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Battery storage without solar panels?
Battery storage
I live in a 5 bedroom semi, use between 20 and 29kwh per day, which is charged at approx 22/23p per kWh. Which costs me about £150 a month.
I’m looking to install batteries, depending on physical size of around 30kwh to sustain the whole house for a day so that I can then change to a cheaper night rate, charge up and consume during the day. Which is then around 9pkwh. Saving me about £100 per month.
I’m not looking at solar yet but this could be an option, yet orientation of house roof is north west to rear and south east to front.
I’m researching at the moment so hopefully you guys can help me
1. Is 30kwh reasonable?
2. What recommended batteries do you suggest I look into?
3. Anyone from the North east recommend installers to review?
4. Anything I should be thinking about in addition to this?
Thanks.
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8 Replies
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I’ll be honest go for the full system including solar
I have 19kw storage plus 9kw solar best thing I did but I would love another battery
Look at sigenergy supposed to be very good
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I’d at least get a quote on Solar. My electric bill is negative (they are paying me) from April through October.
and although it seems common sense to size your battery for your maximum useage, it isn’t always.
If you do have solar, you only need the battery to get you through the night and for odd patches of peak useage, so the extra battery capacity isn’t doing anything to pay for itself in summer. Even if you don’t have solar, if you go for 20kwh of battery, it’s paying for itself every day. But if you have 30, then the extra 10kw/h is only saving additional money on some days, and may never pay for itself.
Me, I went for enough battery to cover most days, but not the higher useage days, and plenty of solar. My electricity bill, over a year, is negative, and pays for a chunk of the gas bill for the central heating.
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Worth adding even 4 panles on a garage to get VAT free installation.
A 30+ KWh battery is now not that costly.
Should be able to get it installed for £6k.
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Get solar and 15kwhof batteries and you’d still save a packet
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The savings compound, so get Solar & Battery. You are probably best with 5 kW Solar & 10 kWh of battery. About £10+k & will save you £120 pcm = £1440 p.a.
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Tesla batteries are very good. I bought mine for the power cut protection primarily. Not all batteries do that. But using octopus go it saves loads of money too. You can talk to octopus for solar or just battery installation.
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A lot of this is a misunderstanding and if you’re still talking to your neighbour, just have a conversation and you can both get the most out of the situation. If you go down the legal route you’re going to start incurring a lot of extra fees.
Party wall surveyor alone will cost a minimum of 4k and if you start down the road of solicitors it will be even more.
Just to answer your question yes both of you should have issued each other a party wall letter because you’re both within 3m of eachother.
Have a sit down and try to be civil, just to get the extensions built.
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30kWh seems reasonable for your usage if you want to run most of the house during the day from cheap night charging. Batteries like GivEnergy, Tesla Powerwall, or BYD are worth looking at. Just make sure the installer checks inverter compatibility, space for the batteries, and DNO requirements. Solar could still be added later even with that roof orientation.
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