In March 2026, the European Commission quietly approved something that could reshape the economics of grid-scale battery storage across Central and Eastern Europe. Romania won the green light for a \u20ac150 million subsidy scheme to fund standalone battery storage, and it became the country’s first measure approved under the EU’s new Clean Industrial Deal State Aid Framework, known as CISAF.<\/p>\n
For developers, investors, and energy traders watching the region, this is not just another grant announcement. The tender that follows will help set the benchmark for how storage projects get financed, priced, and returned across CEE over the next two years. Here is what is actually in the scheme, why the timing matters, and why Romania has quietly become one of the most compelling storage markets in Europe.<\/p>\n
The structure is specific, and the details are where the opportunity lives.<\/p>\n
The scheme allocates \u20ac150 million (around RON 764 million) to support the installation of at least 2,174 MWh of new standalone battery energy storage capacity. The money comes from the EU Modernisation Fund, and beneficiaries are selected through a competitive tender rather than first come, first served.<\/p>\n
The headline terms set the commercial frame. Support is capped at roughly \u20ac69,000 per MWh of installed storage capacity, funding per project is capped at \u20ac15 million, and aid can cover up to 100 percent of eligible costs. Crucially, the support targets standalone systems, batteries that stand on their own rather than being bolted onto an existing wind or solar plant, which gives operators full flexibility to chase the most valuable revenue streams on the grid.<\/p>\n
Energy Minister Bogdan Ivan confirmed that the call for projects is set to launch in the second quarter of 2026, with investments to be implemented by the end of 2030. That timeline is the reason this tender matters now. The projects bidding in 2026 are the projects that will define the market’s risk and return profile through 2027 and 2028.<\/p>\n
To understand why this approval is significant, you have to understand the framework behind it.<\/p>\n
CISAF, the Clean Industrial Deal State Aid Framework, was adopted by the European Commission on 25 June 2025 and runs until 31 December 2030. It replaced the older Temporary Crisis and Transition Framework that had been introduced in response to the energy shock following Russia’s invasion of Ukraine. Where the old framework was about crisis response, CISAF is about building a competitive, net-zero industrial base, and it deliberately simplifies and speeds up the rules for state support of clean energy, including electricity storage.<\/p>\n
In practical terms, CISAF gives member states a faster, more predictable, and more flexible route to channel public money into decarbonisation. Romania moving first to use it for battery storage is a signal of intent. It tells the market that the country intends to be an early and aggressive adopter of the tools the EU has just made available, and that storage sits near the top of its priority list.<\/p>\n
Subsidies alone do not make a market. What makes Romania interesting is that the grant sits on top of unusually strong underlying commercial fundamentals.<\/p>\n
Romania’s wholesale power market has shown some of the widest daily price spreads in the EU, with reported average daily spreads around \u20ac168 per MWh in 2025. That spread is the raw material of battery arbitrage revenue: buy cheap when solar floods the grid at midday, sell high in the evening peak. A wide and volatile spread is exactly the environment in which batteries earn their best returns.<\/p>\n
On top of arbitrage, there is a fast-developing market for ancillary and balancing services. Batteries can be paid by the transmission operator Transelectrica to provide frequency response and balancing, services that keep the grid stable as variable renewables scale up. Recent large projects in Romania are being built around precisely this mix of merchant arbitrage and balancing revenue, sometimes structured through optimisation agreements with regional energy traders.<\/p>\n
The subsidy reduces upfront capital cost, the arbitrage spread drives the trading margin, and the balancing market adds a second revenue layer. For investors modelling returns, that combination is rare in a single market. It is why developers including R.Power, Premier Energy, Aukera, Nova Power & Gas, and Renalfa have all moved on Romanian storage assets, and why backers like the EBRD are financing large standalone projects in the country.<\/p>\n
The case for Romania as a leading CEE storage market is not just about one subsidy. Several structural factors line up.<\/p>\n
