WEMO 2025 (complet) - Flipbook - Page 33
W E M O 202 5
O U T LO O K
√ Additional infrastructure
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Growth of stationary battery systems falls
short of energy transition needs Large-scale
energy storage systems can store excess energy
generated during periods of high renewable output
and release it when production is low. This enables
grid balancing. The stationary batteries market that
grew in 2024, is projected to grow from $5 billion
to $150 billion by 2030238. In 2024, the US utilities
added 10.4 GW of new battery storage capacity and
additions should double in 2025239. Battery storage
capacity now exceeds pumped hydro capacity,
totaling more than 26 gigawatts. Despite this
growth, battery capacity was only 2% of the 1,230
GW of utility-scale electricity generating capacity.
In Europe a 15% annual growth to 22 GWh of newly
deployed Battery Energy Storage Systems (BESS)
in 2024 expanded the battery 昀氀eet to 61 GWh
https://pvcase.com/blog/renewable-energy-and-grid-stability-modern-infrastructurechallenges-and-solutions/
https://www.eia.gov/todayinenergy/detail.php?id=64705
240
https://api.solarpowereurope.org/uploads/SPE_European_Battery_
Outlook_2025_62b89db476.pdf
241
https://justenergy.com/blog/vehicle-to-grid/
242
https://www.sciencedirect.com/science/article/pii/S2590174524003428
243
https://www.iea.org/reports/global-ev-outlook-2024/trends-in-electric-cars
238
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Vehicle to grid241,242 Globally, in 2024 there were
around 40 million electric vehicles (EVs) on the
road240 and that number is expected to grow.
Vehicle-to-grid (V2G) technology enhances grid
stability by enabling EVs to act as mobile energy
storage units, supplying stored power back to the
grid during peak demand or renewable energy
昀氀uctuations, thus balancing supply and demand243.
They can also provide ancillary services as frequency
regulation. In Denmark, a V2G pilot with Nissan Leaf
vehicles demonstrated that each EV performed
100 hours frequency services and generated
1,860€ per year by participating in energy markets.
Renault launched a V2G o昀昀er in France at the end of
2024244, and in July 2025 in the UK, Octopus Energy
partnered with BYD to introduce the country’s 昀椀rst all-
239
244
https://www.batterypowertips.com/
how-does-vehicle-to-grid-technology-work-to-improve-sustainability/
245
https://www.renault.fr/renault-mag/thematique-innovations/avec-mobilize-v2g--la-futurerenault-5-electrique-devient-une-so.html
246
https://www.electrive.com/2025/06/24/octopus-energy-and-byd-launch-uks-昀椀rst-v2g-bundle/
WEMO 2025
• Technical solutions
in-one V2G bundle246: a compatible EV, bi-directional
charger, and smart tari昀昀, together enabling free home
charging and turning EVs into grid-supporting assets.
However, V2G is still in early stages, as many EVs are
not vehicle-to-grid ready. Furthermore, EV drivers
often have worries such as lack of reliable bidirectional
EV charging infrastructure and their vehicle not being
available if they urgently need it.
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with Germany, Italy, and the UK accounting for 2/3
of these additions. Signi昀椀cant BESS expansion in
Europe is forecasted240 to reach a total capacity
to 400 GWh by 2030, which remains far below the
780 GWh levels required to meet the 昀氀exibility
needs in a renewable-driven energy system.
Measures to boost BESS growth include enhancing
their economic viability, removing regulatory barriers,
and prioritizing storage in national energy strategies.
Integrating high shares of intermittent renewables:
technical, regulatory, and political solutions
