Renewable Energy

Basic

Battery Energy Capacity

Energy stored from voltage and charge capacity.

Formula

E = V \times Q

Live Calculator

Members

Variables

EEnergy (Wh)

VVoltage (V)

QCharge (Ah)

Example

48 V × 100 Ah = 4800 Wh = 4.8 kWh

Did You Know?

A typical home battery stores 5–14 kWh — enough to run a house through an evening peak.

renewable battery storage

Share this formula

More in Renewable Energy

Solar PV Energy Yield

Annual energy from a solar array's area, efficiency and sunlight.

Wind Turbine Power

Power a wind turbine extracts, rising with the cube of wind speed.

Betz Limit

Maximum fraction of wind energy any turbine can capture.

Capacity Factor

Ratio of actual output to theoretical maximum.

Levelised Cost of Energy

Lifetime cost per unit of energy produced.

Battery Runtime

How long a battery powers a load given depth of discharge.