By Rory D. Sweeney

HOUSTON — Texas, which ranks 10th in installed solar capacity among the states, boasts two assets that could see it rise in the rankings.

“We have a lot of sun and a lot of land,” Christine Wright, SolarCity’s deputy director of policy and electricity markets, told a Gulf Coast Power Association luncheon last week. “Those are two key things there that make Texas a great resource for solar.”

Installed solar capacity is growing at a rate of 50% annually, and every time the world’s solar power doubles, the cost of photovoltaic panels falls 26%. In the 15 years since 2000, the industry’s share of generation capacity has doubled seven times, and the average cost for a solar facility in the U.S. was cut more than two-thirds to roughly $3/W.

Although Texas ranks first among states in solar potential, it has only 534 MW installed, putting it behind California, Arizona, North Carolina, New Jersey, Nevada, Massachusetts, New York, Hawaii and Colorado. The state saw $372 million in solar investment in 2015, which was a 48% increase over 2014 spending. While top-ranked California has nearly 25 times more installed capacity than Texas, Wright said ERCOT expects solar capacity to grow by a factor of 50 by 2030.

Wright said the driving forces are cost stability and customers’ demand for independence from the grid. Since solar incurs very few costs after installation and no fuel expense, it can act as a hedge against increasing energy bills. Wright referenced a 2015 Gallup poll that found approximately 80% of respondents preferred more emphasis be put on developing solar infrastructure.

Tax incentives add to the appeal. Congress extended the solar investment tax credit through 2023, and the state’s property-assessed clean energy program allows local governments to help residential and commercial applicants to secure loans for solar projects in exchange for an increased property tax assessment.

The state has enacted favorable legislation, Wright said, such as SB1626, which reduces builder restrictions on solar development, and HB706, which simplifies property tax form filing. But “we have seen that policymakers in other states don’t always make decisions that are consistent with customer demand,” which is why she said the industry needs to maintain an active education campaign. In Nevada, for example, rooftop solar drove $833 million in investment in 2015 but ground to a near halt after the state Public Utilities Commission promulgated rates that increased the bills for solar customers by more than 50%, she said.

She acknowledged that issues will arise as the industry gains market share, but that they are known. Efforts are being made to collect necessary data and address “growing pains,” she said, citing ERCOT’s formation of the Distributed Resource Energy and Ancillaries Market Task Force.