ADS-TEC Energy Advances One of Europe’s Largest Battery Storage Projects as Building Permit Nears

NÜRTINGEN, Germany & MARKGRÖNINGEN, Germany--(BUSINESS WIRE)--Oct 28, 2026--

ADS-TEC Energy PLC (NASDAQ: ADSE), a specialist in battery-based energy storage and fast-charging solutions, today announced that the permitting authority has confirmed that all application documents for its battery energy storage power plant at the Pulverdingen substation are complete. The building permit is expected shortly. With a planned power output of approximately 1 gigawatt (GW) and storage capacity of 4 gigawatt hours (GWh), the facility is intended to become one of the largest battery storage systems in Europe.

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Power-plant scale

One gigawatt is roughly equivalent to the output of a large coal-fired or nuclear power plant, or of 250 wind turbines. The battery power plant is designed to deliver this output for approximately four hours, which corresponds to the daily electricity consumption of around 400,000 single-family homes or 800,000 apartments. Investment in a facility of this scale typically ranges from the high hundreds of millions to around EUR 1 billion.

Financial significance for ADS-TEC Energy

From 2029 onwards, the facility has the potential to become a long-term value driver for ADS-TEC Energy in three ways: through the proprietary battery management technology deployed in the plant, through technical services over its operating life, and through a continuing stake in the project company. According to third-party market data, large-scale battery storage systems in Germany have recently achieved revenues of approximately EUR 150,000 to 250,000 per megawatt per year from wholesale trading and balancing markets. [1] Such revenues accrue at plant level and are shared among the owners of the project company. ADS-TEC Energy’s share will depend on the outcome of the investor process, the final partnership structure and future market conditions. These figures are not a forecast and do not constitute financial guidance.

A flagship project for the region and for Germany as a business location

The project is a flagship from the region, for the region and far beyond. Large-scale battery storage systems are in the overriding public interest and support the implementation of the German federal government’s electricity storage strategy.

“A project of this size requires staying power. I am proud that we can build in Markgröningen, and above all of our team, which has spent years preparing this project. Energy is the foundation for everything we produce in Europe. Anyone who does not control the infrastructure for it gives up part of their ability to act. With our own technology and renowned European partners, we are demonstrating that Europe can plan, build and operate critical energy infrastructure on this scale on its own. We owe the fact that a storage power plant of this size and relevance can be built in Baden-Württemberg to the local landowners, the strong local community, the public authorities and the state government, as well as to our good cooperation with the grid operator,” said Thomas Speidel, founder and CEO of ADS-TEC Energy.

European partners and full technology control

From the outset, ADS-TEC Energy has developed this project with strong European partners. Renowned German companies and leading corporations are ready to supply batteries, electrical switchgear, transformers and extra-high-voltage equipment. The batteries will run on ADS-TEC Energy’s proven proprietary battery management systems, whose electronics and software the company has developed and deployed in-house for more than 15 years. This reduces reliance on battery management suppliers, which are typically based in Asia, and supports local control over software, IT security and associated data.

Storage as the backbone of a renewable grid

Battery storage power plants do not generate electricity; they make it available when it is needed. The facility will absorb power when generation exceeds demand, for example at midday when solar output peaks or during periods of strong wind, and release it within fractions of a second when supply tightens. In day-to-day operation, it will typically run at partial load and adapt dynamically to grid requirements. It will also stabilize grid frequency, absorb load peaks and can support grid restoration after a power outage.

Today, surplus wind and solar power often has to be curtailed or exported at negative prices, only for supply to fall short a few hours later, when other power plants must step in. The storage system will shift this surplus into the hours when it is needed most. The result: less strain on the grid, fewer interventions by grid operators and a more robust and affordable power supply in Baden-Württemberg.

Rising demand for flexibility

Wind and solar generation is inherently variable, while electricity demand continues to grow, driven by electric vehicles, heat pumps and data centers, and fluctuates significantly throughout the day. Large-scale storage bridges this gap and makes a physical contribution to the stability of the power system. This role becomes ever more critical as the economy and everyday life increasingly depend on electricity.

