Consultancy

THE FACTS

  • Probably the biggest transfer of wealth every day is when we pay our energy bills to foreign countries.
  • Turning down thermostats by 1oC, householders could cut heating bills by 10%.
  • Lighting accounts for 19% of the world's electricity consumption.
  • Cities are responsible for approximately three quarters of the world's energy consumption.
  • In the UK we have 40% of Europe's total wind energy.
  • The business and public sectors generate over one third of UK CO2 emissions.
  • A 100W incandescent light bulb powered from the national grid left on for just half an hour creates enough CO2 to fill a party balloon.
  • Two thirds of greenhouse gas emissions today are from energy.
  • By upgrading your heating controls, you will improve the efficiency of your heating system and can cut heating costs by up to 17%.
  • When a coal power station burns coal only about one third of the energy it produces is used. The rest is wasted into the atmosphere.
  • Typical heat loss in an existing building:
    • 35% - Ventilation and air infiltration (Worst)
    • 26% - Windows
    • 22% - Roof
    • 9% - Walls
    • 8% - Floor (Best)
  • CO2 emissions factors for different fuels KgCo2/kWh:
    • 0.018 Waste heat (Best)
    • 0.025 Biogas/Biomass
    • 0.194 Natural Gas
    • 0.234 LPG
    • 0.265 Oil
    • 0.291 Coal
    • 0.422 Grid supplied electricity (Worst)
  • All the electrical energy used in buildings is eventually converted into heat.