Hennepin County Property Services Energy Conservation Efforts MEPC Presentation September 2010
HENNEPIN COUNTY PROPERTY SERVICES DEPARTMENT MONTHLY ENERGY COSTS $1,200,000 $1,000,000 Cold 2009 October $800,000 $600,000 2008 2009 2010 $400,000 Mild 2010 Spring Erratic 2010 May Mild 2009 Summer Warm 2009 November $200,000 $0 January February March April May June July August September October November December
HENNEPIN COUNTY PROPERTY SERVICES DEPARTMENT MONTHLY ENERGY USE 70,000 60,000 50,000 MMBtu's 40,000 30,000 Cold 2009 October 2008 2009 2010 Mild 2010 Spring Mild 2009 Summer 20,000 Erratic 2010 May Warm 2009 November 10,000 0 January February March April May June July August September October November December
HENNEPIN COUNTY PROPERTY SERVICES DEPARTMENT Percent Change in Energy Use from 2008 to 2009 per Building 30 20 Percent Changed 10 0-10 -20-30 -40
HENNEPIN COUNTY PROPERTY SERVICES DEPARTMENT Percent Change in Cost from 2008-2009 per Building 20 10 Percent Changed 0-10 -20-30
500,000 HENNEPIN COUNTY PROPERTY SERVICES DEPARTMENT Yearly Energy use in MMBtu's 453,017 424,134 400,000 MMBTUs 300,000 200,000 2008 2009 100,000 0 2008 2009 Year
Energy Savings of 28,800 MMBtu s
What is a MMBTU? BTU stands for British Thermal Units MM indicates 1 million 1 BTU is the amount of energy needed to raise 1 lb of water 1 degree Fahrenheit A way to combine energy sources into one equivalent unit of measurement
HENNEPIN COUNTY PROPERTY SERVICES DEPARTMENT - YEARLY ENERGY COSTS $10,000,000 $9,314,159 $8,376,566 $8,000,000 $6,000,000 Dollars 2008 2009 $4,000,000 $2,000,000 $0 2008 Year 2009
Cost Savings of $960,000
Hennergy Awards The Hennepin County Property Services Department - Facilities Management Division held their Third Annual Hennergy Awards Program Wednesday, May 26, 2010 The program provides recognition for excellence in managing energy in Hennepin County buildings under Property Services This year s winners were recognized for the reduction in energy consumption in 2009 as compared to that in 2008
Hennergy Awards CATEGORY WINNER Small Building Electrical Large Building Electrical Small Building Natural Gas Large Building Natural Gas Steam & Chilled Water New awards: Best Energy Performance by a Small Library Best 3 Year Energy Performance 2007-2009 Best 3 Year Energy Performance 2007-2009 Brooklyn Park Transfer Station Brookdale Regional Center Environmental Services Building Ridgedale Regional Center Hennepin County Government Center Sumner Library Hennepin County Government Center Southdale Regional Center
How was this Accomplished? URN IT OFF! URN IT DOWN! UNE IT UP! RACK IT!
Sumner Library Best Energy Performance by a Small Library 30% Reduction in energy use 23% Energy cost savings - $8,910 Reduced $4.12/sf to $2.89/sf Determined an energy hog CEE energy study Temperature setpoints Reprogrammed air handling units Dedicated building engineer
Executive Energy Profile 350 300 MMBtu s Use 250 200 150 2008 2009 2010 100 50 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month
Hennepin County Government Center Best 3 Year Energy Performance 2007-2009 Saved over 1,000,000 kwh last year More than 1800 Chicago used last year Reduction of 6.7% in electricity Recommissioning efforts New variable frequency drives Fine tuning equipment schedules
Executive Energy Profile 14K 12K MMBtu s Use 10K 8K 6K 2008 2009 2010 4K 2K 0K Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month
Brookdale Regional Center Large Building Electrical Overall energy reduction of 19% Cost savings of 19% - $51,286 Corrected sensor issues Reduced equipment run times Retrofitted with energy efficient lamps
Executive Energy Profile 2400 2000 MMBtu s Use 1600 1200 800 2008 2009 2010 400 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month
Property Services Department Initiatives Cool County Initiative overall county goal to reduce carbon emissions by 80% by the year 2050. Building Recommissioning Building Lighting Retrofits Building Automation System Upgrades
New Libraries Exceed existing energy code by 30% by using: Geothermal heating and cooling Daylighting Automated lighting controls Premium efficiency motors Demand ventilation
Geothermal Test Sites New Construction Plymouth Library In ground vertical wells Maple Grove Library Closed loop in pond Renovation Nokomis Library In ground vertical wells
Green Roofs Central Library 19,300 sq. ft. Plymouth Library 11,220 sq. ft. Maple Grove Library - ~40,000 sq. ft.
Daytime Janitorial Estimated to save $100,000 annually in energy costs Over 2,000,000 kwh in electrical consumption Almost 1,700 tons of carbon emissions Equal to 325 cars or 150 homes
VendingMiser Bulk Buy Statewide campaign by MN CERTs. Installed 40 Vending Misers across the county Initial cost savings of $1,200 with bulk buy Estimated energy savings of $1,500 annually Payback of under 4 years
EECBG Energy Efficiency and Conservation Block Grant Central Library Recommissioning HERC Lighting Retrofits HCMC Recommissioning Property Services Lighting Retrofits Transportation Lighting Retrofits
Outcomes Total grant amount is $2,640,600 Estimated annual savings is $1,900,000 Estimated savings of $260,000 annually in Property Services operating budget
Cool County Impacts Goal of EECBG is to reduce GHG emissions by 10,000 tons of CO 2 annually. This will reduce Hennepin County s overall GHG emissions by 3%.
Facility Cost Share Grant 50/50 ARRA Grant up to $150,000 $350,000 project with $50,000 in rebates ARRA funding through OES HSB Lighting retrofit and controls upgrade Retrofit 3-lamp to 2-lamp fixture Replace outdated control panels Install daylighting and occupancy sensors
Fixture Retrofit Retrofit is all done within original housing. Decreases glare and increases light displacement (reducing cave effect)
Questions? Leah Hiniker, Energy Manager leah.hiniker@co.hennepin.mn.us 612.543.1219