Ukraine says it obtained Russian plans for winter strikes on energy infrastructure, details defensive preparations

Why it matters

The alleged leaked documents reportedly give Ukraine advance visibility into specific targets, weapon types and munition allocations, allowing more targeted defensive preparation and faster restoration planning. Ukraine has framed this as both an intelligence success and a justification for hardened infrastructure: more than 200 concrete shelters, anti-drone screens and nets, and a tripling of restoration reserves compared with last winter. At the same time, Shmyhal's relatively measured assessment that the winter 'should not be harder than the previous one' stands in contrast with the UN and UNDP, which describe the coming months as potentially the hardest since the start of the full-scale invasion. President Zelensky's UNGA warning of reciprocal deep strikes signals that energy warfare is being explicitly tied to deterrence.

What happened

Energy Minister Denys Shmyhal said Ukrainian special services obtained two large Russian documents describing Moscow's strike plans against Ukrainian energy infrastructure for the coming winter. The documents set out targets — heat and water supply, sewage, electricity generation, and interconnectors linking Ukraine to Europe and crossing the Dnipro — and contain tables specifying the quantity and type of weapons needed for each target, ranging from ballistic missiles to jet-powered and conventional drones. Separate Russian plans target large cities including Kyiv, Kharkiv and Odesa, as well as cities with populations over 500,000.

Ukraine has built more than 200 concrete shelters over priority energy facilities and is installing pre-detonation screens and anti-FPV-drone nets. Together with partners, Ukraine is stockpiling restoration equipment such as insulators, cables and switches, aiming for a triple reserve compared with last winter. Shmyhal said air defence currently provides about 90% protection but the remaining 10% still causes damage given the volume of incoming missiles and drones. He added that Ukraine's deep strikes against Russia will continue if Russia attacks Ukrainian infrastructure.

The international support framework has expanded: more than 40 countries have joined the 'energy Ramstein' initiative, the Energy Support Fund has raised more than $2.1 billion over three years (including $545 million this year and €305 million in confirmed commitments), and partners have delivered more than 33,000 tonnes of equipment since the fund began operating. On 23 September, President Volodymyr Zelensky told the UN General Assembly that Russia will face a painful winter if it continues striking Ukraine's energy system.

How Ukrainian sources describe it

Ukrainian media presented Shmyhal's disclosures as the central narrative, foregrounding the intelligence success of obtaining the Russian strike plans and describing them as evidence of Russia's 'cold terrorist calculation.' Coverage emphasised concrete defensive measures — over 200 shelters, anti-drone netting, and tripled restoration reserves — alongside the 'energy Ramstein' funding figures, presenting Ukraine as actively prepared. Shmyhal's optimistic framing, that the winter 'should not be harder than the previous one,' was carried alongside Zelensky's UNGA warning of reciprocal pain for Russia, together depicting Ukraine as both ready and willing to retaliate against continued attacks on its energy system.

Where reporting differs

Shmyhal assessed that the upcoming winter 'will not be easy but should not be harder than the previous winter,' while UNDP Administrator Alexander De Croo said Ukraine faces the 'hardest winter' since the start of the full-scale invasion and the UN Independent International Commission of Inquiry said the coming winter could be even harder to endure.

Separately, Donald Trump said on 14 September that Ukraine and Russia had allegedly reached an agreement on mutual cessation of strikes on energy facilities. The Financial Times, citing sources, reported that Vladimir Putin does not intend to conclude an energy ceasefire agreement before winter.

Background

The UN reported that during winter 2025–2026, with temperatures down to minus 20°C, Russian strikes damaged or destroyed energy installations, power lines, heating facilities and gas infrastructure, leaving millions of Ukrainians without power or heating. On 14 September, Trump said Ukraine and Russia had allegedly reached an agreement on mutual cessation of strikes on energy facilities, and Zelensky said Ukraine is ready to refrain from striking Russian energy infrastructure if partners guarantee reciprocal non-strikes. The Financial Times cited sources saying Putin does not intend to conclude an energy ceasefire before winter. On 22 September, Zelensky told Trump at the UN General Assembly that he hoped the war could be ended before winter. More than 40 countries have joined the 'energy Ramstein' initiative, the Energy Support Fund has raised more than $2.1 billion over three years with $545 million this year and €305 million in confirmed commitments, and partners have delivered more than 33,000 tonnes of equipment since the fund began operating.