Charging Your Solar Battery on a Cheaper Night Rate (And Why It Helps the Grid)

May 21
2 min read

Can you charge a solar battery from the grid?

Yes. Many modern battery systems can charge from the grid as well as from solar. That means you can potentially charge overnight on a cheaper tariff and use that stored energy later when electricity costs more.

This is becoming more popular in Essex and London as homeowners look for practical ways to reduce bills and make the most of smart tariffs.

AJK's Solar Batteries

How it works (in plain English)

A battery system can be set up to:

· Charge from solar during the day (when the sun is shining)

· Charge from the grid overnight (when rates may be lower)

· Discharge to power your home at peak times (when rates may be higher)

Important: Not every setup is the same. The best approach depends on your tariff, your usage, and the battery/inverter features.

Why this can reduce your electricity bills

If your home uses most electricity in the evenings (cooking, lighting, TV, showers), a battery can help you avoid buying as much peak-rate electricity.

A simple example:

· Charge battery overnight at a cheaper rate

· Use battery power during the day/evening

· Top up with solar when available

How this can help “balance the grid”

The electricity grid has busy periods (high demand) and quieter periods (lower demand). When lots of homes shift some usage to off-peak times, it can:

· Reduce strain at peak times

· Support more stable energy supply

· Help integrate more renewable energy (which can vary throughout the day)

You don’t need to be an energy expert to benefit from this—it’s just smart timing.