25,515
systems installed
Our mission
Our focus areas
Our impact
25,515
systems installed
3.43B+
kW installed
$891M+
lifetime energy savings
2.4M+
tons of greenhouse gas emissions prevented
35K+
people trained
Our approach
We work alongside the people and partners closest to the opportunities and challenges of the clean energy transition. Their knowledge, priorities, and leadership help shape our programs, partnerships, and policy work.
That approach reflects our broader commitment to equity, inclusion, and diversity — within GRID, in the communities we partner with, and across the clean energy industry.
Our organization
GRID Alternatives was founded during California’s 2001 energy crisis by engineers Erica Mackie and Tim Sears, who were working on large-scale renewable energy projects in the private sector at the time. The idea driving them was simple: free, clean electricity from the sun should be available to everyone. GRID completed its first single-family solar installation for the Murphy family in the Bay Area in 2004. In 2008, after California modeled its statewide Single-family Affordable Solar Homes (SASH) program on GRID’s pioneering work, the California Public Utilities Commission selected GRID to manage the program, a role that helped expand GRID’s reach across the state.
Today, GRID works to expand access to clean energy, clean transportation, and career opportunities while advancing policies that make those benefits more equitable. Through installations, technical assistance, workforce training, contractor services, and partnerships, GRID’s work reaches communities across the United States, including Puerto Rico and Tribal communities nationwide, as well as communities in Mexico.

Meet the founders
Renewable energy should reach the people it helps most.
2026
Jaime Alonso
2025
Pablo del Aguila
2023
Tanski Clairmont
2019
Erica Mackie
2017
Anna Bautista | U.S. DOE + MIT Energy Initiative
2017
Erica Mackie
2017
Erika Symmonds
2015
Stan Greschner
2014
Tim Sears
2013
Erica Mackie