Beating the Grid: How a Swansea Family Cut Energy Bills and Gained Backup Power
- hannahharvey2
- Jul 16
- 2 min read
Limitless Energy Blog | Solar Panel and Battery Storage Installers in Swansea
When Tony and his family moved into their new home in Swansea, they were pleased to find it already had a CTC air source heat pump installed — a great start for energy efficiency and low-carbon living.
But with both adults working from home, regular cooking, and a busy household, their electricity use could spike to 22kWh per day. And with rising energy prices and the occasional power cut, they wanted more control over their energy.
That’s when Tony got in touch with Limitless Energy.
The Challenge: Lower Bills, Greater Resilience
Tony’s goals were clear:
Reduce electricity bills
Become more self-sufficient
Keep the power on during outages
While the heat pump was efficient, their existing E.ON heat pump tariff meant those high-usage days were costing around £4.20 — not ideal for a household aiming for long-term savings.
The Solution: Smart Storage, Tailored Setup
We worked closely with Tony to understand the household’s usage patterns and future needs. After comparing different options, we installed a GivEnergy All-In-One (AIO) battery with 13.5kWh of storage, paired with a GivEnergy Gateway to provide whole-house backup power during grid outages.
This setup gives them the flexibility to charge the battery when electricity is cheapest, then use that stored power during the day — drastically cutting costs and adding peace of mind.
The Smart Tariff Move
Tony was already on E.ON’s heat pump tariff but looking at the options for tariffs that offer cheap night rates, he chose E.ON’s Next Drive tariff — an EV tariff that works perfectly for homes with battery storage, even without an electric vehicle.
With this setup, the battery charges overnight at off-peak rates from midnight to 7am and powers the home during the day. Now, those same 22kWh days cost just £2.14 — a nearly 50% saving compared to before. Tony pays 6.7p off peak and 28.8p at peak times for a fully renewable tariff. A good day with low consumption means he’s running his home for £1.20 a day.
“It’s a huge saving –we are running at just over half our previous monthly costs - £75 down from £130+,” Tony said. “And knowing the whole house stays powered if the grid goes down — that’s a massive bonus for us.”
Want to Do the Same?
Whether you're using a heat pump, running a home-based business, or simply want to cut costs and increase your energy independence, Limitless Energy can help.
We’re based in Swansea and specialise in smart, future-proof energy solutions. We install Heat pumps, Solar PV, Battery Storage and EV charging for homeowners and businesses across Swansea, Neath Port Talbot, Brecon, Bridgend, Cardiff and Carmarthenshire.
Get in touch with Limitless Energy today and let’s find the right system for your home.
Call us on 01792 361638
Book your survey online here: https://www.limitless-energy.co.uk/
Email us at info@limitless-energy.co.uk
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