NatPower Signs Initial 25GWh Energy Storage Deal with Tesla, Total Scale Reaching $5 Billion

Alina Collins
Published 2026-06-23About 6 min read

NatPower and Tesla signed a 25 GWh battery-storage agreement covering Italy and the UK — the first phase of a partnership worth up to $5 billion, signaling Europe's storage market is shifting from planning to large-scale execution.

01

What exactly did the two sides sign?

NatPower will deploy Tesla's Megapack — large-scale battery storage units — to build 25 GWh of storage capacity across five initial projects in Italy and the UK.
Beyond hardware, the deal includes Tesla's energy-trading software, which uses algorithms to decide when to buy and sell power for maximum margin.
This means → Tesla is not just selling batteries here. It is locking in a bundled hardware-plus-software deal that generates long-term operating revenue.
02

How big is the full plan?

The first phase is just the opening move. The ultimate target is over 100 GWh of storage capacity, with build costs estimated at $4–5 billion.
Over 20 years, the projects could generate more than $15 billion in revenue.
In plain terms = the 25 GWh tranche is the show unit. The real bet is the 100 GWh+ behind it — and if fully built, it would rank among Europe's largest battery-storage partnerships to date.
03

Why does Europe need storage this urgently?

European countries are connecting wind and solar to the grid at scale, but these sources are intermittent — output swings with the weather.
Battery storage fills the gap: charge when generation is high, discharge when it drops, turning unreliable green power into dispatchable electricity.
This reflects a shift in the bottleneck. Europe's storage problem is no longer technology or capital — it is whether infrastructure can be delivered on time and at scale.
04

Does the "ecosystem" logic hold up?

NatPower CEO Fabrizio Zago put it directly: "The industry has the technology and capital, but still struggles to deliver infrastructure on time and consistently."
He framed the partnership as a replicable ecosystem — capital provides funding, Tesla supplies hardware and software, NatPower handles execution.
This means → The logic sounds complete on paper. But the real test is singular: can the first five projects deliver on schedule and prove the business model? If they cannot, the 100 GWh target stays on a spreadsheet.

Content is for reference only, not financial advice.