Monday, 11 July 2011

Carbon Footprint of Electricity Generation

From the Parliamentary Office of Science & Technology, has come a fine, if rather unexpected, report on carbon emissions from electricity. You can find it here.

While we don't agree with every detail, it is refreshing to see an impartial and balanced piece of work that is grounded in scientific references, and all this produced by a branch of government!

CCC take note.

It's the first time we've seen anyone in government acknowledge that lifecycle emissions from LNG are very significantly higher than regional pipeline gas, but even more significantly (whisper it quietly) that lifecycle emissions from residential solar PV - that greenest of green - are subject to a wide range of values. In fact the UK average for PV, at around 88gCO2eq/KWh, is actually slightly higher than the calculated lifecycle emissions of wood chips from the US South converted to electricity in the Tees Renewable Energy Plant.

Meanwhile the median lifecycle emissions of coal fitted with Carbon Capture and Storage is expected to be about 200 gCO2eq/KWh - well over double MGT's estimated level for port based biomass plant (using sustainable wood chips), and significantly higher than the necessary system average if the UK is to hit its legally binding Greenhouse Gas targets in 2050. Somebody had better tell the Committee for Climate Change.

MGT has been a big supporter of mandatory sustainability criteria and maximum lifecycle GHG emissions for biomass, and we are very pleased to see them pass into law in the UK. All we want now is a level playing field and impartial, critical thinking from those tasked with guiding us towards our low carbon future – too much to ask?

No comments:

Post a Comment