Applied Power Technologies, Inc. is a certied Technical Coordinator ( TC) for PG&E's Automated Demand Response Program (ADR). APT was con-tracted by the County of Santa Clara as their TC to integrate nine county campuses to automatically reduce demand when required. The County received an immediate cost savings from a lower Time of Use electric rate.

PG&Es Automated Demand Response program funds Lawrence Berkeley National Labs energy audits analyzing building mechanical and lighting systems to nd the best areas for load shedding. This analysis also estimates the kW demand reduction, reserving a nancial incentive for the customer. t

The basic principle behind demand response is that it can be a dynamic means of energy load reduction. When the demand for power peaks (usually caused by high temperatures driving HVAC load) the California Independent System Operator (Cal ISO) energy generation and transmission systems capacity is fully utilized. The utility will notify Demand Response customers to reduce load, eliminating the need to start resource intensive additional power plants. Participation in the Automated Demand Response program means the load shed strategies are precongured into the customers computerized control system, and these load sheds are triggered via a signal from the utility.

Background on Automatic Demand Response

Monthly demand over 200kW 15 minute interval utility meter Internet access Enrollment in a qualified DR program (CPP, DBP, PC, PDP)

County of Santa ClaraSummary

470 Vandell Way, Suite A Campbell, CA 95008 P: (408) 342-0790 F: (408) 378-0797 www.apt4power.com

Case Study:County of

Santa Clara

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Linkswww.apt4power.com

www.demo.apt4power.com/ion

www.sccgov.org

The County of Santa Clara is located at the southern

end of the San Francisco Bay and encompasses

1,312 square miles. Today, the County is a major

employment center for the region, providing

more than a quar ter of al l jobs in the Bay Area.

The County's population of nearly 1.7 mil l ion is one of the largest in the state.

Project Par tners:

County of Santa Clara: Lin Or tega

Global Energy Par tners: Greg Wik ler

Lawrence Berkeley National Labs:

Si la K i l iccoteApplied Power Technologies:

Greg Galvin

Logo

The Automated Demand Response program requirements are:

Applied PowerTechnologies, Inc.

New lighting control panels Wireless control of the lighting Additional programming of existing HVAC build control systems Installation of new wireless thermostats

470 Vandell Way, Suite A Campbell, CA 95008 P: (408) 342-0790 F: (408) 378-0797 www.apt4power.com

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The demand response season for PG&E customers runs during their summer peak season (May 1st to October 31st). In 2009 there were a total of 22 events initiated by the California ISO. Twelve of the events specically called on Critical Peak Pricing customers, including the County of Santa Clara, to participate. The technical incentives in 2009 were up to $300/kW to install equipment that will automatically shed load during events. During peak hours, if an event is called and the customer chooses not to shed load, the cost of energy during those hours can be up to ve times the tari amount.

The value of incentives can add up quickly. For example, one megawatt of demand response can provide up to $300,000 of incentive funding to install new equipment.

Several load shed strategies were implemented at the County in order to achieve the required reduction in load.

Case Study:

Linkswww.apt4power.com

www.demo.apt4power.com/ion

www.sccgov.org

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Program Detai ls :

Campus Detai ls : 9 campuses includingCorrectional Faci l i t ies,

Oce buildings, Maintenance Yard, etc.

Years Bui lt :1959, 1963, 1964, 1972,

1980s, 1990s, 2001, 2002Demand Response

Par t icipation: Cr it ical Peak Pr icing (CPP),

Demand Bid Program (DBP), Automated Demand

Response (ADR).Total est imated load shed:

1225kWNumber of meters in Energy Management

System: 72Total est imated

equipment incentive: $245,000

Total est imated par t icipation incentive:

$49,000

County of Santa Clara

The County has an extensive Energy Management System to isolate individual sites for load verication. During the measurement and verication phase, each building was tested for appropriate response. After the ADR system was brought online successfully, the EMS reports in real time the performance and savings for each Demand Response event. An example load reduction trend below is provided from the EMS.

Using ADR, the County has saved thousands of dollars and tens of thousands of kWH of energy. They also report to the public their reduced carbon emissions, and conserve resources for future generations of County residents.

Applied PowerTechnologies, Inc.