Integration properties of disaggregated solar, geothermal and biomass energy consumption in the U.S.

► Increasing importance of renewable energy sources. ► Integration properties of solar, geothermal and biomass energy consumption in the U.S. ► The results show differences in the order of integration depending on the type of energy. ► Structural breaks traced for these energy types affect the order of integration. ► The order of integration is less than 1, so energy conservation policies are transitory.