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Solar and Storage – February 2025 Energy Usage + Saver Sessions

There were a number of Saver Sessions during the month of February, but more on those later.

February Electric:

I managed to maintain a 39% Peak/Off-Peak ratio, which is an improvement on last month’s 46%.

Electricity costs for the month of February: £210.21 for 2025, £401.60 for 2024 and £692.51 for 2023 – some great on-going savings.

Electricity demand for the month of February: 1321kWh for 2025, 1581kWh for 2024 and 1875kWh for 2023.

The additional savings for this year are almost entirely down to the Solar and Battery as I was on the same tariff last February as I am now, I used 200kWh more electricity, yet it cost me about 50% less.

This can also be seen in the month on month usage vs cost graphs

February Gas:

Gas costs for the month of February: £201.76 for 2025, £166.00 for 2024 and £339.41 for 2023.

Gas usage for the month of February: 3061kWh for 2025, 2236kWh for 2024 and 3378kWh for 2023.

No significant saving vs last year, however quite a lot more gas consumed and associated savings were as a result of being on the Octopus Gas Tracker tariff vs the Octopus Standard Gas Tariff.

Again all visible in the usage vs cost graphs

Some of this may be down to the average daily temperature differences,  2024 on the left, 2025 on the right, this February being a fair bit colder than last year.

I will continue to compare to my old 2023 E-ON Prices for ongoing savings which for this month amount to £212.96.

There were four Saver Sessions this month, 12/2, 17/2, 18/2 and 25/2, my Home Assistant automation signed me up to all of them automatically

I received notification about all of these sessions via emails sent round midday of the day in question.

The first one was between 17:30 and 18:30 of the 12th February, offering 96 Octopoints (12p) per kWh saved.

The second one was between 17:30 and 18:30 of the 17th February, offering 104 Octopoints (13p) per kWh saved.

The third one was between 17:00 and 18:00 of the 18th February, offering 104 Octopoints (13p) per kWh saved.

The third one was between 17:30 and 18:30 of the 25th February, offering 104 Octopoints (13p) per kWh saved.

Since these were all offering less than my export guarantee and way less than the peak rate, I made no effort to charge the batteries beforehand, or discharge them during the sessions

As a result some of my savings were somewhat low.

I managed to save a massive 0.33kWh on the 12th, which netted me 32 Octopints (£0.04).

I saved nothing at all on the 17th.

The 18th happened to be a sunny day, so my batteries were charged up and so I saved 2.08kWh which earned me 216 Octopoints (£0.27).

The 25th was also a sunny day, and like the 18th, my batteries carried me through for a saving of £2.15kWh which earned me 224 Octopoints (£0.28).

The savings were really not worth bothering with, beyond earning a free hour of electricity.

All of these sessions were offering less than half of the lowest rate offered last month