BERNSTEIN Utilities Daily – June 16th

Research evidence excerpt

BERNSTEIN Utilities Daily – June 16th

alf of June lifted output to the highest on record for the month. Wind generation for June 1-14

averaged about 60GW, some 9GW above June 2025 and compared to a five-year average for June of about 37GW. Wind is forecast

to drop sharply over the coming days, with spotrenewables.com pegging German wind to average only 6GW for the remainder of this

week, down from a 29GW average on June 15. UK wind is forecast to average under 5GW this week, compared to over 10GW in the

first two weeks of June. By contrast, Spanish wind is forecast to rise later this week to average about 4GW for June 19-21, up from

only 1GW for June 15-18. Meanwhile, solar output across the EU27 and Great Britain eased in early June after a record May. Fewer

clouds and higher demand are set to boost solar generation in the second half of June.

• LDES could save up to €250m/y/GW: Eurelectric (Platts). Each GW of long-duration energy storage installed in European

electricity markets could generate annual system-level variable operating cost savings of €150-250m, according to Eurelectric and

AFRY. The report outlines the business case for alternative LDES systems such as iron-air batteries, compressed air and liquid air

storage, which could balance the system for more than eight hours, thereby reducing reliance on pumped-storage hydropower plants.

The report said LDES can help manage network congestion, reduce curtailment of renewable assets and replace thermal units in

balancing and frequency response operations, while also enabling revenue stacking across a range of long- and short-term power

markets. Some storage technologies with durations exceeding 24 hours are expected to achieve commercial viability shortly after

2040 in Germany and the UK.