Valuation of solar plus storage in Hawaii

Clean Power Research recently took on the challenge of developing a new methodology for performing a hybrid solar plus storage (solar + storage) valuation study for systems in Hawaii. The methodology was commissioned by the Interstate Renewable Energy Council, Inc. (IREC) to help lay the groundwork for mitigating current challenges associated with high penetrations of … Continued

Lessons from SEPA’s Utility Solar Conference Part 1: Get electric rates right to fill the belly of the duck

The Solar Electric Power Association’s (SEPA) annual Utility Solar Conference (USC) is the premier utility solar conference in the United States, and the in-depth discussions between utility and industry leaders can be counted on to portend where solar is heading. At this year’s event, held in San Diego, two topics stood out: Utilities should “get … Continued

Connecting 150,000 solar customers to PG&E’s electric grid

This week, Pacific Gas & Electric (PG&E) announced a major milestone: connection of 150,000 solar customers to their electric grid. This achievement is the result of PG&E’s long commitment to supporting their customers going solar, and comes with some pretty amazing stats*: Today PG&E has more solar customers than any other utility in the U.S. … Continued

Solar + storage in Hawaii: Making cents of time-of-use economics

As Hawaii works through a host of complex interconnection issues, the solar industry is taking a fresh, new look at energy storage. Grid-connected storage has been around for years, promising a wide array of uses—from energy arbitrage and frequency regulation, to spinning reserve. It also has the potential to make a 100% renewable grid technically … Continued

When it comes to solar resources, 2014 was anything but average

Solar resources naturally vary from year to year, and 2014 was no exception. While the 2014 average monthly solar resource map shows expected patterns, with the greatest energy output in the southwest, the real story is revealed by the PV power variance map. The PV power variance map, which highlights how the average energy production in … Continued