Three stories from the week to 16 September 2026 point the same way. A veteran German solar-and-storage developer slid into insolvency even as Vattenfall, Masdar and others committed fresh billions to batteries, Brussels signalled that flexibility will sit at the heart of its post-2030 energy rulebook, and Chinese cell makers started pushing prices back up. The common thread is that value is moving from producing power to being able to shift it, and every figure below links to its source.
1. Europe’s solar-and-storage business is repricing around flexibility
The clearest sign came from Germany. Enerparc, a developer that has built around 500 solar parks and roughly 5.5 GW of capacity, entered preliminary insolvency proceedings, and days later its sister company Pvwerk filed for restructuring under self-administration to finish about 100 solar and battery projects still under construction (pv magazine, 8 Sep; 10 Sep). The filing came only months after Enerparc secured a €1 billion financing package. One analyst called it “an earthquake”: in a detailed post-mortem, S&P Global’s Josefin Berg and Rystad’s Vegard Vollset described a market where solar capture prices are being cannibalised, pay-as-produced PPA prices have fallen, and, in Vollset’s words, “there is no such thing as a pure-play solar developer anymore” (PV Tech, 11 Sep). His summary of where the market is heading was blunt: “Flexibility, that’s the name of the game now, rather than energy.”
Meanwhile the capital did not stop. It moved toward flexible and longer-duration assets. Vattenfall took a final investment decision on a 254 MW / roughly 1,000 MWh battery at the former Brunsbüttel nuclear site in northern Germany, its largest battery to date, connected to the 50Hertz grid and due to operate by the end of 2028 (Energy-Storage.news, 11 Sep). Masdar and Luxcara signed a memorandum of understanding to explore more than €5 billion of joint investment in German battery storage and offshore wind, announced during the UAE state visit to Germany (Energy-Storage.news, 14 Sep). And European Energy said it now has 167 MW / 545 MWh of batteries operational across Denmark, Lithuania (Anykščiai) and Latvia (Saldus), all co-located with generation so a single site can earn from both (Renewable Energy Magazine, 14 Sep).
What this means, and what we would do about it. If you own BESS, PV, EV chargers, HVAC systems or C&I load, the lesson is not that solar is finished. It is that raw energy is abundant and flexibility is scarce, so that is where the margin sits. Three moves worth making now.
First, stop underwriting on one cannibalised revenue line. Stack wholesale and intraday spreads, balancing and ancillary services, and capacity or contracted floors where they exist, then model the volatile case, not the neat one. Second, treat co-location and storage as the way to rescue a squeezed generation asset, not a nice-to-have. A battery beside solar can turn a curtailed midday into an evening sale. Third, get into the connection queue early and design for multi-service dispatch from day one, because the bottleneck now is grid access, not kit.
This is the work we do at Fusebox. We integrate and dispatch BESS, PV, EV chargers, HVAC systems and C&I industrial loads on one platform, across 15 European markets and 9 TSOs, so a single asset can chase several revenue streams instead of one. If you are weighing a build, a retrofit or a route to market, let’s talk.
Talk to Fusebox about multi-service dispatch →
2. Brussels wants flexibility written into the post-2030 rulebook
A draft European Commission impact assessment seen by Euronews signals a shift in EU renewables policy from lighter regulation toward investment, grids and storage. The document warns that the current renewable-energy law is not enough to hit the 2040 climate goal, that national plans put the bloc on track for about 41% renewables by 2030 against a 42.5% target, and that renewables reached almost half of EU generation in 2025 while the system increasingly cannot use all that power (Euronews, 10 Sep). In 2024, more than 10 TWh of renewable electricity went unused because of grid congestion and weak cross-border capacity, and redispatch cost about €4.3 billion, a figure the Commission estimates could reach €26 billion a year by 2030 without action. To address it, the draft proposes better curtailment monitoring, clearer rules for hybrid renewable-and-storage projects, stronger investment signals for flexibility, and greater use of electric vehicles and smart charging as sources of system flexibility.
