EcoBuilder

Build a sustainable city by mastering renewable energy unit conversions

Welcome to EcoBuilder!

Build a sustainable city powered by renewable energy. Convert energy units correctly to optimize your city's growth and minimize environmental impact.

Select Difficulty:

How To Play

Build renewable energy sources and sustainable infrastructure. Balance energy production and consumption while growing your population. Complete unit conversion challenges to earn eco-credits and advance your city!

Renewable Energy Conversion Facts

  • 1 kilowatt-hour (kWh) = 3.6 megajoules (MJ)
  • 1 megawatt (MW) = 1,000 kilowatts (kW)
  • 1 gigawatt-hour (GWh) = 1,000,000 kilowatt-hours (kWh)
  • 1 kilowatt-hour (kWh) of electricity from solar panels saves approximately 0.85 kg of CO₂ compared to coal
  • 1 British thermal unit (BTU) = 0.000293 kilowatt-hours (kWh)