Envision Solar, a San Diego firm that makes sun-tracking parking lot products that charge electric vehicles, announced record revenues Thursday.

The company reported $2.6 million in revenue last year, up 156 percent from $1.03 million in revenue in 2014. However, Envision is still operating on a net loss. The company reported a $1.8 million net loss for 2015, compared to a $3.1 million net loss in 2014.

Revenues earned were primarily from the production and delivery of the company's EV ARC products, a portable and compact solar charging station that can fit within a single parking space. They can generate enough electricity to provide up to 150 miles of range a day.

A significant portion of 2015 revenues were derived from sales to Google and the State of California, according to an Envision news release.

"The team is executing and our strategic plan is bearing fruit," said Desmond Wheatley, CEO of Envision Solar, in a statement. "It's pretty simple: sales lead to more sales and higher volumes lead to increased efficiency and reduced costs. We are targeting rapid growth verticals with unique products, which deliver real value both in the U.S. and overseas. I am confident that we will continue to experience growth and I believe that it will accelerate as we break new barriers such as our recently announced overseas delivery."