I've just done a quick calculation for my tank. One 130l planted tropical.
My costs line up with the above examples too.
I am on a capped fixed price contract.
If I didn't have the tank I would still use apx. 1500kWh per quarter, this is more than the higher priced tariff £0.28 for the first 225kWh so this means my tank is running using the lower tariff of apx. £0.12235 (I think)
I've worked out I'm using apx. 0.105kWh
Multiplied by the tariff equals £0.01284675 per hour. £0.31 per day. £112.00 per year.
I've assumed my heater is on apx. one third of the time, I could be wrong here.
This is only for the everyday running of the tank. when a water change is performed the cost increases significantly as you either use the kettle etc. to pre-heat the water or the heater in the tank works continuously until the water is at the required temperature.
Regards
PJPJ
My costs line up with the above examples too.
I am on a capped fixed price contract.
If I didn't have the tank I would still use apx. 1500kWh per quarter, this is more than the higher priced tariff £0.28 for the first 225kWh so this means my tank is running using the lower tariff of apx. £0.12235 (I think)
I've worked out I'm using apx. 0.105kWh
Multiplied by the tariff equals £0.01284675 per hour. £0.31 per day. £112.00 per year.
I've assumed my heater is on apx. one third of the time, I could be wrong here.
This is only for the everyday running of the tank. when a water change is performed the cost increases significantly as you either use the kettle etc. to pre-heat the water or the heater in the tank works continuously until the water is at the required temperature.
Regards
PJPJ