
STG (previously operating as the Solar Turbine Group) is a 501(c)(3) non-profit organization based in Cambridge, Massachusetts whose mission is to provide technical, financial and intellectual support, assistance, and training to projects and organizations focused on bringing sustainable energy technologies to communities across the developing world.
Access to an affordable, distributed, renewable form of energy generation can improve productivity and quality of life in rural villages, clinics, schools, and organizations without increasing their carbon footprints. The development of a solar technology that can be locally customized, manufactured, and distributed will promote local economies while extending energy access beyond the traditional electricity grid.

We have developed a novel solar energy technology that is sized to provide electricity and hot water to off-grid clinics and schools. Since 2005 we have been working with local, regional, and international partners to develop and test this technology in the field in southern Africa. At the same time, technology training for local partners has led to a locally-manufacturable design at a cost competitive with PV panels. We are currently finishing construction of our first user-test installation at the Matjotjo Village Health Clinic in the Berea District of Lesotho.