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$15MM net savings over the25-year life of the projects
Provides the solar powerequivalent of powering 1,000 homes
Reduced peak summer demand ofgrid-generated electricity by 35%
Total solar project savings ofabout $425,000 in the first year
The OpportunityAlameda County officials sought to save money through energy efficiency solutions at many County facilities including the Santa Rita Jail, the Hayward Hall of Justice, the Fallon Street Courthouse, and the Wiley Manuel County Courthouse. ENGIE Services U.S. (ENGIE) was entrusted with retrofitting several buildings covering more than four acres of interior space.
The PartnershipAlameda County partnered with ENGIE to build a program that combined solar electric power and other energy efficiency solutions. Solar electric generation, web-based utility monitoring and new cost-reducing energy equipment was installed. This cost-reducing energy equipment specifically reduced purchases of expensive, peak energy from the local utility.
Additionally, in 2011, ENGIE installed a 2-MW advanced energy storage system and an automatic disconnect switch at the Santa Rita jail facility. The facility evolved into a complete smart grid with congestion, and helped Alameda County meet its energy and environmental goals. The Santa Rita Jail smart grid reduces utility grid peak demand while improving power quality and reliability, increasing grid security, reducing grid full Consortium for Electric Reliability Technology Solutions (CERTS) functionality—meaning, it now has the capability to “island” itself off of the main utility grid and independently generate and store its own energy. The distributed energy control system also serves to dramatically reduce peak demand during normal grid-connected operations or during a demand response event.
3 Dimensions of ImpactENGIE is committed to building three dimensions of impact in every customer’s future:
- Supporting People
- Saving Money
- Protecting the Environment
Each year, over 2.5 million kilowatt-hours of electricity are diverted from California’s electric grid by the Santa Rita Jail project. These savings benefit all state consumers by reducing grid power purchases, most of which occur during peak electrical demand hours—at times when state transmission lines are the most constrained.
The project will save the County $15 million over 25 years. Funding partnerships fostered by ENGIE meant that Alameda County did not have to authorize any General Fund revenues to finance the upgrades. The County’s foresight in saving energy not only protects our environment, it also creates job opportunities in California for the growing energy efficiency industry.
Integrated Program Highlights
Custom-designed solutions and services are critical to achieve Energy Effective™ facilities. To learn more about this integrated program, download the PDF to read the full technical scope.