It’s now 3 years since I became an Octopus Energy customer. Each month I’ve been noting the average unit rate from my electricity bill. These average rates vary monthbymonth as I’ve always been on a smart tariff where the price is different at different times of day, and thus my average rate varies depending on how my consumption is divided between different times of day
Month  Year 2018/19  Year 2019/20  Year 2020/1  Year 2021/2  Year 2022/3 

November  14.27 p/kWh  8.96 p/kWh  6.69 p/kWh  7.37 p/kWh  12.75 p/kWh 
December  10.17 p/kWh  6.51 p/kWh  9.61 p/kWh  7.66 p/kWh  14.26 p/kWh 
January  6.86 p/kWh  9.74 p/kWh  8.32 p/kWh  15.36 p/kWh  
February  5.59 p/kWh  11.18 p/kWh  6.93 p/kWh  11.36 p/kWh  
March  5.02 p/kWh  8.85 p/kWh  6.88 p/kWh  10.14 p/kWh  
April  8.35 p/kWh  8.74 p/kWh  7.36 p/kWh  9.33 p/kWh  
May  4.48 p/kWh  11.50 p/kWh  6.36 p/kWh  8.59 p/kWh  
June  7.03 p/kWh  3.49 p/kWh  12.52 p/kWh  9.48 p/kWh (part old Go at 7.5 p/kWh) 11.28 p/kWh (part new Go at 9.5 p/kWh) 

July  8.20 p/kWh  4.40 p/kWh  15.60 p/kWh (part) End Agile / Start Go 5.92 p/kWh (part)  10.09 p/kWh (new Go with 7.5 p/kWh overnight)  10.62 p/kWh (to 30/6) 10.39 p/kWh (from 01/07) 
August  6.29 p/kWh (part) 5.99 p/kWh (balance)  6.15 p/kWh  6.19 p/kWh  11.82 p/kWh  11.63 p/kWh 
September  5.63 p/kWh  7.62 p/kWh  6.30 p/kWh  11.07 p/kWh  13.41 p/kWh (to 15/09) 12.66 p/kWh (from 16/06) 
October  6.86 p/kWh  6.97 p/kWh  6.83 p/kWh  13.76 p/kWh  13.66 p/kWh 
For most of this time I was on a very complex tariff called Octopus Agile which is directly linked to wholesale prices and, while historically that has been very good value, rising wholesale prices recently have caused that tariff to get increasingly expensive and so I’ve switched to Octopus Go which provides a 5 p/kWh incVAT night time rate for 4 hours. This is ideal for charging our electric cars and also the home battery if the next day’s solar production looks as if it will be limited.
Both of these tariffs are socalled smart tariffs enabled by smart meters. Some people can be very negative towards smart meters and indeed smart tariffs, but based on my experience it seems to me that if you have some flexibility to move electricity consumption to offpeak periods these can be excellent value for money.
I currently use the FiT revenue from my solar panels (about £700 annually) to offset my energy bills and am left paying £20/month towards household energy. I also earn a little income from referrals.
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