#ConnWeek

Demand ResponseC&I Case Studies

#ConnWeek Santa Clara, CA May 22-24, 2012 2

C&I Case Studies

The following case studies were performed at small facilities that typically would not be a good fit for Demand Response.

•Two Fitness Centers •Small Retailer•Automobile Dealership•Small Office Building

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The Sites

Ace Hardware ACE Hardware Packaged Rooftop AC

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The Sites

Gold’s Gym Gold’s Gym Packaged Rooftop AC

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The Sites

Gold’s Gym #2 Gold’s Gym Packaged Rooftop AC

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The Sites

Chevrolet Dealership Chevrolet Dealership Packaged Rooftop AC

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The Sites

Office Building Office Building Packaged Rooftop AC

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REGEN Equipment

Site Name # of AC Units with controllers

ACE Hardware 4

Fitness Center 14

Fitness Center #2 14

Chevrolet Dealership 11

Office Building 9

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Site Monitoring

Power recorder mounted next to electrical panel on roof.

Hobo temperature logger attached to thermostat.

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Customer Comfort

Responses to Baseline Day: How comfortable are you with the temperature today at work?

Normal Operation 1) Definitely too cold or 2) A bit chilly

3) Just right / OK

4) A bit warm

5) Definitely too hot Total

Business Count % Count % Count % Count % Count % ACE Hardware 0 0% 1 9% 0 0% 0 0% 1 9%

Fitness Center 0 0% 1 9% 0 0% 0 0% 1 9%

Fitness Center #2 0 0% 2 18% 1 9% 0 5% 3 27%

Chevrolet Dealership 0 0% 1 9% 0 0% 0 0% 1 27%

Office Building 0 0% 5 45% 1 9% 0 0% 6 37%

Total 0 0% 10 82% 2 18% 0 0% 12 100%

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Customer Comfort

Responses to DM event: How comfortable were you with the temperature between 4-7 PM?

Demand Management 1) Definitely too cold or 2) A bit chilly

3) Just right / OK

4) A bit warm

5) Definitely too hot Total

Business Count % Count % Count % Count % Count % ACE Hardware 0 0% 1 6% 0 0% 0 0% 1 6%

Fitness Center 0 0% 1 6% 0 0% 0 0% 1 6%

Fitness Center #2 0 0% 5 29% 1 6% 0 0% 6 35% Chevrolet Dealership 0 0% 4 24% 2 6% 0 0% 6 35% Office Building 0 0% 3 18% 0 0% 0 0% 3 18%

Total 0 0% 14 82% 3 18% 0 0% 17 100%

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Customer Comfort

Responses to DR1 event: How comfortable were you with the temperature between 4-7 PM?

Demand Response 10%

1) Definitely too cold or 2) A bit chilly 3) Just right / OK

4) A bit warm

5) Definitely too hot Total

Business Count % Count % Count % Count % Count % ACE Hardware 0 0% 2 15% 0 0% 0 0% 2 15%

Fitness Center 0 0% 1 8% 0 0% 0 0% 1 8%

Fitness Center #2 0 0% 2 15% 0 0% 0 0% 2 15% Chevrolet Dealership 0 0% 3 23% 1 8% 0 0% 4 31% Office Building 0 0% 3 23% 1 8% 0 0% 4 31%

Total 0 0% 11 85% 2 15% 0 0% 13 100%

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Customer Comfort

Responses to DR2 event: How comfortable were you with the temperature between 4-7 PM?

Demand Response 20%

1) Definitely too cold or 2) A bit chilly 3) Just right / OK

4) A bit warm

5) Definitely too hot Total

Business Count % Count % Count % Count % Count % ACE Hardware 0 0% 2 8% 1 4% 0 0% 3 13%

Fitness Center 0 0% 1 4% 0 0% 0 0% 1 4%

Fitness Center #2 0 0% 5 21% 1 4% 0 0% 6 25% Chevrolet Dealership 0 0% 5 21% 0 6% 0 0% 5 21% Office Building 0 0% 5 21% 4 17% 0 0% 9 38%

Total 0 0% 18 75% 3 25% 0 0% 24 100%

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Average Peak Demand and Savings by Site

Condition ACE

Hardware Fitness Center

Fitness Center #2

Chevrolet Dealership

Office Buildings Average

Baseline kW 42.21 103.33 77.84 38.43 14.43 55.25

Demand Management kW 31.68 98.98 72.74 31.79 31.68 49.47 Savings for Demand Management, kW 10.53 4.35 5.10 6.64 2.26 5.78

Percent Savings 25% 4% 7% 17% 16% 10%

Demand Response 10%, kW 28.04 84.84 73.21 25.44 17.14 45.73 Savings for Demand Response 10%, kW 14.17 18.49 4.63 13.00 0.00 12.57

Percent Savings 34% 18% 6% 34% 0% 23%

Demand Response 20%, kW 25.91 76.18 65.53 15.83 3.64 37.42 Savings for Demand Response 20%, kW 16.30 27.14 12.31 22.60 10.79 17.83

Percent Savings 39% 26% 16% 59% 75% 32%

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Additional Savings

kWh savings realized by utilizing REGEN’s scheduling functionality

Site Annual Energy Savings, kWh ACE Hardware 19,310

Fitness Center 5,961 Fitness Center #2 14,222 Chevrolet Dealership 9,608 Office Building 1,354

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REGEN’s OpenADR implementation provides full functionality to ensure reliable load curtailment

Flexible DRAS Configuration•Can support separate DRAS servers per DR program

Flexible DR Program Subscription•Specify desired load shed , baseline methodology per time period•Can even subscribe to multiple programs during the same time period

Robust Scheduling Features•Ability to precede event to ensure ready at start•Fully integrated with existing EnviroGrid Portal scheduler

Auditability•Records DR event participation•Tracks baseline vs. DR event performance

Alerts

•Ensures desired Demand Response curtailment achieved

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REGEN EnergySwarm Energy Management

Contact:James McPhail

james@REGENenergy.com909.809.7635

www.REGENenergy.com