Solarthon is GRID Alternatives' flagship community installation event, a fundraiser and solar block party that brings together people from all walks of life - individual fundraisers, corporate sponsors, job trainees, community leaders and the homeowners themselves - to install multiple solar PV systems in one community.
- Central Coast: May 20th, Atascadero
- San Diego: May 20th, San Diego (El Cajon)
- North Valley : May 20th, Sacramento
- Bay Area: June 10th, Menlo Park