Home energy
Replace a gas boiler with a heat pump
Saves 900–2,200 kg a year · estimateBig projectBig purchase
Dashboard
You’re looking at an example journal. Take the calculator to make it yours.
Each ring is a month, oldest at the centre. Wider rings mean heavier months.
Home energy
Every project says whether it removes or avoids carbon, and for how long it stays put.
Last 12 months
t CO₂e
September 2026
t this month
vs Europe average
t below
September 2026: Home energy 0.08 of 0.47 tonnes.