turbocharging Renewable Energy

By Brayden Gerrard   09/16/21  
Renewable energy is taking over electricity grids around the world. Wind and solar energy now provide almost 10% of global electricity, compared to less than 1% just 15 years ago.
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Battery Makers Tied to Power Grid Attract Big Investors

By Scott Patterson   09/09/21  
Big investors are charging into startups touting experimental new battery technologies that would make it possible for renewable energy sources to produce most of the country’s electricity.
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Tesla plan to sell electricity in Texas would cut out the ‘middleman’

By Jason Plautz   09/01/21  
The Public Utility Commission of Texas has until November 15 to decide on Tesla's application to sell electricity in the state's deregulated market.
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The other job for batteries in boosting the electric vehicle market

By Ben German   08/27/21  
The electric mobility company Revel is installing battery storage at a New York City charging hub in a partnership that represents a growing and evolving trend in the industry.
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Battery storage is on a growth spurt that’s about to get even bigger, EIA says

By Emma Penrod   08/26/21  
Battery storage is on the cusp of a major growth spurt, according to a report by the U.S. Energy Information Administration (EIA). The number of large-scale battery storage systems operating in the U.S. increased 28% in 2019…
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Stealthy battery company backed by Bill Gates, Jeff Bezos has a lot to prove

By Catherine Clifford   08/25/21  
A secretive start-up called Form Energy says it’s developing and scaling the production of a new type of rechargeable battery that can store electricity for 100 hours.
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Extreme weather events are pushing consumers to solar and residential storage

By Pippa Stevens   08/25/21  
Extreme weather events across the U.S. — from wildfires and drought in the West, to deep freezes and floods in the South and Southeast — have disrupted the electric grid this year. As a result,…
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Grid storage is required, but a lot less than many think

By Michael Barnard   08/04/21  
There are multiple races under way in grid storage. The big one right now is securing seed funding for potential battery technologies. Billions are being invested in often faint hopes. Within technology groupings such as…
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Here’s how we can build clean power infrastructure at huge scale and breakneck speed

By Jeff St. John   08/03/21  
The U.S. can cut its carbon emissions to zero by 2050 — but it will have to build far more wind and solar farms, battery storage facilities, transmission lines and still-unproven energy systems than it’s…
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Long-duration storage market on the ‘cusp of maturity’: ESS CEO

By Jason Plautz   07/29/21  
The long-duration energy storage market is on the verge of a major evolution that will help support a more rapid transition to renewable energy, speakers said at the Wood Mackenzie's Power & Renewables Conference on Tuesday…
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Musk: Supply chain issues creating ‘significant unmet demand’ for Tesla Megapack storage battery

By Jason Plautz   07/27/21  
Tesla notched its eight consecutive profitable quarter, reporting more than $1 billion in net income in the second quarter of 2021 based on growth in electric vehicle and energy product sales.  Deployments of both the…
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Form Energy’s $20/kWh, 100-hour iron-air battery could be a ‘substantial breakthrough’

By Jason Plautz   07/26/21  
Somerville, Massachusetts-based startup Form Energy on Thursday announced the chemistry for an iron-air-exchange battery that could offer long-duration storage at a price of less than $20/kWh.
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Stealthy storage contender Form Energy reveals secret formula: Iron and air

By Julian Spector   07/23/21  
Form Energy finally lifted the veil of secrecy over its technology that purports to store clean electricity for days on end.
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Startup Claims Breakthrough in Long-Duration Batteries

By Russell Gold   07/22/21  
Form Energy Inc.’s batteries are far too heavy for electric cars. But it says they will be capable of solving one of the most elusive problems facing renewable energy: cheaply storing large amounts of electricity…
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California’s electric car revolution, designed to save the planet, also unleashes a toll on it

By Evan Halper   07/21/21  
The precious cargo on the ship docked in San Diego Bay was strikingly small for a vessel built to drag oil rigs out to sea. Machines tethered to this hulking ship had plucked rocks the…
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Collective battery storage could be the secret ingredient to a climate-friendly grid

By Sarah DeWeerdt   07/20/21  
An egg, a cup of flour, a kilowatt-hour of battery power: these are things you might borrow from your neighbors in a climate-friendly world, a new study suggests.The research is part of the growing effort…
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Energy Department Targets Vastly Cheaper Batteries to Clean Up the Grid

By Brad Plumer   07/14/21  
The Energy Department on Wednesday announced a new effort to tackle one of the toughest technical challenges facing President Biden’s push for an electric grid dominated by solar and wind power — namely, what to…
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Energy Dept. seeks to cut cost of energy storage, boost renewables

By Rachel Frazin   07/14/21  
The Energy Department will attempt to decrease the cost of energy storage technology by 90 percent within a decade in an attempt to boost clean energy use.
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DOE initiative seeks to drop long-duration storage cost 90% in a decade

By Jason Plautz   07/14/21  
The U.S. Department of Energy (DOE) has set a goal to reduce the cost of utility-scale, long-duration energy storage by 90% within a decade to bolster a grid powered by renewable energy.
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As US aims to boost clean energy supply chain, critical minerals gap largely human-caused, analysts say

By Emma Penrod   06/17/21  
For many American businesses — and consumers — the onset of COVID-19 was an unexpected wake-up call as supply chains collapsed and store shelves emptied. But potential for supply-chain logjams existed before the pandemic.
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A power plant in Maryland ditches coal for batteries, a first for the US

