Energy Storage Scale Under Construction: A Global Snapshot in 2025

Why the World Can’t Stop Building Bigger Batteries

Let’s face it – the energy storage industry is having its "hold my coffee" moment. With over 35GWh of energy storage scale under construction in China alone this March[1][3][5], and the UK racing to deploy 17GWh by year-end[2], we’re witnessing a storage boom that makes the California Gold Rush look like a yard sale. But what’s fueling this frenzy, and why should you care?

The Great Storage Marathon: Who’s Leading the Race?

China’s Storage Sprint

Last week alone, China added enough storage capacity to power 1 million homes for a year. Key developments include:

• Hybrid tech wonders like the Tianjin TEDA project mixing lead-carbon + solid-state + vanadium flow batteries[1]
• The Shandong "energy vault" storing 950MWh using 95% lithium-ion + 5% vanadium flow[1]
• 13 provinces racing to complete 35GWh of projects, with Henan Province’s 9GWh portfolio leading the pack[3]

Britain’s Storage Tea Party

Across the pond, the UK’s storage scene is brewing something stronger than Earl Grey:

• 19GWh currently under construction – enough to power London for 3 peak hours[2]
• CIP’s 1GWh coal-to-battery conversion in Scotland (talk about poetic justice!)[2]

Tech Throwdown: What’s Hot in Storage Innovation

Forget smartphone wars – the real tech battle is in long-duration storage solutions:

• Compressed air储能 hitting 72% efficiency (take that, physics!)[9]
• China’s -30°C capable air storage systems – because Siberia needs love too[9]
• Sodium-ion batteries getting 30% cheaper – your future e-bike says thanks[9]

The Hybrid Revolution

Why settle for one battery type when you can have three? The Tianjin TEDA project’s lead-carbon + solid-state + vanadium flow combo isn’t just tech porn – it’s solving the "Swiss Army knife" problem of energy storage[1].

Money Talks: Where the Billions Are Flowing

Follow the money to find tomorrow’s storage hotspots:

• China’s $16B Tianjin project using three storage techs (because why choose?)[1]
• UK’s 254MWh average project size (that’s 42,333 Tesla Powerwalls, folks)[2]
• US$43.7B invested in Chinese new energy storage in 2024 alone[5]

Storage Showdown: East vs West

While China’s building giga-projects faster than TikTok trends, Western players are betting big on:

• AI-optimized storage (because even batteries need smart friends)[6]
• Salt cavern storage (yes, those hollowed-out mines now hold electrons)[6]
• Virtual power plants (because real ones are so 2010)[10]

The Policy Puzzle

From Ningxia’s 15% renewable storage mandate[9] to Britain’s streamlined approvals[2], governments are writing checks the storage industry can’t wait to cash.

What’s Next – And Why You Should Care

As we speak, 10GWh of new storage broke ground in China last week[1], while London just approved its biggest battery yet[2]. The energy storage scale under construction today isn’t just about keeping lights on – it’s reshaping how we’ll power everything from AI data centers to your morning espresso machine.

[1] 储能项目周报:3月第1周在建/并网储能项目10GWh+ [2] 英国在建储能项目约19GWh 2025年预计有17GWh以上项目并网运行 [3] 近35GWh储能被列入13省市2025年重点项目 [5] 2024年，中国新增新型储能投运装机规模43.7GW/109.8GWh [6] 储能技术助力绿色能源，新型储能项目装机规模激增20倍 [9] 储能行业大爆发!2025年这些新动向你必须知道