Critical infrastructure built to last

The facility is designed to operate for decades. Beyond developing and building the plant, ADS-TEC Energy will provide technical services to ensure operational reliability and availability over the long term. The power plant is to be operated primarily together with partners from the European energy sector. Emerging flexibility markets will allow the plant to be marketed on the basis of its physical characteristics, and with full in-house capabilities across hardware and software, ADS-TEC Energy is well positioned to adapt the facility to evolving market conditions and new business models.

ADS-TEC Energy is currently in negotiations with potential investors and strategic partners. The building permit is a key prerequisite for concluding the financing and partnership agreements.

While a partner from the European energy sector is preferred, talks are also being held with renowned international infrastructure investors. ADS-TEC Energy intends to sell a majority stake in the project company while remaining a long-term project partner.

About ADS-TEC Energy

With nearly 15 years of experience in lithium-ion technologies, ADS-TEC Energy develops and manufactures battery storage solutions and fast-charging systems, including the associated energy management systems.

Headquartered in Nürtingen, Baden-Württemberg, the company supports industrial companies, energy utilities and mobility providers in implementing modern energy solutions.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, including statements regarding the expected building permit, the project timeline, financing and partnerships, the facility’s anticipated capabilities and benefits, and the potential financial contribution of the project. These statements are based on current expectations and assumptions and are subject to risks and uncertainties, many of which are beyond ADS-TEC Energy’s control, that could cause actual results to differ materially. Market data cited in this press release is based on third-party sources and does not represent forecasts or guidance by ADS-TEC Energy. Further information on risks is contained in ADS-TEC Energy’s filings with the U.S. Securities and Exchange Commission. ADS-TEC Energy undertakes no obligation to update any forward-looking statement, except as required by law.

For more information, visit: www.ads-tec-energy.com

[1] Modo Energy, ME vBESS DE (2h) benchmark for Germany, monthly results June to September 2026 (between EUR 191,000 and 230,000 per MW per year, annualized; simulated revenues of a two-hour reference battery, net of charging costs and before operating costs):

June 2026: https://modoenergy.com/research/germany-bess-benchmark-de-me-bess-de-2h-ancillary-price-afrr-fcr-increase-heatwave-hitzeflaute-day-ahead-price-spikes-june-2026

July 2026: https://modoenergy.com/research/en/germany-revenue-bess-benchmark-july-2026-summer-solar-spreads-afrr-fcr-day-ahead-scarcity

August 2026: https://modoenergy.com/research/en/germany-bess-benchmark-revenues-me-vbess-de-august-2026-day-ahead-spreads-gas-prices-wind-solar-production-afrr-fcr-prices

September 2026: https://modoenergy.com/research/English/germany-bess-revenue-benchmark-me-vbess-de-september-2026-gas-prices-afrr-saturation

Methodology: https://modoenergy.com/benchmarking/methodology/germany

All accessed October 28, 2026.

ADS-TEC Energy Headquarter Nuertingen

NEW YORK (AP) — The bond market is swinging Wednesday, while U.S. stocks hold relatively steady after the Federal Reserve decided not to raise its main interest rate to bring down high inflation. The bond market's moves indicated traders see less of a chance of hikes to rates in the future, which would help with inflation but also hurt the economy.

The S&P 500 rose 0.2% and pulled within 1% of its all-time high, which was set earlier this month. The Dow Jones Industrial Average was up 84 points, or 0.2%, with an hour remaining in trading, and the Nasdaq composite was 0.1% higher.

The action was much stronger in the bond market, where the yield on the two-year Treasury initially climbed after the Fed announced its decision to hold rates steady. It got above 4.79% after the Fed said two officials had actually voted to raise the federal funds rate, though their peers outweighed them.

