Octupus v Eon solar and battery quote

[Andy Gosling]

Out of the 2, Eon is better.

How many sides of the roof are you installing on? A wet finger in the air estimate puts it £3-4k too expensive.

I would recommend quotes from a couple of well rated local installers

[Anna Bale]

A bit pricy in my opinion and would suggest to get local installers to quote. Where are you located located???

Also worth watching Gary does solar videos on YouTube as explains what to look.

[Chris McDade]

Firstly, find your daytime peak usage.

Secondly, assume solar will reduce that by half

Thirdly, for each remaining kWh of daytime usage, assume a battery can save you about 19p per kWh giving an annual saving

Fourthly, compare that to the price you are paying for the batteries by getting an itemised quote

Finally, assume that exporting from a battery is no longer economic and that tariffs will change over time. There are no guarantees, but I’d say you are on safer ground with panels than batteries

[Ed Nelson]

in general utility company quotes are high and limited in terms of what you can get and how it meets your needs.

So I’d suggest you’re better off looking for an installer yourself. Start by doing a search of the group for local areas as there’s generally a couple of others who’ve asked similar, and if you ask on their posts you may be able to get feedback on companies they’ve already spoken too (especially the ones to avoid)

If that doesn’t pan out, have a read of this. It includes links to a couple of sources to select suppliers in your area (MCS database and the Renewables Installer Finder from the Energy Savings Trust). It also gives pointers on how to do additional checks & protection if you decide to go ahead

Also one of the best ways to get a good quote is to have an idea of what you need. This needn’t be difficult and only takes a moment to get some meter readings as described in this post (5 minute read). It will walk you through taking the measurements and converting them into solar and battery requirements, which can then be used to help with quotes and avoiding any sales patter. It will also help with selecting a supplier

Lastly, if you’re considering a switch to Octopus, please consider using a referral link in the pinned referral post. You & the referrer will get £50 account credit. Obviously I’d prefer if you used mine or Rob’s, but any one will do. You’ll likely have to call as Octopus have disabled online switching, but if you tell the on the call that you have a referral they will use it

[Harry Johnson]

The price from Octopus is pretty much what we were quoted for a similar looking system. In the end I found a local company (ironically on Octopus installer list) and they quoted me the same panels, but with a bigger inverter, sigenergy batteries and a full home backup for £1500 less. If I have gone with a lesser beam it would have been cheaper still, however I really like the Homeassistant integration with the sigenergy stuff – despite it being expensive…

They did a really nice install too.

[Jeff Winters]

Prices average for solar is £1000 kWp, if we take EON Quote 8.550kwp £8550 and battery £500 kWh is average 15kwh is £7500 so quote is below average, but prices are falling.

[James Hall]

the price seems expensive. My system was 13.5K

12kw Sig hybrid inverter, 23 aiko 510w 2x Sig 10kw batteries and the new full back up gateway .Included North and South facing scaffolding to a 3 storey house.

[John Horton]

What area are you? Go local i got 16 panels, 6kW inverter and 12kWh battery for £8400!

[John White]

Personally I would go big on the battery. Daily use plus 20% charge the batteries up at night in winter for 1/3 price.

[Keith Manning]

Definitely worth getting local company quotations as the energy companies don’t seem to be that cheap, plus I’ve seen some of their designs and calculations and they don’t look very accurate!

(From the ones I’ve seen anyway)

[Kevin Barber]

For a local-ish installer near Cambs try a quote from

Optimum Electrics in Peterborough. Excellent workmanship, honest and no pressure selling. They installed the system at my church (in Warks). As an electrical company they have access to a range of brands including SigEnergy, and they have a roofer in the team for proper treatment of your roof.

[Nicholas Carey]

Both are fairly similar on price, but the EON quote looks better value overall – bigger inverter and much larger battery (15kWh vs 10kWh) for basically the same cost. Your Octopus quote isn’t crazy, but they’re often a bit pricier than average. If you’ve got a PHEV, the extra battery with EON will likely benefit you more, but I’d still get 1–2 more quotes to be sure.