Energy Blue Print
Japan 2012

Moving from principles to action for energy supply that mitigates against climate change requires a long-term perspective. Energy infrastructure takes time to build up; new energy technologies take time to develop. Policy shifts often also need many years to take effect. In most world regions the transformation from fossil to renewable energies will require additional investment and higher supply costs over about twenty years

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1.7 japan: heating and cooling supply

Renewables currently provide 3% of Japan’s energy demand for heat supply, the main contribution coming from biomass. Dedicated support instruments are required to ensure a dynamic future development. In the Energy [R]evolution scenario, renewables provide 52% of Japan’s total heating and cooling demand in 2050.

  • Energy efficiency measures can decrease the current demand for heat supply by 38%, in spite of improving living standards.
  • For direct heating, solar collectors, biomass/biogas as well as geothermal energy are increasingly substitute fossil fuel-fired systems.
  • A shift from coal and oil to natural gas in the remaining conventional applications will lead to a further reduction of CO2 emissions.
  • The Advanced Energy [R]evolution case introduces renewable heating and cooling systems around 5 years ahead of the Energy [R]evolution scenario. Solar collectors and geothermal heating systems achieve economies of scale via ambitious support programmes 5 to 10 years earlier and reach a share of 36% by 2030 and 71% by 2050.