The plumbing is moving in parallel. Members of the European Parliament’s industry committee backed a draft report on power-grid governance, teeing up a plenary vote and talks with member states, with a linked permitting file expected to enter negotiations in October (Euronews, 14 Sep). All of this sits on top of the flexibility timetable already running at ACER, where member states feed national flexibility needs assessments into indicative non-fossil flexibility targets due in January 2027 (ACER).
What this means. This is direction, not law yet, so it is a plan-ahead signal rather than a today-changes-everything one. But the direction favours anyone with flexible assets: hybrid rules, flexibility investment signals and smart charging are being written toward the centre of the framework, not the margins. For portfolio managers the practical read is to design projects that can prove and monetise flexibility, because the rules are heading that way and the curtailment they are trying to cure is exactly what storage and shiftable load get paid to absorb.
Not sure how a rule change maps onto your assets? Our knowledge bot can walk through the basics at fusie.fusebox.energy/knowledge-bot, and when you want a real answer for a real portfolio, we are here.
Map your flexibility route to market with Fusebox →
3. The cheap-battery tailwind is fading as cell prices turn up
After years of falling prices, Chinese cell makers are pushing quotes back up. CATL raised its 314Ah storage cell from RMB 0.414 to RMB 0.423 per Wh, EVE Energy added a 2% consumption-tax surcharge on domestic products from 1 September, and Lishen passed through the 2% tax plus local surcharges, with smaller producers following (Energy-Storage.news, 9 Sep). The trigger is a new Chinese consumption tax that took effect on 1 September, 2% now and rising to 4% in September 2027, landing on top of a lithium-carbonate rebound and tight supply, with storage cell lines running above 90% utilisation. Industry trackers put average 314Ah cell prices up from about RMB 0.28/Wh in early 2025 to roughly RMB 0.38/Wh by mid-2026.
For Europe the read-through is real but softer. Analysis from InfoLink in July found that weaker Chinese solar demand would not translate into cheaper cells for European buyers, that system prices are rising more slowly than cell prices because project returns cap what developers will pay, and that flexibility, not cost, is now the defining theme for European storage (ESS News, 16 Jul).
What this means, for the BESS asset owners. The tailwind of ever-cheaper kit is easing, so a project that only penciled because hardware kept getting cheaper is now exposed. Two responses. Lock supply and pricing earlier, in batches, and treat quote validity windows as short. Then squeeze the part of the return you actually control, which is dispatch. A well-run system that stacks arbitrage, balancing and ancillary services can out-earn an identical but poorly-dispatched one by a wide margin, and that gap widens exactly when hardware stops bailing you out. Hardware is a one-time cost. How you operate the asset is every day.
Let’s pressure-test your project economics together →
Regulatory and market watch
- Germany, StromVKG capacity market: winners of the first 4.5 GW long-term auction are due on 3 November (bids closed 8 September, 15-year contracts, max €244,000/MW de-rated). A ten-hour rule keeps batteries out of the first 9 GW, but BESS can bid into the 2027 generation auction and the 2027 and 2029 capacity auctions (Energy-Storage.news).
- Italy, MACSE-2: the second storage auction is set for 24 November for 16 GWh (2029 delivery), about 60% larger than the first; qualification documents were due to Terna by 10 September and pre-auction guarantees by 20 October, with the quota trimmed by any Capacity Market 2028 awards in MACSE zones before 4 November (DLA Piper; Timera Energy).
- EU Grids Package: Parliament’s grid-governance report heads to a plenary vote, with the linked permitting file expected to enter inter-institutional talks in October (Euronews).
- Nordics, FCR-D: the Nordic TSOs’ volume limit on “static” FCR-D upward regulation goes live on 30 September (initially capped at 50% of demand, Fingrid’s share at most 308 MW), which nudges value toward assets that deliver dynamically, such as batteries (Fingrid).
- Baltics, balancing review: Litgrid, Elering and AST are due to submit their Q3 2026 annual analysis of balancing services, including the phase-out path for demand-reduction reserves, to the Baltic regulators (Elering).
