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With declining technology costs and increasing renewable deployment, energy storage is poised to be a valuable resource on future power grids — but what is the total market potential for storage technologies, and what are the key drivers of cost-optimal deployment?

In the latest report from the Storage Futures Study (SFS), Economic Potential of Diurnal Storage in the U.S. Power Sector, NREL analysts Will Frazier, Wesley Cole, Paul Denholm, Scott Machen, and Nate Blair, describe significant market potential for utility-scale diurnal storage (up to 12 hours) in the U.S. power system through 2050. They found storage adds the most value to the grid and deployment increases when the power system allows storage to simultaneously provide multiple grid services and when there is greater solar photovoltaic (PV) penetration.

“We find significant market potential for diurnal energy storage across a variety of modeled scenarios, mostly occurring by 2030,” said Will Frazier, National Renewable Energy Laboratory (NREL) analyst and lead author of the report. “To realize cost-optimal storage deployment, the power system will need to allow storage to provide capacity and energy time-shifting grid services.”

The SFS — led by NREL and supported by the U.S. Department of Energy’s (DOE’s) Energy Storage Grand Challenge — is a multiyear research project to explore how advancing energy storage technologies could impact the deployment of utility-scale storage and adoption of distributed storage, including impacts to future power system infrastructure investment and operations.

Expanded Capabilities to Model Storage Potential

For this work, researchers added new capabilities to NREL’s Regional Energy Deployment System (ReEDS) capacity expansion model to accurately represent the value of diurnal battery energy storage when it is allowed to provide grid services — an inherently complex modeling challenge. Cost and performance metrics focus on Li-ion batteries because the technology has more market maturity than other emerging technologies. Because the value of storage depends greatly on timing, ReEDS simulated system operations every hour.

NREL researchers used ReEDS to model two sets of scenarios — one that allows storage to provide multiple grid services and one that restricts the services that storage can provide. All the scenarios use different cost and performance assumptions for storage, wind, solar PV, and natural gas to determine the key drivers of energy storage deployment.

Installed Storage Capacity Could Increase Five-Fold by 2050

Across all scenarios in the study, utility-scale diurnal energy storage deployment grows significantly through 2050, totaling over 125 gigawatts of installed capacity in the modest cost and performance assumptions — a more than five-fold increase from today’s total. Depending on cost and other variables, deployment could total as much as 680 gigawatts by 2050.

Chart courtesy of NREL — grid-scale U.S. storage capacity could grow five-fold by 2050.

Chart courtesy of NREL — grid-scale U.S. storage capacity could grow five-fold by 2050.

“These are game-changing numbers,” Frazier said. “Today we have 23 gigawatts of storage capacity, all of which is pumped-hydro.”

Initially, the new storage deployment is mostly shorter duration (up to 4 hours) and then progresses to longer durations (up to 12 hours) as deployment increases, mostly because longer-duration storage is currently more expensive. In 2030, annual deployment of battery storage ranges from 1 to 30 gigawatts across the scenarios. By 2050, annual deployment ranges from 7 to 77 gigawatts.

System Flexibility Key to Storage Deployment

To understand what could drive future grid-scale storage deployment, NREL modeled the techno-economic potential of storage when it is allowed to independently provide three grid services: capacity, energy time-shifting, and operating reserves.

  • Blue — Energy Time-Shifting & Operating Reserves (No Firm Capacity From Storage)
  • Black — Firm Capacity & Energy Time-Shifting (No Operating Reserves From Storage)
  • Green — Firm Capacity & Operating Reserves (No Energy Time-Shifting From Storage)

NREL found not allowing storage to provide firm capacity impacts future deployment the most, although not allowing firm capacity or energy time-shifting services can also substantially decrease potential deployment. Operating reserves, on the hand, do not drive the deployment of storage within the study because they find limited overall market potential for this service.

Storage and Solar Symbiosis

Multiple NREL studies have pointed to the symbiotic nature of solar and storage, and this study reinforces that relationship. More PV generation makes peak demand periods shorter and decreases how much energy capacity is needed from storage — thereby increasing the value of storage capacity and effectively decreasing the cost of storage by allowing shorter-duration batteries to be a competitive source of peaking capacity. NREL found over time the value of energy storage in providing peaking capacity increases as load grows and existing generators retire.

Solar PV generation also has a strong relationship with time-shifting services. More PV generation creates more volatile energy price profiles, increasing the potential of storage energy time-shifting. Like peaking capacity, the value of energy time-shifting grows over time with increased PV penetration.

Next Up in the Storage Futures Study

The SFS will continue to explore topics from the foundational report that outlines a visionary framework for the possible evolution of the stationary energy storage industry — and the power system as a whole.

The next report in the series will assess customer adoption potential of distributed diurnal storage for several future scenarios. The study will also include the larger impacts of storage deployment on power system evolution and operations.

Visit the Storage Futures Study page for more information about the broader study, and learn more about NREL’s energy analysis research.