A renewables boom that needs storage.<\/strong> Romania’s updated National Energy and Climate Plan targets 38.3 percent renewables in final energy consumption by 2030. The country has been through a solar and wind buildout that has outpaced its grid, and that mismatch is the core driver of demand for batteries. Without storage, renewable energy is wasted through curtailment or pushed onto the grid during hours when prices turn negative.<\/p>\n A grid that urgently needs flexibility.<\/strong> Transelectrica has signalled that Romania needs large-scale storage to maintain frequency stability and reduce blackout risk as renewables grow. Curtailment of renewable output reached around 150 GWh in 2024 and is projected to rise without intervention. Storage is not a nice-to-have here. The system operator is effectively calling for it.<\/p>\n Strong policy momentum and stacked funding.<\/strong> The \u20ac150 million CISAF scheme is one of several support mechanisms. Romania’s National Recovery and Resilience Plan has already funded multiple storage projects, and in late 2025 the government launched a separate \u20ac150 million programme aimed at adding 385 MW of municipal battery capacity. From January 2026, a new capacity auction for grid connection replaced the old first come, first served system, a reform aimed at bringing more order to a crowded development pipeline. The direction of travel is consistent: more storage, faster.<\/p>\n A market that is already proving itself.<\/strong> Real assets are now operating. Nova Power & Gas commissioned a 201 MW \/ 402 MWh facility, the largest standalone system in the country, and has plans for substantially more. Projects in the 250 MW to 500 MWh range and beyond have been announced and financed. This is no longer a paper market, and the commercial viability of Romanian storage is being demonstrated in real time.<\/p>\n Put together, a renewables surplus that needs balancing, a grid operator asking for storage, the widest arbitrage spreads in the EU, a developing balancing market, and now a CISAF-backed subsidy create a credible case that Romania is one of the best-positioned storage markets in the region, not merely a participant in it.<\/p>\n The detail of the Q2 2026 call will reveal how the next two years play out. The points worth tracking are the level of competition for the capped grant, how the \u20ac69,000 per MWh ceiling interacts with falling battery hardware costs, whether the new grid connection auction speeds up or slows down project timelines, and how merchant revenue assumptions hold up as more capacity comes online and arbitrage spreads potentially compress. The projects that win in 2026 and model their returns conservatively against that compression are the ones most likely to deliver.<\/p>\n At Momentum Energy, we see the Romanian CISAF scheme as one of the clearest signals yet that CEE storage has moved from speculation to a financeable asset class.<\/p>\n A few things stand out. First, the structure is smart. By funding standalone systems rather than only co-located ones, Romania is backing the most flexible and commercially capable form of storage, the kind that can freely arbitrage and provide balancing services without being tied to a single generator. Second, the subsidy is not propping up a weak market. It is accelerating a strong one. The arbitrage spreads, the balancing demand, and the grid’s structural need for flexibility would make Romanian storage attractive even with thinner support. The grant simply sharpens already compelling returns and pulls projects forward in time. Third, this is a template moment. As Romania’s first CISAF measure, this tender will be studied closely by neighbouring markets, and the returns it produces will inform how capital is priced for storage across the region.<\/p>\n The wider lesson is that the centre of gravity for European storage opportunity is shifting eastward. The established Western markets remain important, but the combination of high volatility, rapid renewable growth, and supportive new state aid rules is putting Romania and its CEE neighbours firmly on the map. For anyone allocating capital or planning projects in storage, the next two years in Romania will be instructive, and we will be watching the Q2 2026 tender closely.<\/p>\n For developers and investors weighing their next move, the takeaway is straightforward. The window defined by this tender is narrow, the fundamentals behind it are strong, and the projects that move early and model carefully are the ones best placed to capture the upside.<\/p>\n Where do you see the best storage returns in CEE over the next two years? We would value your perspective in the comments.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" In March 2026, the European Commission quietly approved something that could reshape the economics of grid-scale battery storage across Central and Eastern Europe. Romania won the green light for a \u20ac150 million subsidy scheme to fund standalone battery storage, and it became the country’s first measure approved under the EU’s new Clean Industrial Deal State… Inside Romania’s \u20ac150 Million Battery Storage Subsidy: How the CISAF Tender Will Decide the Next Two Years of CEE Storage Returns<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":2475,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[43],"tags":[],"class_list":["post-2474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/posts\/2474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/comments?post=2474"}],"version-history":[{"count":1,"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/posts\/2474\/revisions"}],"predecessor-version":[{"id":2479,"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/posts\/2474\/revisions\/2479"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/media\/2475"}],"wp:attachment":[{"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/media?parent=2474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/categories?post=2474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/momentumgroup.ro\/en\/wp-json\/wp\/v2\/tags?post=2474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What to Watch in the Tender<\/h3>\n
Momentum Energy’s View<\/h3>\n
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