Deployed storage
~885 GWh
Estimated stationary battery energy capacity now in service worldwide (855-913 GWh range).
2025 actuals where available · 2035 storage outlook
Battery Deployment Scoreboard
Track how fast stationary batteries are entering the power system, and compare that buildout against the world's generation stack: coal, gas, oil, hydro, wind, solar, and nuclear.
Important unit boundary
Batteries are not an energy source. They are storage: measured as power capacity in GW and energy capacity in GWh. Coal, gas, hydro, wind, solar, and nuclear are generation sources: usually measured as annual output in TWh or plant capacity in GW.
The charts separate battery deployment, electricity generation, renewable additions, and regional grid mix so storage is not mistaken for a fuel source.
2025 battery build
107.7 GW / 247 GWh
New battery storage added in one year. Utility-scale projects supplied most of the new power capacity.
Solar surge
+600.2 TWh
Solar PV produced the largest year-on-year increase of any electricity source in 2025.
2035 outlook
7.3 TWh
Public BNEF outlook for cumulative stationary energy storage by 2035: about 2 TW / 7.3 TWh.
World energy shift, 2015-2025
Each year's total electricity generation by source, in TWh — annual totals, not additions. Hover to inspect a year.
Selected year
2025
Visible stack
32,088 TWh
selected sources
Largest source
Coal
33.8% of total
Fastest growing
Solar PV
+29.2% YoY
Biggest mover
Solar PV
+600.2 TWh
Renewables
33.7%
10,808 TWh
Fossil share
57.4%
coal + gas + oil
Generation sources · renewables expanded
Total electricity generation
32,088 TWh
World, 2025
Renewables generation
10,808 TWh
33.7% of world power
Coal generation
10,858 TWh
33.8% of world power
Why now: the price of storage collapsed
Every chart below is downstream of this one. Storage scaled because the pack price fell far enough to make it worth building.
Average pack price · $ per kWh · nominal
Chart shows the continuous 2018-2025 survey. The 2022 uptick to $151/kWh was the first annual rise on record, driven by a lithium-price spike; prices then resumed falling to new record lows in 2024 and 2025.
2010 → 2025
−91%
From $1,191/kWh in 2010 to $108/kWh in 2025 — the cost collapse that makes “batteries are the new oil” a buildout, not a slogan.
EV packs, 2024
$97/kWh
Crossed below $100/kWh for the first time — in China, packs reached $94/kWh.
Battery storage additions
Power-capacity additions by market. Select a region to see the utility-scale vs behind-the-meter split.
Market filter
Selected: Global
Added per year · GW
Global 2023
44 GW
73% utility-scale
Global 2024
77.3 GW
82% utility-scale
Global 2025
107.7 GW
81% utility-scale
Storage GWh milestones
The clearest public GWh view is annual stationary storage additions plus a current cumulative range.
Added per year · GWh
Cumulative storage trajectory
2024638 GWh
2025885 GWh
20357.3 TWh
The current deployed base is still small beside annual generation, but it is growing into the flexibility layer that makes higher solar and wind penetration usable.
The bigger battery market: electric cars
Stationary storage is the headline above, but cars are where most of the world's batteries actually go — and that market is run from one country.
New electric cars sold per year · millions
Global electric car sales rose from about 3 million in 2020 to over 20 million in 2025 — roughly a quarter of all new cars sold. Figures are IEA Global EV Outlook headline totals.
China's share of global EV sales, 2025
~60%
More than 13 million electric cars were sold in China — its share eased from ~65% in 2024 only because other markets finally started catching up.
Inside China, 2025
~55%
of all new cars sold were electric — the same cost curve, seen from the demand side.
What charges the batteries?
Pick a region to see the grid mix batteries would meet if charged from the average electricity system.
Coal
33.8%
Gas
21.2%
Oil
2.3%
Nuclear
8.9%
Renewables
33.6%
World
Fossil share
57.3%
Low-carbon share
42.5%
For batteries, the cleanest deployment story is not only installing storage. It is pairing storage with a grid that is adding solar, wind, hydro, nuclear, or other low-carbon supply.
2025 renewable capacity additions
Solar dominates new renewable capacity. Battery storage follows as the balancing layer.
IRENA reports 692 GW of renewable capacity added in 2025, equal to 85.6% of total net power-capacity expansion.
2025 battery buildout share
New stationary storage power additions by market. The stacked bar adds up to the same global total.
Global additions
107.7 GW
100% of tracked 2025 market additions
Largest share
China · 58.6%
Fastest buildout
Rest of world · +394%
Solar and wind market signal
Major-market 2025 additions show where future battery charging demand is likely to cluster.
Sources and boundaries
Battery GWh figures here refer to stationary battery energy storage, not EV battery packs and not pumped hydro. The charging-source view is a regional electricity mix proxy, not metered battery charging.
IEA Global Energy Review 2026 - battery storage
Power-capacity additions by year and region; 2025 values based on Benchmark data.
IEA Global Energy Review 2026 - electricity supply
Global generation by source, regional electricity mix, and 2025 generation changes.
IEA Global Energy Review 2026 - solar PV and wind
Renewable capacity additions and selected market solar/wind additions.
IRENA Renewable Capacity Statistics 2026 press release
Global renewable capacity expansion and share of total power expansion.
IEA Global EV Outlook 2026
Global electric car sales exceeded 20 million in 2025 (a quarter of new cars); China supplied about 60% of global sales.
IEA Global EV Outlook 2025
Historical sales milestones: ~3M (2020), 6.6M (2021), >10M (2022), ~14M (2023), 17M+ (2024); China ~11M in 2024.
BloombergNEF 2024 Lithium-Ion Battery Price Survey
Volume-weighted average pack price of $115/kWh in 2024; average EV packs reached $97/kWh.
BloombergNEF 2025 Lithium-Ion Battery Price Survey
Latest survey: volume-weighted average pack price fell to a record $108/kWh in 2025.
BloombergNEF 2H 2025 Energy Storage Market Outlook
Long-run cumulative energy storage projection of 2 TW / 7.3 TWh by 2035.
Carbon Brief summary of Ember Global Electricity Review 2026
Public GWh storage-addition context and battery capacity relative to daily solar generation.