Energy News Roundup: August 2026 Edition

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France starts paying storage for where it sits on the network

From 1 August 2026 an optional annual injection-withdrawal component under TURPE 7 applies to medium- and high-voltage storage connected in France. Set by the energy regulator CRE, it rewards operators that charge and discharge in line with local network conditions. It applies only in zones where constraints can be anticipated, listed in CRE's deliberation of 1 October 2025. The component runs for the remainder of the TURPE 7 period, 2025 to 2028. For operators it turns grid tariffs from a flat cost of doing business into a locational revenue signal, which changes site selection as much as it changes dispatch.

The evening ramp, not midday, set the record in Southeast Europe

Day-ahead prices across seven Southeast European exchanges ran 50 to 100% above preceding weeks between 31 July and 6 August, peaking at 717 €/MWh on Slovenia's BSP Southpool on 3 August in the 20:00 to 20:15 interval. The highest prices clustered in four 15-minute units between 19:30 and 20:30, as solar fell away while demand held. Low Danube water levels throttled Hungary's Paks from 2,000 MW to roughly 230 MW, cut Romania's Cernavodă by 50% and Slovenia's Krško by 20%. Greece and Bulgaria, the two markets with the largest solar and battery fleets, recorded the region's lowest prices.

Italy proposes a sharply lower cap for its 2029 storage auction

Italy's regulator Arera proposed a maximum bid of 22,000 €/MWh/year for the second auction under the MACSE long-term storage mechanism, down from the 37,000 €/MWh/year cap that governed the first round for 2028 delivery. The auction is scheduled for 24 November 2026 and seeks 16 GWh for 2029 delivery, against Terna's estimated system requirement of 32 GWh by 2030. The proposal went to consultation until 7 September 2026. A lower cap alongside a volume well short of the stated 2030 need points to a tighter clearing outcome, so bid discipline matters more in round two than it did in round one.

Italy puts a postcode on battery capacity payments

The 2028 Capacity Market auction differentiates battery derating coefficients by zone for the first time. The differentiation favours the north. For a four-hour battery in Sicily and Sardinia the coefficient falls from 67% in the previous auction to 31%, implying capacity remuneration roughly 50% lower than before. The design intent is a locational build signal, but it lands hardest on the zones most affected by renewable overgeneration, where storage arguably does the most system good. Developers holding southern pipeline now have to rebuild the revenue stack around energy arbitrage and ancillary services rather than capacity payments.

Portugal's largest solar plant shows what full merchant exposure costs

Welink Energy Portugal 2 UK Limited, owner of the 220 MW Solara4 plant in Alcoutim, entered administration on 11 June 2026, reported in late August, after generation ran below forecast and Iberian wholesale prices fell. Solara4 was among Portugal's first large-scale solar projects developed without a guaranteed regulated tariff, with an original design yield of around 382 GWh a year across 661,500 modules on roughly 320 hectares. Creditor exposure of about 64 million euros involves Investec and Kommunalkredit Austria. The plant keeps running while administrators pursue performance improvements and a possible sale, with hybridisation with wind and storage under consideration.

Spain would make data centre grid access conditional on hourly matching

Spain's Council of Ministers approved urgent processing on 25 August of a draft royal decree tying grid access for data centres of at least 1 MW to covering 80% of consumption with additional renewable generation, matched hour by hour rather than annually. Qualifying generation must generally have entered service no more than 18 months before the site starts operating. PPAs must run at least 10 years and name the generation and storage covered, with shortfalls carrying network and system charge surcharges of 100 to 500%. Spain's TSO has granted over 6 GW of access capacity to data centres since late 2023, against national expectations of roughly 3.5 to 4 GW of demand by 2030.

Greenvolt closes 218 million euros for 1.6 GWh of Polish storage

Greenvolt Group agreed a 218 million euro package with UniCredit, made up of 153 million euros in bridge facilities and a 65 million euro guarantee facility, covering project costs for the Ełk and Turośń battery projects in Poland. The two sites total 400 MW/1.6 GWh, at 200 MW/800 MWh each, placing them among the largest in the Polish market. Turośń Kościelna was inaugurated in July 2026 and Ełk is expected to reach commercial operation in the fourth quarter of 2026. Bank appetite for large merchant-exposed storage in Central Europe is now visible in the debt structure, not only in the equity story.

European Energy adds 545 MWh of storage, all of it co-located

European Energy brought 167 MW/545 MWh of battery storage into operation during the first eight months of 2026, at Kvosted, Agersted, Stouby, Kragerup and Måde in Denmark, plus Anykščiai in Lithuania and Saldus in Latvia. Every site is co-located with generation the company already operates, reusing the existing grid connection, permitting position and local market knowledge instead of starting standalone. Further deployment is planned in Denmark, Poland, Lithuania, Latvia, the United Kingdom, Germany and Australia. Co-location is becoming the default first move into storage for operators with an existing portfolio, because it changes the economics of the whole site rather than of the battery alone.