Carbon emissions accounting ‘inaccurate’ without time data

The way carbon emissions from buildings and businesses are measured produces misleading results as it does not take account of when electricity is used, a study by consultancy WSP|Parsons Brinckerhoff has revealed.

The current system uses a single number for calculating the CO2 emissions of energy used. For example, the climate change levy is charged on per kWh amount of electricity or gas used, regardless of when. UK building regulations and the greenhouse gas (GHG) protocol take the same approach.

But the CO2 emitted can differ massively depending on time of day, season and ...

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