All new homes built in Germany from January 1st, 2009 will be required to install renewable energy heating systems under a new law called the Renewable Energies Heating Law.

The government is allocating 350 million Euros [US $517 million] each year in grants for homeowners to install renewable energy systems such as solar panels, wood pellet stoves, boilers and heat pumps.

Homeowners will have to use renewable energy sources to meet 14% of a household's total energy consumption for heating and domestic hot water. This law demonstrates the massive impact that national governments can have in pushing green technologies, and represents a model other nations can follow.

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