FAQ About Solstice Where Are Solstice’s Community Solar Gardens? Where Are Solstice’s Community Solar Gardens? Solstice has worked on 17 community solar projects serving a network of 20,000 customers across New York, Massachusetts, New Jersey, and Washington D.C. In 2019, the company will be expanding its services to California. in About Solstice Related Articles Does Solstice Provide My Electricity? Does Solstice Build Solar Gardens? Where Are Solstice's Community Solar Gardens? What Does Solstice Do?