Metropolitan Water District dedicates 1-MW solar power plant at water treatment facility


The Metropolitan Water District of Southern California has dedicated a 1-MW photovoltaic power station at the Robert A. Skinner Water Treatment Plant in Riverside County. The 10-acre solar field, which was built by SunPower, will generate about 2.4 million KW-hours of electricity, which will be equivalent to about 25% of the annual power needs of the facility.

The PV system is comprised of 4620 230-W SunPower monocrystalline-silicon-based panels mounted 10 at a time on 462 of the solar company’s T20 single-axis trackers, which will track the sun over the course of the day from east to west, according to MWD spokesman Bob Muir. The four quadrants of the field are each tied to one of four SMA 250-KW inverters installed for the project.

Muir told PV Tech that preliminary design work on the project began in June 2007, with the final design coming in November of that year. SunPower was awarded the contract in July 2008 and broke ground on the installation in January 2009. The facility started generating power this month, with Southern California Edison (SCE) officially accepting the system on May 14.  

Debra Man, MWD assistant general manager and chief operating officer, said generating solar power at the Skinner plant is part of a strategic power plan to be considered by its board this summer. The plan envisions the district having 10 MW of solar installed throughout its six-county service area over the next five years.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

“The proposed plan will outline a number of energy-saving strategies at our facilities, while laying out immediate, short-term, intermediate, and long-term goals,” she said. “The plan’s goal will be to maximize carbon reduction at all our distribution facilities and develop renewable energy to support deliveries on the Colorado River Aqueduct.”

Man noted the $10 million solar facility is expected to pay for itself in six to eight years or sooner, since the solar plant would operate during peak demand periods when electricity costs are the highest. MWD will receive more than $5 million in rebates from SCE during the first five years of operation. 

Read Next

July 22, 2024
Indian power company JSW Energy's renewables generation has increased by over 40% for Q1 FY2025, but solar's generation dropped by 2.7%.
July 22, 2024
Soltec has launched 4x4, a new foundation option for its SFOne range of trackers that aims to improve the flexibility of the range.
July 22, 2024
Australian Silica Quartz has started drilling at the Quartz Hill project which could provide the minerals for Quinbrook's polysilicon plant.
July 22, 2024
The amount of residential solar paired with a battery energy storage system (BESS) in California has increased notably under the state’s new net energy metering 3.0 (NEM 3.0) scheme.  
July 22, 2024
Masdar has raised US$1 billion in green bond financing to support the development of new clean energy projects.
July 22, 2024
Renewable energy developer Acen Australia has submitted the scoping report for its 100MW solar-plus-storage project in New South Wales.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
July 31, 2024
1:00 PM (BST) / 2:00PM (CEST)
Solar Media Events
September 24, 2024
Warsaw, Poland
Solar Media Events
September 24, 2024
Singapore, Asia
Solar Media Events
October 8, 2024
San Francisco Bay Area, USA