Australia Begins Construction of a Massive 400 MWh Grid Battery
Australia is taking another major step toward a more flexible electricity grid with construction beginning on a 200 MW / 400 MWh battery energy storage system in Newcastle, New South Wales.
The project, known as Steel River East, is being developed by PLUS Grid Storage and is designed to store large amounts of electricity for use when the grid needs it.
What Does 400 MWh Mean?
A battery's capacity is normally described using two important measurements:
MW — megawatts: how quickly the battery can deliver power.
MWh — megawatt-hours: how much energy the battery can store.
A 200 MW / 400 MWh system theoretically represents approximately two hours of operation at its maximum 200 MW output.
Actual operation will depend on how the battery is dispatched.
Why Are Grid Batteries Becoming Important?
Renewable energy sources such as solar and wind don't always produce electricity when demand is highest.
Solar generation, for example, is strongest during daylight hours.
A battery can absorb electricity when generation is high and release it later.
That makes large battery systems increasingly important as renewable energy becomes a larger part of electricity networks.
Batteries Are Becoming Part of Power Infrastructure
Large battery systems are no longer simply backup equipment.
They can provide grid services, manage energy during periods of high demand and help integrate renewable generation.
This creates opportunities for electrical engineers, control engineers, power-system specialists and energy developers.
What This Means for Africa
The same technology could eventually become increasingly important in African electricity systems.
Countries with abundant solar resources can combine solar farms with batteries to provide electricity beyond daylight hours.
For countries dealing with grid instability, energy storage could become an important part of future power infrastructure.
