Sustainability Briefing — 12 September 2026
New EU reporting rules aim to ease sustainability data demands on smaller firms, as fresh figures show renewables cushioning power prices and, for the first time, outproducing fossil fuels in the EU grid. Alongside this, assessments of climate-related losses and adaptation gaps, and an updated definition of green software, underline the practical and structural work still needed to translate these gains into resilience.
EU adopts revised sustainability reporting standards and a voluntary standard for smaller companies
On 3 July 2026, the European Commission adopted revised European Sustainability Reporting Standards (ESRS) alongside a voluntary reporting standard for companies outside the scope of the CSRD. The revised ESRS are described as shorter and clearer with added flexibilities, and the voluntary standard gives smaller firms a single, proportionate framework for responding to information requests from banks, investors and larger clients.
Value chain cap limits data requests passed down to SMEs and micro-firms
The new voluntary standard introduces a value chain cap, meaning companies subject to the CSRD cannot require firms in their value chains to provide more information than the standard covers. To keep it proportionate, some datapoints are voluntary for undertakings with 10 employees or fewer, even where they are essential for larger companies applying the standard.
EEA: renewables cushioned EU power prices through early 2026, but grids and storage are the next step
An EEA assessment published in early July 2026 found that gas price volatility in early 2026 cost the EU an estimated €13 billion by mid-April, while renewables saved users about €29 billion. The briefing cautions that renewables alone will not deliver price gains, with benefits increasingly dependent on grids, storage and demand response to integrate variable solar and wind.
Wind and solar overtook fossil fuels in the EU power mix for the first time in 2025
Ember's European Electricity Review 2026 reports that wind and solar generated more of the EU's electricity than fossil fuels for the first time on record in 2025, reaching 30% of generation versus 29% from fossil power. Solar produced 369 TWh, growing more than 20% for the fourth consecutive year to reach 13% of EU electricity.
EEA flags uneven climate adaptation and structural barriers for small municipalities
In products released in June 2026, the EEA reported that weather- and climate-related extremes caused an estimated €822 billion in economic losses across the EU between 1980 and 2024, with the last four years each among the five costliest on record. The assessment found real but uneven progress on adaptation, noting persistent gaps between planning and implementation and structural barriers that limit action in many small municipalities.
Green Software Foundation updates its 2026 working definition of green software
The Green Software Foundation's 2026 working definition frames green software as software, and the hardware it runs on, designed, built and operated to minimise carbon emissions, energy consumption, water usage and waste across the whole stack. For developers, it emphasises practical choices such as region selection, instance sizing and capacity planning at the layer where workloads physically run.