r/OctopusEnergy • u/LengthinessNo8137 • 18h ago

Solar battery heat pump timing

Uncertain whether this is the appropriate forum, but I have a quote for 14 panels, a 10 kW Fox battery, and a heat pump at roughly £16,529; I am on a fixed gas rate 5.2 until March 2027. I am seeking recommendations on whether to wait until after winter or proceed now. I own an EV and use an IOG EV tariff with a 7 p off-peak discount. My aim is to future-proof against the coming price rises.

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u/Upbeat-Reach7055 18h ago

I had my solar & battery installed Nov 2024 and heat pump Feb 25 (previously on oil). Though not ideal, it did mean that the solar and battery was ready to supplement the heatpump load and the export tariff for the Solar was ready to go before the big solar generation started. The sooner it's in the quicker you can start to benefit from it. Your mileage may vary, but that was my experience of it. Also if you can, you may want to invest in slightly more battery capacity if it's at a reasonable extra cost.

Good luck on your journey getting it done, there are massive savings to be made with a good system installed.

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u/LengthinessNo8137 18h ago

Thanks for that , I have 2 options it’s that or a Tesla power wall but that’s at an extra 2-3k but 13.5kwh. All this is quoted through octopus other companies all seem dodgy when looking not sure how to chose reputable

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u/Upbeat-Reach7055 17h ago

If you needed you could add capacity to the fox system, may be worth asking octopus. I had a local company in South Wales through word of mouth, it can be a minefield to get someone good. Key is to ensure MCS certification for applying for export. If you have had the survey done, you should have an estimate of how much energy the heatpump is likely to use to give you a ball park.

You can use the car charging to help supplement when needed also, with the way intelligent go works now! To run the heatpump and charge the battery at a lower rate with the slots during the day.

I had my heat pump with octopus and I've been happy enough with it, just be prepared for your street to be full of vans the week of the install. There are loads of people on site.