What are the thresholds in CHOICE for low, medium and high emissions?

At the moment the thresholds are set at 350 CO2e for low, 450 CO2e for medium and 550 CO2e for high, but we don’t have a lot of historical data to base these thresholds on, so we might shift them over time, or even seasonally. Our goal is to give users a realistic view of when emissions are at their worst and we should be working together to reduce our demand, and times when emissions are relatively low so we have as small an impact as possible when we use electricity.