The US-based energy company NRG Energy and US-based spatial information company back Geostellar, which opted for strategic and angel backing, with no traditional venture firm support in its $14m round.

US-based energy company NRG Energy and US-based spatial information company GeoEye have backed Geostellar, a US-based company which determines the value of solar energy generation. Terms were undisclosed, but news provider VentureWire said it had raised $14m.

The round was joined by the State of Maryland and angel investor Flash Forward Ventures.

In 2011 Geostellar raised $2m from Flash Forward Ventures. David Levine, chief executive of Geostellar said it was the third company he had founded, and also the only…