How Tim cut his electricity bill by £2,000 with a smart battery system
Tim Levett lives in a large Victorian home with his family in the Isle of White, England. Like many older properties, it comes with high electricity costs of more than £300 a month. After installing a battery system managed by Capture, Tim has brought his bills down to just £100 a month. In this article, Tim shares how he did it, without changing how he uses energy.

The topic in a nutshell
Tim’s large Victorian house, combined with a heated pool, saw electricity bills stand at over £300 a month.
Tim’s 40 kWh battery charges overnight at 7p per kWh, then powers his home during the day. [Capture AI] manages the system automatically.
Without changing his lifestyle, Tim now only pays £100 a month instead of £300, with annual savings exceeding £2,000.
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How much was your electricity consumption and how much were you paying?
“We were using around 14,000 kWh and paying £3,800 a year before switching to Capture and installing the batteries."
Before turning to Capture Energy, Tim paid over £300 a month to run his home, driven by the high energy demands of his property. He had looked into adding solar, but concerns about planning permissions, and not having a single large roof made it impractical. He also experimented with switching off some energy-hungry appliances, like the pool house dehumidifier, but quickly saw mould growth as a result. It became clear that reducing consumption wasn’t the answer. A smart battery system offered the right solution: lower costs without the compromise.
Why did you install a battery system and join Capture Energy?
“I wanted to find a way to reduce what we pay, without compromise.”
The motivation was simple: reduce reliance on the grid and bring monthly costs down. The aim of a stand-alone battery is to cover as much of your electricity consumption as possible without overspending, ensuring nearly all your consumption is coming from electricity stored at cheap off-peak tariffs. The Capture Energy team helped find the right system to match Tim’s real usage and ensure his investment delivers.
“I’ve had a 40 kWh battery with a 10 kW inverter installed. It covers our daily consumption needs.”

How much are you saving right now and where do these savings come from?
“We now save more than £200 a month by having a battery”
By paying his supplier, British Gas, £200 less each month, Tim’s annual savings are over £2,000 with no change in how or when he uses his appliances.
“We purchase our electricity at 7p/kWh during the off-peak period and use it throughout the whole day when electricity would otherwise cost 27p/kWh.”
In practice, Tim now only ever pays 7p/kWh for electricity. We call this his ‘Capture Price’ – the real cost of the electricity he uses, measured in pence per kilowatt-hour (p/kWh). It answers the simple but important question: How much did my electricity cost me today? [Capture AI] ensures charging happens only when prices are lowest so that during the day Tim uses his stored, low-cost energy instead of drawing from the grid at peak rates. In addition, Capture always monitors for opportunities to connect Tim's battery to other electricity markets and earn grid rewards where battery owners get paid extra for stabilising the grid. Capture earns 50-100% more from a battery by automating these processes for free.
How do you keep track of these savings?
“I use the Capture app which automates everything remotely. It's simple and very easy for me to use.”
Tim finds Capture's app sleek and easy to use. He understands how [Capture AI] boosts the savings his battery system. In particular, with clear visuals like the Total Savings figure as well as the battery's charging and discharging schedule, he can understand exactly where the savings come from.
Would you recommend Capture Energy to other homeowners?
“Yes, definitely. We are very happy that we installed these batteries, and the way Capture manages them to reduce my electricity bill has taken a considerable weight off my mind.”
Capture continues to help Tim get the most from his system – not just by managing savings day to day, but by unlocking new ways to generate value from his system over time. Next, Tim plans to switch suppliers to sell excess electricity back to the grid at peak prices. This means his battery won’t just help him save – but also earn him money.
“I’m planning to switch to Octopus Go. That way, we can start being paid to export spare electricity from the battery when our storage exceeds our usage.”
Got a battery? Optimise it – for free.
Buy low. Sell high. On autopilot.
[Capture AI] powers your home with the cheapest energy and gets you paid for supporting the grid – all without lifting a finger. You stay in control with a clear, real-time dashboard showing exactly how much you’re saving and earning.
“I’m Tim Levett. I live on the Isle of Wight, and have a battery system managed by Capture Energy to cut my electricity costs. We’ve got a high-usage house and needed a better solution.”
