Cheapest off-peak electricity prices

rowan_bradley
Forumite Posts: 6
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in Energy
I have just had a battery system installed. I intended this to be principally used to store excess solar generation and use it when the sun is not shining. But I'm wondering whether it can also be charged up using cheaper off-peak electricty. It seems to me that I should be able to fully charge the battery using the cheapest power that I can find, and use it during the rest of the day. and thereby get most or all the electricity I need at the cheap rate. This seems particularly relevant during the winter when there is little sun.I'm therefore trying to find out who has the cheapest available rate for off peak. I see that Octopus has a tarriff that offers off peak during the night at 5p per unit. Is this the cheapest available? Does anyone offer cheaper? Of course it also depends on the standing charge. If this is excessive it will negate the savings on units.
Thank you - Rowan
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Comments
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The absolute cheapest off-peak electricity is on Octopus Agile, where they occasionally pay you to take electricity off their hands (often called "plunge pricing"). But that's uncommon.Octopus has other tariffs with cheap off-peak periods but they may have other qualifying factors - eg. owning an electric vehicle.I don't think any of these tariffs are as cheap as 5p/kWh at present, although I may be wrong.There are some useful charts at https://energy-stats.uk/ that let you compare Octopus smart tariffs available in each UK electricity supply region.
N. Hampshire, he/him. Octopus Go elec & Tracker gas / Shell BB / Lyca mobi. Ripple Kirk Hill member.Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs.
2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 30MWh generated, long-term average 2.6 Os.0 -
No Octopus 5p kWh off peak tariffs, might be worth a look for more rate certainty than agile.
https://octopus.energy/smart/flux/
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rowan_bradley said:Of course it also depends on the standing charge. If this is excessive it will negate the savings on units.0
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Try looking for E7 tariffsI think....0
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michaels said:Try looking for E7 tariffsAll the E7 tarriffs are much more expensive than Octopus's flexible tarriffs (which can be as low as 7.5p/kWh at nighttime). Do you know of any E7 tarriffs that can beat this?Rowan0
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bristolleedsfan said:No Octopus 5p kWh off peak tariffs, might be worth a look for more rate certainty than agile.I don't need rate certainty, I just need the cheapest rate I can get on average over the year. I will need about 2-3 hours to fully charge my battery. I can write some software to download the rates every day and choose the cheapest timeslots to charge my battery (if the rates change every day, which they do for some of the Octopus taffiffs).Rowan0
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If you live in the East of England I believe EDF has the cheapest night rate on E72
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You're almost certainly better on Octopus Flux for the summer then likely EDF Economy 7 in the winter.0
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rowan_bradley said:michaels said:Try looking for E7 tariffsAll the E7 tarriffs are much more expensive than Octopus's flexible tarriffs (which can be as low as 7.5p/kWh at nighttime). Do you know of any E7 tarriffs that can beat this?RowanI am an Independent Financial Adviser (IFA). The comments I make are just my opinion and are for discussion purposes only. They are not financial advice and you should not treat them as such. If you feel an area discussed may be relevant to you, then please seek advice from an Independent Financial Adviser local to you.1
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dunstonh said:rowan_bradley said:michaels said:Try looking for E7 tariffsAll the E7 tarriffs are much more expensive than Octopus's flexible tarriffs (which can be as low as 7.5p/kWh at nighttime). Do you know of any E7 tarriffs that can beat this?RowanI think....0
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