Yuso

The Pelkmans-Vervoort family raises 195,000 chicks in four sheds in Turnhout and has 398 kWp of solar panels on the roofs. In 2024 the average injection price was only €40/MWh, which made the latest solar extension hard to justify. With an Octave battery installed by Eco Technics at the end of 2023 and steered by Yuso, the farm adds imbalance income to its solar injection and gets money back on its energy bill instead of paying. Since 1 March 2025 Yuso also steers the solar inverters (PV curtailment), switching them off when imbalance prices are very negative.

At its recycling site in Tielt, Casteleyn T.R.S. turns demolition waste into granulates for road building. Its crushing and screening plant used to run on heating oil; today 1,200 solar panels (432 kWp) power the site and often produce more than it needs. Since April 2025 Yuso steers the installation on two prices, day-ahead and imbalance, so output is curtailed only when injecting really costs money and every quarter hour with a positive price is used. Because the site's offtake is also with Yuso, production, consumption and injection are steered together. On Easter Monday 2026, when the Belgian imbalance price fell to -15,000 EUR/MWh, the steering adjusted production at the right moment and the company recorded an exceptionally strong month.

• No more injecting at negative prices
• Curtailment based on both day-ahead and imbalance prices
• Exceptionally strong profit month around Easter Monday 2026
• Next step under study: a battery of at least 0.5 MW for solar storage and peak shaving

Jef Adriaensen grows strawberries on 5.5 hectares of greenhouses in Hoogstraten, with pumps, LED lighting and heating that draw a lot of power. A 150 kWp solar installation feeds an Octave battery installed by Eco Technics in 2024, used both for self-consumption at night and for Yuso's imbalance steering. Energy is bought at the lowest cost and surplus solar power is sold on the imbalance market. In the Yuso Inside portal, imbalance clearly shows up as the battery's main source of income, ahead of self-consumption.

• Imbalance income that makes the electricity bill negative in most months
• Imbalance steering is the battery's main revenue source
• Solar power stored by day for use at night

Joris BV in Mielen trades more than 30,000 tonnes of grain a year and stores potatoes and fertiliser in large warehouses. The site has a 1 MW grid connection, and upgrading it to 2 MW was very expensive. With Solarys Energy, Koen Joris installed two battery containers of more than 4 MWh in total, sized to that 1 MW connection so the battery's full capacity can be used at the right moments. Yuso steers the battery, next to a 377 kWp solar installation, partly for self-consumption and largely on the imbalance market.

GIGA Giraffe, built by GIGA Storage in Amsterdam Westhaven, is a 10 MW / 47 MWh battery, the first 4-hour battery in the Netherlands. Connected to the Liander grid to provide flexibility services to TenneT, it stores renewable energy and feeds it back when demand peaks. As route-to-market partner, Yuso runs the operational management and optimisation of the battery's capacity. It was inaugurated on 17 October 2025.

Hertz 1 in Kiisa, Estonia, is a 100 MW / 200 MWh battery co-owned by Mirova, Evecon and Corsica Sole, inaugurated on 3 February 2026. It is the largest battery energy storage system operating in the Baltic region, which has just joined the Continental Europe synchronous area. Yuso operates and optimises the system for frequency regulation, automatic and manual frequency reserves and wholesale energy arbitrage, supporting grid stability and security of supply.