Learn More in June 22 Webinar

Join a webinar from 9 to 10 a.m. MT on Tuesday, June 22, to learn more about SFS results with Will Frazier and Nate Blair and hear from SFS analyst Paul Denholm on the visionary framework for the possible evolution of the stationary energy storage industry, outlined in the first report in the series. Register to attend.

Article courtesy of NREL, the U.S. Department of Energy.

Image courtesy of 8minute Solar Energy, plus Energy storage project.


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MAN Trucks CEO: an electric semi will pay for itself in three years (*)

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MAN Trucks CEO: an electric semi will pay for itself in three years (*)

Alexander Vlaskamp, the outspoken CEO of MAN Trucks, claims that an electric semi truck can pay for itself in less than three years – but there are a few asterisks in that statement. We’ll try to unpack them all for you here.

MAN began series production of its eTruck electric semi in July on a flexible line capable of building up to 100 trucks per day with either diesel or battery-electric power. With production underway, the challenge now is selling the things. That means proving that the higher upfront cost pays off with a lower total cost of ownership (TCO), and the first stop on that train is incentives.

The good news is that, in the EU, incentives are plentiful. MAN says those programs, together with Europe’s much higher diesel prices compared to the US (about $6.80/gal compared to $3.70, as I type this), can help the eTruck pay for itself in as little as two and a half years.

And, if you’re not familiar with European incentives for electric semi trucks, hold on to your hats because they are wild:

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  • up to 80% of vehicle purchase price subsidy in Austria (ENIN)
  • in Belgium, there’s a subsidy for up to 32% of the price of the truck (up to 2 trucks per company)
  • in Ireland, government incentives cover 30–60% of the up-front cost difference versus a comparable diesel truck
  • Norway offers a similar 60% diesel cost difference incentive
  • etc., etc., ad nauseam

MAN’s customers can do that math easily enoughthe company says it already has 700 orders on the books already, and expects to hit 1,000 by year’s end. But that math only maths if those customers can actually access the electrons to replace all that diesel … and the charging infrastructure they’re going to need for all those trucks? That’s still a ways off.

“It’s all about the charging infrastructure, that’s the problem,” Vlaskamp told Börsen-Zeitung. “When it comes to investment in charging stations, Europe is lagging far behind … what’s needed now is the political will to reverse this trend,” adding, “We need to act quickly.”

Charging is key


MAN electric truck charging
Charging an eTruck; via Man Trucks.

Spanish-language site Motorpasión notes that red tape isn’t the only reason charging lags. Driving investment into new charging infrastructure is lagging, too – but MAN’s CEO thinks there’s a simple fix: take half of annual toll revenues generated by commercial trucks (around €7 billion in Germany, alone) and funnel it directly into DC fast charging.

In addition to the still deficient charging network, another obstacle is the cost of electricity for charging. Vlaskamp proposes a reduced price for commercial truckers, as has traditionally been the case with diesel. Currently, the average price is 45 to 50 cents per kWh, but says the ideal would be, “between €0.20 and €0.30/kWh.”

TL;DR: if charging was cheaper and easier to access and the government was willing to subsidize EVs as much as they’ve subsidized oil with the creating and ongoing support of a globalized military industrial complex, MAN Trucks’ CEO thinks plug-in semis would be a no-brainer.

Head on down to the comments and let us know if you agree.

SOURCE | IMAGES: MAN, via Börsen-Zeitung, Motorpasión.


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Celebrate Labor Day with these awesome (electric) work truck deals

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Celebrate Labor Day with these awesome (electric) work truck deals

It’s Labor Day weekend, which means big deals on car lots across America – especially if you’re shopping for a new electric vehicle to help with your labor. We’ve rounded up the best offers on electric pickups, vans, and even a great option for ride share drivers!

Sure, there’s a bit of irony in pitching “work vehicles” on a holiday meant for not working – but for many small business owners, work is part of who they are. And with the $7,500 federal EV tax credit set to expire, plus a wave of great Labor Day deals on work-ready EVs, now might be the best time yet to plug into a new electric ride.

Here are some of the standout electric vehicles offers we found this Labor Day weekend (2025), organized by vehicle type.

Electric pickup | F-150 Lightning


2023 Ford F-150 Lightning Is Cheaper To Lease Than Its ICE-Powered F-150 Sibling
F-150 Lightning; via Ford.

The “Ford for America,” summer sales event continues through Labor Day with interest-free 0% financing, $0 down payment, and zero payments for up to 90 days for retail customers. Ford is also throwing in $0 maintenance for 24 months.

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But wait, there’s more! Ford Authority is reporting that a complimentary home charger and standard installation might also be included as part of the Ford Power Promise promotion happening at participating dealers in select markets with the purchase of a new F-150 Lightning pickup through the end of September.

Lease customers aren’t being left out, either. You can lease a 2025 Ford F-150 Lightning XLT 4P 311A pickup at $399 per month for 36 months, with “just” $399 due at signing (basically your first month’s payment).

Electric van | Chevy Brightdrop


Chevrolet Brightdrop ZEVO; via GM.

