ACER Opens PPA Consultation as Brussels Tries to Unlock Europe's Stalled Offtake Market

ACER Opens PPA Consultation as Brussels Tries to Unlock Europe's Stalled Offtake Market The EU energy regulator is seeking industry input on barriers to scaling power purchase agreements across fragmented European markets. EU energy regulatory agency ACER opened a public consultation on Tuesday seeking views on how to grow power purchase agreement markets across Europe, asking respondents to share experiences of best practices and identify obstacles that have kept corporate offtake volumes well below their potential.¹ The consultation arrives at a moment when Europe's regulatory apparatus is pulling in multiple directions at once on clean energy procurement. The European Commission recommended last month that guarantees of origin should reflect shorter, more granular market time units to tie PPAs more closely to actual generation, a shift that would force buyers and sellers to rethink how contracts are structured. Current GO frameworks operate on time intervals too coarse to capture the intermittency that defines wind and solar output.⁷ That matters because PPAs remain the primary mechanism through which corporates and utilities lock in long-term renewable supply. Without standardised, liquid PPA markets, Europe's electrification push and its ambitions to meet rising power demand from data centres and industrial reshoring risk running into a procurement bottleneck. ACER's own monitoring work this year is focused on electricity and gas wholesale markets alongside LNG and hydrogen, giving the regulator a broad lens on where market design is falling short.⁶ The PPA consultation does not exist in isolation. ACER has also been pressing southeast European transmission system operators to accelerate grid upgrades, strengthen cross-border coordination and apply EU market rules more consistently. The regulator warned that without these steps, the region risks a repeat of the power price spikes seen in 2024.² Grid constraints and PPA growth are intimately linked. A corporate buyer signing a ten-year solar offtake in southern Europe needs confidence that the power can be delivered across borders and that the grid will not curtail the asset. Congestion and weak interconnection undermine the bankability of exactly the contracts ACER is now trying to encourage. New REMIT data reporting rules that took effect on 29 April add another layer. The updated regulations change how and which energy market data must be reported, tightening transparency requirements that touch wholesale trading, including the bilateral PPA market.⁸ For utilities already active in the PPA space, the consultation is an opportunity to shape the rules. Uniper, which is expanding its renewables portfolio across solar, wind and PPA origination, is among the large European players with dedicated PPA desks that stand to benefit from a more harmonised market.⁵ The backdrop is a European industrial base under pressure. Germany's trade deficit with China is expected to surge to around €87bn this year, driven by a collapse in exports and a rush of imports in sectors like cars, chemicals and machinery. That deficit is accelerating a broader reassessment of where European manufacturing sources its energy and at what cost.³ Wood Mackenzie's assessment that the global power sector faces transformational demand growth from emerging market development, electrification and AI-driven data centre expansion only sharpens the question. If supply cannot be ramped fast enough, the terms on which PPAs are struck will tighten.⁴ Europe's PPA market has grown steadily but remains fragmented by national regulation, varying grid access rules and inconsistent GO frameworks. The Nordic markets are relatively liquid. Southern and eastern Europe lag far behind. ACER's consultation is an implicit acknowledgement that voluntary market development has not delivered the scale Brussels needs. The regulator has not set a timeline for translating consultation responses into concrete proposals. What it does with the feedback will signal whether Brussels is prepared to impose cross-border PPA standards or continue relying on member states to converge at their own pace. The next marker to watch is the consultation deadline and whether ACER pairs its findings with enforcement recommendations on the SE European grid upgrades it has already flagged. Without grid reliability, PPA frameworks are paperwork.