Main system
Energy
How power is generated, moved and stored, and how grids adapt as more of the economy runs on electricity.
Electricity, renewables, grids and storage
Grid-scale battery storage
Storing electricity when it is plentiful and releasing it when the grid needs it.
The problem
Wind and solar output does not always line up with when electricity is needed.
Approach01
How it works
It helps balance supply and demand on grids that draw more of their power from variable sources such as wind and solar.
Batteries charge when power is plentiful and discharge when demand is high.
They respond quickly, which helps grid operators keep supply and demand in balance.
Sites are often placed near substations or alongside renewable generation.
Limitations02
Where it falls short
Most installations store energy for hours, not days or seasons.
Battery materials raise supply chain and recycling questions.
Capacity declines with age and use, so systems need managing over their life.
At a glance
Where it fits.
- Main system
- Energy
- Also shapes
- Transport, Buildings, Industry, Water
- Related solutions
- Rooftop solar
- Used in
- Battery storage beside a wind farm
How solutions are sourced and reviewed is set out in our methodology.
System and projects
In practice.
Adding batteries at a wind farm so its output can be shifted to when the grid needs it.
Wind output does not follow demand; storage on site lets a wind farm deliver more of its power when it is most useful.
Your questions, answered.
Quick answers about the platform and its content.
A technology or approach that addresses a specific problem in one or more systems, from heat pumps to land shared between farming and solar.
Only where a maturity stage is defined and backed by sources. We don't estimate one.
Always. Every solution lists where it falls short, alongside what it addresses and how it works.
To cover every system, from technologies like heat pumps and batteries to changes in how land, water and materials are used.
From published research and practice. Every entry is reviewed by people who know the field and linked to the systems, solutions and projects it relates to.
