Clean Power Research launches improved version of SolarAnywhere irradiance resource data service

Facebook
Twitter
LinkedIn
Reddit
Email

Clean Power Research has released its newly improved free, high-resolution solar resource data set, which envelops the entire state of California as part of its California Solar Initiative (CSI) grant. The SolarAnywhere Enhanced Resolution (ER) improves on SolarAnywhere, both of which are web-based solar irradiance data services. The SolarAnywhere ER makes available spatial resolution of 1km x 1km and temporal resolution, or frequency, of 30 minutes.

“It is because of the successful, broad adoption of PV in California that the California Solar Initiative (CSI) has embarked on an effort to support modeling and verification in high-penetration environments,” said Molly Tirpak Sterkel, program and project supervisor for the Distributed Generation and California Solar Initiative at the California Public Utilities Commission (CPUC). “SolarAnywhere ER provides resource data that will enable intelligent planning and operations for the continued growth of solar as part of California's overall energy mix.”

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The data is available free of charge here and contains the time period between 2003 through 2011, available with a one year time lag.

Read Next

August 18, 2026
Windlab & Squadron Energy have referred a 500MW solar-plus-storage site to Australia's federal government for assessment under the EPBC Act.
August 18, 2026
The Australian and New South Wales (NSW) governments have jointly committed AU$2.5 billion (US$1.63 billion) to secure the future of the Tomago Aluminium smelter.
August 17, 2026
CIP has closed at around US$3 billion to develop large-scale energy infrastructure projects across emerging markets.
August 17, 2026
The European Bank for Reconstruction and Development (EBRD) has provided a €120 million financing package for a 342MW solar-plus-storage project in Romania.
August 17, 2026
The ACC voted last week to cut the export rate—the price at which residential solar consumers can sell electricity back to the grid—by 10%.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye