Pure Energies, based in Canada with a significant US presence, effectively acts as an online advisor to homeowners considering installing solar panels on their roof, providing a rapid analysis of their home’s energy needs and what sort of PV system it could economically accommodate.

“Buying [solar] over the internet is the acquisition channel of choice in particular for the younger generation of Americans for whom commitment to a sustainable lifestyle is a fundamental part of their DNA,” says NRG Energy chief executive David Crane.

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