Yuma County Energy Audit:Report Summary

General Services DepartmentAugust 16, 2010

Project # 910-GS0006

Triple Bottom Line

• Americans saved enough energy in 2009 alone to avoid greenhouse gas emissions equivalent to those from 30 million cars — all while saving nearly $17 billion on their utility bills.

• 1979 - 28% of all our oil is imported• Today +60% is imported• Consumption over this period quintupled

Development Services

Misc. Equip.31%

Area Lights27%

Hot Water2%

Space Heat1%

Space Cool32%

Ext. Usage3%

Vent. Fans4%

• EEM #1 Lighting Retrofits– Replace older fluorescent lamps with energy efficient

longer lasting lamps – Add occupancy sensors where practical

• EEM #2 Adjust Temperature Controls– Change temperature set-points to industry standards

(no lower than 76⁰F for cooling, no higher than 74⁰F for heating)

– Program HVAC units to allow the Cooling & Heating systems to turn off/down during unoccupied period

Summary of Energy Conservation Measures (EEMs)

Summary of Energy Conservation Measures (EEMs)

• EEM #3 Exterior Lighting Retrofits– Replace HID/Metal Halide lamps with more energy

efficient fluorescent lamps• EEM #4 Window Replacement– Replace single pane windows with dual pane

• EEM #5 Demand Control Ventilation– Decrease/increase outside air into the building based

upon fresh air demand

Summary of Energy Conservation Measures (EEMs)

• EEM #6 PC Power Management/Server Consolidation– Turns computers off when not in use– Consolidation of servers or “Clouding” can create

savings• EEM # 7 Variable Frequency Drives On Motors– Allows motors to operate at reduced power levels,

matching the demand

Summary of Energy Conservation Measures (EEMs)

• EEM #8 Replace Aging AC units– Air Conditioning units older than 15 years should be

replaced with energy efficient units• EEM #9 Install More Energy Efficient Vending Mizers– Compressors and lights are activated by motion sensors

• EEM #10 Solar Power– Install Photovoltaic panels to reduce consumption

Cost/Benefit Summary Of All EEM’s And All buildings

Savings Summary All EEMsAnnual Electricity Cost savings $ 326,723

Cost SummaryMeasure Cost $ 1,881,951

Possible Utility Incentive $ 878,737

Net Measure Cost $ 1,003,215

Simple Payback (Years)

With Incentives 3.07

Annual Electricity Cost savings

$ 326,723

Measure Cost $ 1,881,951 Possible Utility Incentive

$ 878,737

Net Measure Cost $ 1,003,215

With Incentives 3.07

Cost Summary

Simple Payback (Years)

All EEMsSavings Summary

Summary Of Energy Reduction PlanNon Library Buildings

Savings SummaryTotal For All Non Library

Buildings

Total Baseline Electric Consumption (kWh) 11,133,241

Total kWh/sf/yr 12.36 Projected Annual Electricity Savings (kWh) 3,062,107Projected Total kWh/sf/yr 8.96 % Energy Consumption Reduction 28% GHG Emissions Savings (Metric tons) 2,199

Summary Of Energy Reduction PlanLibrary Buildings

Savings SummaryTotal For All

Library Buildings

Total Baseline Electric Consumption (kWh) 2,740,600

Total kWh/sf/yr 16.25 Projected Annual Electricity Savings (kWh) 539,316Projected Total kWh/sf/yr 13.05 % Energy Consumption Reduction 20% GHG Emissions Savings (Metric tons) 387

Combined Greenhouse Gas Emission Reduction

These EEMs will result in a savings of 2,586 Tons of CO₂ for Yuma County, equal to:

• 495 cars off the road or• 314 home energy use or• 6,015 barrels of oil or• 290,935 gals of gasoline

Source: EPA website

Summary of Energy Star Ratings

Building # Building Name

Energy Star

Rating

Energy Star

Label

168Historic Courthouse & Justice Center 86 YES

2200 Health Dept. 82 YES

2351Development Services 77 YES

198 Administration 62 NO

405 Adult Probation 61 NO

Questions??