Global battery storage to grow six-fold by 2030: what it means for UK energy

What is driving the global battery storage expansion?

Battery energy storage systems are becoming essential infrastructure as renewables accelerate globally. Global battery storage capacity is set to grow six-fold by 2030, driven by falling lithium-ion costs, grid modernisation targets, and the urgent need to replace coal and gas power plants. China and the United States are leading this expansion, with Europe following closely behind.

This growth matters because renewables alone cannot stabilise electricity grids. Wind and solar generation fluctuates with weather. Battery systems store excess power during high-generation periods and release it during demand peaks, eliminating the need for fossil fuel backup capacity. In 2025, wind and solar power overtook fossil fuels in Germany for the first time ever, demonstrating what is possible when storage infrastructure supports renewable deployment.

For the UK, this trend has direct implications. Our National Grid is transitioning from baseload coal and gas to a mixed renewable and nuclear system. Battery storage reduces strain on ageing infrastructure and allows more clean generation to reach homes and businesses without grid upgrades that take years to plan.

Why should UK businesses care about battery storage growth?

Battery costs continue to fall, making on-site storage increasingly viable for commercial buildings, data centres, and industrial operations. Companies can now pair rooftop solar with battery backup at competitive lifetime costs, improving energy resilience while cutting grid-supplied electricity, which still contains gas generation.

This is particularly relevant for organisations with tighter sustainability budgets. Rather than funding large-scale renewable projects outright, many UK firms now lease battery systems through energy service companies. This reduces capital expenditure and aligns carbon reduction with operational cash flow. As storage proliferates, the cost advantage grows, making decarbonisation more accessible.

However, storage alone does not eliminate all emissions. During winter months or prolonged cloud cover, UK grids still draw from gas plants. This is why offsetting remains a practical strategy for businesses serious about carbon neutrality. Combining on-site renewable generation with battery storage reduces your consumption footprint, while verified carbon offsets cover residual emissions your business cannot yet eliminate through direct action.

How does UK grid decarbonisation affect offsetting strategy?

As battery storage grows and renewables expand, grid carbon intensity steadily falls. This means the CO₂ per kWh of grid electricity decreases year on year. Organisations that offset based on current grid carbon factors may over-offset in future years, wasting resources. Conversely, those that delay offsetting may find their true emissions were higher historically than current data suggests.

The most robust approach combines three elements. First, audit your actual energy consumption and grid carbon intensity at the time of use. Second, invest in on-site or directly-purchased renewable capacity with storage where economically viable. Third, offset any remaining gap using high-quality verified carbon credits. As the grid decarbonises, your offsetting requirement shrinks, allowing budgets to focus on harder-to-abate emissions such as supply chain scope 3 emissions or travel.

How Offset Britain helps align your business with the clean energy transition

Offset Britain recognises that decarbonisation is a journey, not an instant switch. While the grid transforms and battery storage expands, your business needs robust carbon accounting and offsetting solutions. Our Individual plans from £5.99 a month let staff members offset personal commutes and consumption, supporting a culture of carbon awareness. Our Business plans from £566 a year provide organisation-wide offsetting tied to energy audits and renewable investment strategies.

We help you track grid emissions alongside direct energy reduction targets. As your renewable capacity and battery storage increase, your offsetting footprint adjusts accordingly. This creates a transparent carbon dashboard that shows real progress, not static compliance messaging. Combined with verified carbon credits from projects that accelerate renewable and battery deployment in emerging markets, your offsetting directly supports the global infrastructure shift underway.

Written and reviewed by the Offset Britain editorial team. Last reviewed 29 July 2026.

Sources & Methodology

1. Edie: Global battery energy storage set to grow six-fold by 2030
2. Carbon Brief: Wind and solar power overtake fossil fuels in Germany for first time ever
3. Offset Britain: Individual plans
4. Offset Britain: Business plans

Photo by Ramesh Kambattan.