The best electric vehicle deal in the business keeps on truckin’ into Labor Day weekend, with new 2025 Brightdrop models currently eligible for up to $21,500 in manufacturer rebates before any Federal, state, local utility, or even Costco membership incentives kick in.

For your money, you get a capable, Ultium-based electric cargo van with more room than your college dorm and a nationwide dealer network to keep it up and running when you need it most.

Electric van (hon. mention) | Mercedes eSprinter


2024 eSprinter; via Mercedes-Benz.

Despite being based on the company’s existing diesel platform, Mercedes’ eSprinter has proven itself a capable urban hauler in the hands of Amazon, DHL, and countless European tradespeople. Despite that, there are still a handful of leftover 2024 models hanging around dealer lots – enough that Mercedes is offering up to $30,000 (!) Customer Cash on any new ’24MY eSprinter purchased from dealer stock.

That discount is enough to bring the price of this 2024 eSprinter in Chicago from $87,823 all the way down to $57,823 this Labor Day weekend – and that’s before you factor in state and local utility incentives that can bring the price down even further.

As you can imagine, there’s some fine print on that Customer Cash deal. It can’t be combined with Special APR programs through Mercedes-Benz Financial Services (MBFS), but it can be combined with the Mercedes-Benz Commercial Vehicles Medium Fleet Program.

Ride share ride | VW ID.4


Volkswagen-ID.4-lease-deal
VW ID.4 AWD Pro S; via Volkswagen.

Ride share drivers looking for comfortable seats, room for five adults and their luggage, proven battery life, and lickety-quick charging speeds can stop looking. Volkswagen is offering a sweet ID.4 lease at nearly half the cost of an entry-level Jetta with payments starting at just $129/mo. – that’s despite the ID.4 carrying a significantly higher MSRP.

And, while we’re at it, it’s probably worth noting that serious road warriors will probably save more than $129/mo. in fuel alone.

If you prefer to own your vehicles after making payments on them for a few years, you can also get 0% interest financing on select ID.4s for up to 72 months. It’s important to note here that Volkswagen’s deals can vary wildly by region. That $129/mo. offer is available in California and a few other West Coast states, for example, but the electric crossover’s listed at $329 for 24 months with $4,499 due at signing in others.

Disclaimer: the vehicle models and financing deals above were sourced from CarsDirectCarEdge, and (where mentioned) the OEM websites – and were current as of 29AUG2025. These deals may not be available in every market, with every discount, or for every buyer (the standard “with approved credit” fine print should be considered implied). Check with your local dealer(s) for more information.

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Denver Public Library deploys novel solar and battery storage system

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Denver Public Library deploys novel solar and battery storage system

Sustainable construction experts McKinstry have teamed up with leading BESS developers Viridi and the Denver Public Library to deploy a first-of-its-kind solar and battery storage system that sets a new standard for fire safety.

The Denver Public Library sought a battery energy storage system (BESS) that could deliver cost savings without compromising safety for staff, visitors, or the architecturally significant, Michael Graves–designed structure itself. That required a battery backup solution that not only met the city’s fire safety standards, but also addressed public fears about the risk of lithium-ion battery fires.

That unique set of project priorities led the library to Viridi, makers of the RPSLinkEX battery solution that’s equipped with a unique, “passive Fail-Safe thermal management and anti-propagation technology” designed to prevent the sort of thermal runaway that leads to li-ion battery fires.

“Public facilities like the Denver Public Library are at the forefront of demonstrating that energy resilience and safety can go hand in hand,” said Jon M. Williams, CEO at Viridi. “This installation highlights how fail-safe battery storage can empower communities to maximize renewable energy, reduce costs, and maintain reliability – all without compromise.”

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Keeping it safe


Denver Public Library; by Michael Graves.
Denver Public Library; by Michael Graves.

Viridi doesn’t talk too much about how its passive Fail-Safe thermal management system works, but if you’re picturing heat-dissipating layers, fire-resistant insulation, and strategically-placed phase change materials (or PCMs) limiting the transfer of heat from one cell to another if it begins to overheat, you’ve probably cracked it.

These passive safety features enable safer deployment scenarios in occupied buildings or near critical infrastructure by reducing dependence on active fire suppression systems like sprinklers or fire extinguishers, and convinced the City of Denver to move forward with the project, which is the city’s first-ever solar + battery storage system.

“The entire McKinstry team is very excited about developing and constructing the first Solar + BESS project for the City and County of Denver,” said Jon Ensley, Sr. Construction Project Engineer at McKinstry. “We are appreciative of all our partners and stakeholders who helped to achieve this goal. We value Viridi’s expertise in deploying this technology and the whole team has been great to work with.”

McKinstry says this latest solar project sets, “a new benchmark for how cities can combine renewable energy and battery storage without compromising safety.” And, with solutions like the RPSLinkEX building systems that meet city planners and politicians where they are, instead of trying to educated them about the objective, proven safety of li-ion batteries, Viridi is helping communities adopt cleaner, more resilient clean energy solutions sooner rather than later.

READ MORE

SOURCE | IMAGES: Viridi, via PV Magazine; Michael Graves.


If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them. 

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