Ukraine’s Solar-Plus-Storage Auction Oversubscribed as Standalone Solar Falls Short

Ukraine’s state-owned Guaranteed Buyer ran two renewable energy auctions on September 25, 2026, with sharply different results: a 50 MW standalone solar tender drew bids for less than 80% of the available capacity, while a companion 100 MW solar-plus-storage auction attracted nearly four times as much interest as it could accommodate. The Solar Energy Association of Ukraine, which tracks the results, reported that the standalone lot received just three bids from two companies for 38.99 MW combined, while the storage-paired lot drew 26 bids totaling 385.9 MW.

Two auctions, two very different appetites

The standalone solar auction capped bids at €0.08 per kilowatt-hour and produced winning offers averaging €0.076/kWh, ranging from €0.0730 to €0.0799/kWh, filling roughly 78% of the 50 MW on offer. The solar-plus-storage auction, with a higher price cap of €0.12/kWh reflecting the added cost of battery capacity, drew developer interest worth more than three-and-a-half times the 100 MW available. The gap suggests Ukrainian developers currently see more value, or lower risk, in projects paired with storage than in standalone generation, a preference that lines up with the country’s wartime grid conditions more than with normal market economics alone.

Solar as a hedge against a grid under attack

Russian strikes on centralized power infrastructure have cut Ukraine’s available generation capacity from a pre-war requirement of around 18 GW to roughly 11.5 GW as of early 2026, pushing utilities and developers toward smaller, distributed sources that are harder to knock out in a single attack than a large thermal or nuclear station. Solar capacity has grown accordingly: the Solar Energy Association of Ukraine estimates the country added about 1.5 GW of new solar in 2025, nearly double the prior year’s total, and expects 2026 to at least match that pace, with roughly 1.1 GW already added in the first half of the year. Battery storage has followed a similar trajectory, with an estimated 1.6 to 1.9 GWh added in the first half of 2026 and a full-year outlook of around 3.2 GWh, a build-out that directly supports the kind of solar-plus-storage projects that dominated this week’s oversubscribed auction.

Part of a broader pattern of European energy stress

Ukraine’s push toward distributed, resilient generation is playing out alongside a difficult winter outlook across the wider European gas and power market. European gas storage has been running well below its five-year seasonal average heading into the cold months, a gap that Norwegian supply cuts have made worse by pushing UK and continental gas prices sharply higher. Ukraine’s own energy sector remains directly exposed to the wider war, including strikes on Russian refining capacity that have periodically disrupted fuel flows on both sides of the front; Ukrainian drone strikes have knocked out Russian refineries at Perm and Novoshakhtinsk in the same period Kyiv has accelerated its own renewable buildout at home.

What the pricing signals for Ukraine’s power market

The undersubscribed standalone auction and the oversubscribed storage-paired one, run under the same procurement mechanism on the same day, offer a rare direct comparison of what Ukrainian developers are willing to bid for one type of project over another right now. With centralized generation capacity still well below pre-war levels and no clear end in sight to the strikes that keep it that way, the stronger demand for storage-backed solar suggests the market increasingly prices in the value of supplying power through outages rather than simply adding megawatts to a grid that can still be knocked offline at any of its remaining large nodes.

Sources

• pv magazine Global, “Ukraine’s solar auction undersubscribed, solar-plus-storage auction oversubscribed,” September 29, 2026 — auction results, bid counts, price ranges for both tenders. pv-magazine.com
• Solar Energy Association of Ukraine, auction announcement and results tracking — official auction structure and price caps. aseu.org.ua
• ESS News, “Ukraine adds between 1.6-1.9 GWh of energy storage in H1 2026,” September 28, 2026 — storage build-out figures and full-year outlook. ess-news.com
• pv magazine Global, “Ukraine adds 1.1 GW of solar in H1,” September 23, 2026 — first-half 2026 solar additions and 2025 comparison. pv-magazine.com

Illustrative image. Photo: kallerna, CC BY-SA 4.0, via Wikimedia Commons — source