Renewable Heating – Wood Pellets have a carbon emission figure of 0.04 kg per kWh. This helps an organisation calculate carbon savings against oil or gas.
A home can work out how much carbon they are saving and understand why the Renewable Heat Incentive has been developed.
This compares against other technologies:
Heat pump with a COP ratio (see previous article) of 6:1 then the carbon emissions would be 0.53/6 = 0.09kg per kWh.
Heat pump with a COP ratio of 3:1 then the carbon emissions would be 0.53/3 = 0.18kg per kWh.
Oil is 0.265kg per kWh
Gas is 0.194 per kWh
If you are currently on Oil heating and use 20,000 kWhs of heat per year (average house) by converting to wood pellets you would save:
(0.265-0.04) kg per kWh ie 0.225kg per kWh
There are 20,000 kWhs in this example so a carbon saving of 4500 kgs per annum.