Soly and Triodos Bank make home batteries affordable for consumers and SMEs

Financing model offers a solution for millions of solar panel owners after the phase-out of net metering

Amsterdam, May 13^th 2025 – Soly and Triodos Bank are joining forces to take an important step towards an affordable energy transition. Triodos Bank is financing Soly, which in turn will lease home batteries – including maintenance and insurance – to both consumers and SMEs. This gives households and businesses with solar panels access to a battery solution without the burden of high upfront costs, just as the phase-out of the net metering scheme in 2027 approaches.

€18 billion in capital required
In the Netherlands, more than 3 million households already have solar panels, but the majority do not yet have a battery to efficiently store and utilise their self-generated electricity. Without a battery, these households and businesses risk facing higher energy costs. Thanks to Soly's leasing model, they will soon be able to switch to their own energy storage easily and affordably, without the need for large initial investments. And as such, increasing the level of self consumption of solar energy.

The need is substantial: over the coming years, an estimated 3 million Dutch households will require a battery to optimise their energy supply. This represents an investment of approximately €18 billion in the energy transition — an essential step towards keeping the Dutch energy system flexible and making it more sustainable.

"By collaborating with Triodos Bank, we can offer consumers and entrepreneurs a fully managed battery solution, including installation, maintenance, and insurance. Our batteries are also equipped with our Soly Brain energy management system and the recently launched Soly Copilot, enabling customers to become smarter and faster self-sufficient. This way, we keep the energy transition not only sustainable but also affordable and future-proof for everyone who has already invested in solar panels," said Patrick van der Meulen, CEO of Soly.

Harold Hofenk of Triodos Bank on the collaboration: "Triodos Bank and Soly have been working together for years to finance the energy transition in the Netherlands. There is strong synergy between our organisations: we share common values around sustainability, transparency, and social impact, and we are both proud B Corp-certified companies. With this new step, we are making home batteries accessible to a wide group of households and entrepreneurs, accelerating the transition to a fairer and more sustainable energy system."

With this model, Soly and Triodos Bank are taking a major step towards making the energy transition feasible and affordable for millions of Dutch households and thousands of businesses.