The central bank last month raised its main interest rate for the first time in three years in hopes of slowing the high inflation that's discouraging Americans broadly.

But the two-year yield, which closely tracks expectations for Fed action, quickly dropped as low as 4.69% after Fed Chairman Kevin Warsh said the central bank wants to take time to see how conditions play out before making its next move on rates.

He pointed to how rates for loans going to businesses and others across the economy have already climbed recently and how lenders and investors have become “more discerning.” That “monetary medicine” is “starting to work some,” he said.

Along with signals that the U.S. economy continues to grow, Warsh said that “broadly, these developments go in the direction” of helping with the Fed's two goals of a healthy economy and relatively low inflation.

Traders on Wall Street still see further increases to rates as likely, but they pared back bets on how many may come by next summer, according to data from CME Group.

Higher rates also push downward on stock prices, which raises the pressure on companies to deliver big growth in profits to counteract that. Several companies rallied Wednesday after joining the list of those beating analysts’ expectations for the summer.

GE HealthCare Technologies jumped 6.7% after delivering both profit and revenue for the summer that surpassed analysts’ expectations. It also raised its forecasts for revenue growth and other financial measures for the full year.

Etsy climbed 5.9% after its profit for the latest quarter blew past analysts’ forecasts. CEO Kruti Patel Goyal said the online marketplace saw growth in active buyers from prior-year levels for the first time in two years, while its active seller base grew at its fastest rate in two years.

Stocks in the artificial-intelligence industry were also relatively solid. They’ve stabilized this week following big swings on worries that high borrowing costs will undercut the boom in AI data centers largely built with borrowed money.

AI stocks got an additional boost after a major player in the industry, South Korea’s SK Hynix, soared 10.9% in Seoul following its latest profit report. The seller of memory chips said it’s in the midst of a virtuous cycle of rising AI usage, and it expects demand to continue to outpace supply through 2030.

On Wall Street, Micron Technology rose 5.8% and was the strongest force lifting the S&P 500. It also sells memory for computers.

Outside of tech, Wendy's jumped 14.6% to $7.04 after Trian Fund Management, run by investor Nelson Peltz, offered to buy the chain for $7.35 per share in cash.

That helped offset a drop for Boston Scientific, which fell 4.2% even though the seller of medical devices reported a milder drop in profit for the latest quarter than analysts expected. It gave a forecast for profit in the current quarter that fell short of analysts’ expectations.

Robinhood Markets sank 3.6% after reporting weaker profit and revenue for the latest quarter than analysts expected.

In stock markets abroad, South Korea’s Kospi jumped 6.6% following SK Hynix’s leap. Japan’s Nikkei 225 rose 1.1%, while France’s CAC 40 edged down by less than 0.1%.

AP Writer Elaine Lai contributed to this report.

FILE - Traders Joseph Stevens, left, and Robert Arciero work on the floor of the New York Stock Exchange, Monday, Feb. 2, 2026. (AP Photo/Richard Drew, file)

FILE - Trader Daniel Kryger works on the floor of the New York Stock Exchange, Monday, Feb. 2, 2026. (AP Photo/Richard Drew, File)

Employees work near the screens showing the Korea Composite Stock Price Index (KOSPI), the foreign exchange rate between the U.S. dollar and the South Korean won, and the Korea Securities Dealers Automated Quotations at a dealing room of Hana Bank in Seoul, South Korea, Wednesday, Oct. 28, 2026. (AP Photo/Lee Jin-man)

A dealer stands near the screens showing the Korea Composite Stock Price Index (KOSPI) and the foreign exchange rate between the U.S. dollar and the South Korean won in a dealing room of Hana Bank in Seoul, South Korea, Wednesday, Oct. 28, 2026. (AP Photo/Lee Jin-man)

A dealer walks near the screen showing the Korea Composite Stock Price Index (KOSPI) in a dealing room of Hana Bank in Seoul, South Korea, Wednesday, Oct. 28, 2026. (AP Photo/Lee Jin-man)