By Julian Spector   06/14/21  
Coal plants are shutting down across the U.S., but one in Maryland is switching to battery power in what appears to be a nationwide first. If successful, the transition could kick off a trend with…
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Storage providers face bankability challenge as customers prefer Tesla

By Jason Plautz   06/14/21  
Amid concerns about the materials chain for lithium-ion batteries, energy storage providers like Powin Energy, Fluence and Wärtsilä say they’re facing a different, lesser-known supply issue: a small pool of well-known battery makers trusted by…
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Long-duration storage can help clean up the electricity grid, but only if it’s super cheap

By David Roberts   06/09/21  
Here at Volts, I recently spent a week … OK, a month writing about batteries, which store energy for electronic devices, electric vehicles, and, at least for short periods of time (four to six hours),…
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White House vows new moves to shore up battery supply chain

By Ben Geman   06/08/21  
The White House is pledging a multi-agency push to spur more U.S. battery manufacturing and sustainable mining — both domestically and abroad — of raw materials used in battery tech. Why it matters: The administration…
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How Tesla Is Quietly Expanding Its Energy Storage Business

Elon Musk announced that Tesla was getting into the energy business in 2015 and now it’s betting that it will become increasingly important for the company. In 2020, it surpassed 3 gigawatt hours of energy…
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Rooftop solar and home batteries make a clean grid vastly more affordable

By David Roberts   05/28/21  
Energy nerds love arguing over the value of distributed energy resources (DERs), the rooftop solar panels and customer-owned batteries that are growing more popular by the day. There’s a fight in California right now over…
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Battery Week: everything in one place

By David Roberts   05/19/21  
As you might have gathered from the name, when Battery Week began … a month ago, I did not anticipate it going on quite so long. Since it has dragged out a bit, I thought…
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Tesla shifts battery chemistry for utility-scale storage Megapack

By Jason Plautz   05/18/21  
Tesla is switching to lithium iron phosphate (LFP) battery cells for its utility-scale Megapack energy storage product, a move that analysts say could signal a broader shift for the energy storage industry.  Costs for LFP batteries have…
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Competitors to lithium-ion batteries in the grid storage market

By David Roberts   05/14/21  
Up to now, we’ve been focusing on lithium-on batteries (LIBs) — why they are so important, how they work, and the varieties of LIBs that are battling it out for the biggest battery market, electric…
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Developer Of Aluminum-Ion Battery Claims It Charges 60 Times Faster Than Lithium

By Michael Ray Taylor   05/13/21  
Range anxiety, recycling and fast-charging fears could all be consigned to electric-vehicle history with a nanotech-driven Australian battery invention. The graphene aluminum-ion battery cells from the Brisbane-based Graphene Manufacturing Group (GMG) are claimed to charge…
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Tesla Powerwall: Is it the best solar battery?

Solar storage was once a conversation about the distant future, but Elon Musk's announcement of the Tesla Powerwall battery system changed it to a conversation about the now.
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The Lithium Gold Rush: Inside the Race to Power Electric Vehicles

By Ivan Penn and Eric Lipton   05/06/21  
A race is on to produce lithium in the United States, but competing projects are taking very different approaches to extracting the vital raw material. Some might not be very green.
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IEA: Mineral supplies for electric cars ‘must increase 30-fold’ to meet climate goals

By Josh Gabbatiss   05/05/21  
At least 30 times as much lithium, nickel and other key minerals may be required by the electric car industry by 2040 to meet global climate targets, according to the International Energy Agency (IEA).
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Corporate funding for solar surges in Q1, but venture capital eyes are on storage, Mercom finds

By Emma Penrod   04/21/21  
While investors increasingly seek solar company stocks for reliable returns, energy storage is the new rising star of energy venture capital, according to Raj Prabhu, CEO of the Mercom Capital Group.
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Power Edison supplying the world’s largest mobile battery energy storage system

By Robin Whitlock   04/20/21  
Power Edison, the leading developer and provider of utility-scale mobile energy storage solutions, has been contracted by a major US utility to deliver the system this year. At more than three megawatts (3 MW) and twelve…
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Apple Investing in Major Energy Storage Project in California

Apple has announced it is investing directly in renewable energy projects to cover a portion of upstream emissions, as well as a major energy storage project in California to pilot new solutions for renewable infrastructure.
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The race is on to strike ‘white gold’ at California’s Salton Sea

By Sammy Roth   03/18/21  
There are few places in California, maybe anywhere, weirder or more wonderful than the Salton Sea. It’s a sparkling blue oasis in the state’s southeastern corner, framed by harsh desert, jutting mountains and seemingly endless…
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Tesla Is Plugging a Secret Mega-Battery Into the Texas Grid

By Dana Hull and Naureen S Malik   03/08/21  
Elon Musk is getting into the Texas power market, with previously unrevealed construction of a gigantic battery connected to an ailing electric grid that nearly collapsed last month. The move marks Tesla Inc.’s first major…
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S&P: Despite storage growth, US to achieve ‘marginal’ carbon-free capacity increases through 2035

By Robert Walton   02/18/21  
There will be 8.5 GW of new storage added to the U.S. grid by the end of 2021, and another 2 GW annually through 2025, according to new estimates from S&P Global Market Intelligence. Storage…
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Lithium’s Growing Importance and Its Influence on Economic Growth

By A.R Chaudhary   02/16/21  
The transition to renewable energy is happening at a large scale globally, and without lithium, it is almost impossible. The demand for lithium is expected to reach 117 kilotons by 2024.
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