Relevant markets for renewable energies are those parts of an energy system, where renewable energy technologies have already achieved or are set to achieve a significant market share. Policies should be specifically targeted towards them.

In the case of electricity generation, renewables are very present in the form of hydro power. Wind, biomass and biogas as well as solar electricity generation are growing strongly. Geothermal, ocean and other power sources will be tapped where available.

In low-temperature energy services, the solar hot water heater is reaching high dissemination. With appropriate policies, these and other renewable energy technologies (RET), including heat pumps, can contribute on a large scale to hot water, heating and cooling services.

In rural areas of developing countries, a wide variety of technologies and sources is used in various mixes for the different energy services. The policy for these areas has to provide access to modern energy and reduce the harmful impacts of traditional fuels to its user's health and the local environment. New RETs can meet this challenge.

Transport fuel is another distinct field of great opportunities for renewable energies. Policies are required to open and shape the fuel markets. However, policies must also face the issue of competing uses and protection of land and natural resources.

In the future, renewable energy may also enter other markets in a significant manner, for example the gas supply market.