Retrofitting fossil-fuel-based water and space heating with heat-pump systems – a climate change priority or just not feasible?

We know that we have to quickly and drastically reduce the emissions of greenhouse gases into the atmosphere if we want our children to lead a quality life. With quick I mean quick, i.e. within a few years, and with drastically I mean drastically, i.e. down to just 5-10% of present values. Still, on the… Read More Retrofitting fossil-fuel-based water and space heating with heat-pump systems – a climate change priority or just not feasible?

The carbon footprint of electric car batteries

According to a recent Swedish review by Mia Romare & Lisbeth Dahllöf (2017), the production of 1 kWh capacity of lithium ion battery causes emissions between 150 and 200 kg CO2eq/kWh (CO2-equivalent per kWh battery capacity). Calculating with 175 kg, just the batteries of a 100 kWh capacity Tesla Model S account for 17.5 t CO2eq. The footprint of batteries increases… Read More The carbon footprint of electric car batteries