Energy storage calculator for businesses in the UK

Will a GridVault battery pay for itself at your site?

Enter a few rough numbers to get a quick estimate.

Site details

Use rough numbers if needed. You can update them any time.

Annual site electricity use
Use the annual total from a recent bill. If you only have one month, multiply by 12 for a rough estimate.
250,000kWh / yr
Approx bill: £66,568 / yr
Average month: 20,833 kWh
50k1M2M
Electricity rates
If you know your contract rates, enter them here. If not, use one of the sample options below.

Sample tariffs are illustrative only and not a recommendation.

Your quick estimate
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Request your personalised business case

Provide a few details so we can get in touch and provide you a customised business case for your site.

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Illustrative estimate only. Not a quote or guaranteed saving.

Important assumptions and disclaimer

The output on this page is illustrative and based on your inputs plus simplified assumptions about tariff spread, cycling, battery efficiency, and battery cost.

Actual results depend on your site's load profile, grid connection, tariff structure, installation scope, and market eligibility. We will prepare a site-specific business case based on your inputs and current market conditions.