Energy flexibility report 2025

Flexibility report 2025

Utilities can’t rely on commodity sales. Stacking value pools and enabling flexibility unlocks comfort, efficiency and up to €1,500/year in savings for end consumers.

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Executive summary

Flexibility is the new currency for future-proof revenue and loyal customers

01

Residential energy is booming and flexibility is essential to manage this growth. By 2030, Germany targets half of its 215 GW solar from rooftops and the EU needs up to 780 GWh storage. EVs may reach up to 50 million cars, while heat pumps should reach 60 million.

02

74% of 300 surveyed end users want flexibility savings, but only 18% actively participate in energy markets today, showing adoption is lagging. Trust will divide the winners as over half cite a reputable provider as the top feature.

03

§14a EnWG cuts grid charges for controllable devices. With HEMS integration and Module 3’s time-variable grid fees, households can save up to €750 annually while maintaining comfort and control.

04

By 2035, Dutch households will provide 28 TWh of shiftable demand. The imbalance market rewards real-time support for grid stability, with daily earnings of about €2.90 from battery discharge at high export prices.

05

A Danish household with PV, battery, dynamic tariffs and HEMS saved 58% in 2024. By 2040, as price volatility increases, savings could grow by another 13% – all through smart optimization already available today.

06

Fragmented standards and complex regulations slow flexibility. Robust HEMS and strong ecosystems can connect devices seamlessly, ensure compliance and unlock full flexibility value for households, providers and the grid.

Energy flexibility evolves step by step

Energy flexibility is a journey powered by advanced HEMS. It starts with single-asset cloud-to-cloud optimization, advances to system-wide multi-asset control and is fully utilized when aggregated demand side flexibility is traded on markets. Each stage unlocks more value: from direct savings to systemic benefits.

Customers are ready for demand side flexibility

A gridX survey of 300 small-scale energy asset owners in the UK, Netherlands and Germany, found that many end users are ready to participate in energy markets, illustrating that as market penetration increases, customer resistance declines. In the UK, 39% of respondents already use implicit demand side flexibility, with only 4% opposed. The Netherlands leads in willingness, while Germany lags in adoption but shows high potential. The markets with a higher adoption rate also have a higher willingness, showing that as market penetration increases, customer resistance declines.

Energy flexibility value stacking boosts savings

Value stacking is the key to unlocking the full potential of energy flexibility. With an advanced HEMS, households can save up to €1,500 per year. While value stacking maximizes consumer savings, it has the added benefit of also strengthening grid stability and renewable integration – all without end users sacrificing comfort or changing routines (which gridX’s survey proved is of utmost importance).