California Sen. Josh Becker (D-San Mateo) introduced Senate Bill 49, a bill incentivizing solar carport development, at the State Capitol on Monday.
“Solar farms use a tremendous amount of land, but that type of open space either isn’t available or is tremendously expensive in cities and suburbs that use the most power,” Becker said. “That’s what makes the solar canopy concept so appealing because it wouldn’t require any more land, it would just give parking lot owners an incentive to make dual-use of their lots by essentially putting a miniature power plant above all those cars.”
The bill would create a tax incentive for companies to build solar canopies in large parking lots to boost the local clean electricity generation, avoiding more solar development on land. According to a report from the Lawrence Berkeley National Laboratory, pavement makes up 35%-50% of the total surface area in cities, and 40% of that pavement is parking lots.
Last month, France passed legislation requiring all parking lots with more than 80 spaces to be covered by solar panels. The French government estimates its plan could generate up to 11 GW of electricity. This past March, Washington Gov. Jay Inslee signed a bill letting businesses that put up solar canopies in large-scale commercial parking lots and similar areas pay the sales and use taxes associated with buying the equipment over an eight-year period instead of having to pay them all upfront.
Los Angeles County has an estimated 101 square miles of parking lots that could produce an estimated 6.5 GW of power if they were covered by solar canopies. Given Los Angeles County is home to about 25% of the state’s population, that could mean almost 26 GW of solar could be available through these solar canopies.
California’s energy agencies estimate the state needs about 110 GW of new solar power to meet its 100% clean energy target by 2045. If half of the state’s parking lots were covered with solar canopies, that would provide 13 GW of power — more than 10% of the new solar needed.
“This is one of the many tools we’re going to need to use to hit our targets of using 90% clean energy by 2035 and achieving 100% carbon neutrality by 2045,” Becker said. “In my view, this is relatively low-hanging fruit. We’ve got the land available — now the challenge is to make better use of it.”
SB 49 will be assigned to a Senate policy committee where it will be heard in early 2023.
News item from the California State Senate
“Big Box” stores roofs need to be incentivized or coerced to be covered in solar panels. It is a huge amount of real estate that is wasted otherwise, and would require adding less additional structuring to obtain the goal. In addition, the parking lot and rooftop panels could be designed to collect rain water. Most of the roofs in big box stores that I have visited in So Cal need renewal anyway, since they ALL seem to leak water in the slightest rain. The electricity produced by this means, as well as residential solar panels is especially helpful to the grid since it is produced near where it is needed, thereby reducing strain on the grid. The short sighted government of California needs to fully reward individuals and businesses for producing such clean electricity instead of REDUCING the reward under the fall guise of “Equity”, when it is simply a veiled handout to the electric companies and labor unions.
The other benefit of this solar canopy concept is that it will also shade the asphalt in these areas also to keep the temperatures lower allowing a quicker cool down at night. It would be interesting to see how much of a temperature reduction this would have if all 101 square miles in LA county alone was covered.
“Los Angeles County has an estimated 101 square miles of parking lots that could produce an estimated 6.5 GW of power if they were covered by solar canopies. Given Los Angeles County is home to about 25% of the state’s population, that could mean almost 26 GW of solar could be available through these solar canopies.”
The extra large scale energy storage is generation agnostic and a more subtle plan to use this energy storage for overnight energy shuttling and storage should also be implemented so any generation any time from any resource can be more efficienty used, if not “right now” then store, time shift and dispatch later.
““This is one of the many tools we’re going to need to use to hit our targets of using 90% clean energy by 2035 and achieving 100% carbon neutrality by 2045,” Becker said. “In my view, this is relatively low-hanging fruit. We’ve got the land available — now the challenge is to make better use of it.””
The really big question right now is while “moving towards this mandate” of decarbonization, and average electricity rates quickly approaching $0.35/kWh, how high will electricity rates go to meet that last 10% decarbonization by 2045? It could be possible $0.40/kWh, $0.50/kWh or even up to $1/kWh by 2045, who will be able to afford this cost in the desert southwest where summer electricity would cost something on the order of $6,000/month just to keep one’s home comfortable enough to sleep during those four hottest months of the year.