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The maximum period you can retrieve data from a smart meter is 13 months. For this reason, we always analyze 13-month periods, as this also accounts for seasonal variations.

Meter data in the UK is recorded in 30-minute intervals. When running Shîfter operationally, we rely on usage data from the inverter, which typically has a higher resolution (1–3 minutes).

According to the English Housing Survey 2022 to 2023: Energy Report, the average UK household emits 2.7 tonnes of carbon per year.

There are three main types of tariffs: fixed, dual, and agile.

• Fixed tariff — A single set price, making it difficult to save money unless your usage changes significantly (variable tariffs usually work in a similar way).
• Time-of-use tariff — Two different rates, allowing us to shift your battery charging to cheaper times.
• Agile tariff — Prices change every 30 minutes based on market prices.

Power Hour is a free daily insight showing the greenest hour to use grid electricity.

Shîfter is designed for homes with solar panels and/or battery storage. During sign-up, we’ll check compatibility and let you know what’s supported. However, if you're still thinking about solar panels and/or battery storage, we can create a report based on your consumption to see what savings you could make.

Savings come from Shîfter’s continuous optimisation across the day. Power Hour relates to carbon awareness, while wider automation contributes to bill reductions over time. You can decide whether we optimise for carbon or cost once you've signed up.

We may ask for details about your inverter, battery and energy provider. We explain why each step is needed and you can complete the setup when ready. We're always available to support as well.

If you’re more technical, we can also offer a faster “connect now” route.

No. You can start with a savings estimate first. Connection steps come later, once you’ve seen the value and you’re ready.