making hennepin county a cool county
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Hennepin County
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What is Cool Counties?
A pledge to take action on Climate Change– Inventory greenhouse gas emissions from internal operations
– Implement policies and programs to reduce emissions
– Coordinate efforts with Minnesota State departments
– Support state legislation that is consistent with Hennepin County’s goals
– Urge action at the federal level to reduce emissions
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Why Join Cool Counties?
Minnesota has already codified strict GHG reductions
Enhances existing HC policies & programs for energy efficiency
Ensures measurement & documentation of HC’s emission reductions
Provides direction to county departments
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Minnesota Goals Compared to Cool Counties
GHG Emission Reduction Goals
0102030405060708090
100
2010 2015 2020 2025 2030 2035 2040 2045 2050Year
% G
oal
Cool CountyMN
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Compile an accurate emissions inventory
– Create emissions baseline and past 3-5 years accomplishments
– 86 owned facilities, 57 leased facilities, 676 vehicles
– Establish recordkeeping requirements and protocols; identify responsible parties
– Recommend reductions from County operations
– Review & Assess GHG monitoring and reporting protocols
– Identify federal, state & other grant opportunities
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• Based on self-reporting by individual departments in early 2008. Emissions not accounted for include: ex City libraries, corrections, tax forfeit property, or scope 3 emissions.
• 2007 Emissions:Direct 195,841
Indirect 70,475
2007
Libraries 4,971
Mobile sources 6,693*
Leased Buildings 8,226
Property Services 49,307
Energy Center 37,115
HERC 160,004*
Total (metric tons) 266,316
* = anthropogenic
Hennepin County CO2 emissions
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Renewable Energy Projects
Solar array at Public Works building
Wind Turbine at Public Works building
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Hennepin County Wind Turbine Project
1.5-2 MW wind turbine at PW Facility in Medina – Clean Renewable Energy Bond awarded by IRS
– Wind analysis completed by WindLogics
– Project has Planned Unit Development (PUD) approval by City
– RFP issued February 4, 2009
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Solar energy projects
Medina Public Works Building 80 kW– Panels mounted on beams above the roof– 528 modules 185 watts each– Completion in late February 2009
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Transportation
Increased percentage of bio-diesel
Shared E85 fueling station with City of Minneapolis
Adopted a new idling policy
Downsizing vehicles
8 hybrids, 186 flex fuel, 175 biodiesel
Experimenting with nitrogen filled tires
Converted 36 signals to LEDs, saving over 400,000 kWh / year
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HERC
• Constructed a steam line to the new Ball Park
• Signed a Joint Energy Efficiency Plan with Xcel, including turbine replacement with potential annual savings of 15,000,000 kWh
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Employee Programs
All printers default to double-sided copying
Telecommuting, 2011 employees in 2007
Subsidized transit passes to encourage use of public transportation
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Outreach & Community Involvement
• Launched a Cool County web site
• Host an annual Cool County Fair
• Produce a Green Notes e-newsletter
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Buildings
Government Center
1,501,950 sq. ft.
$2,970,000 in utilities/yr
3000 employees
20,000 tons of CO2 /yr
13 tons CO2 /1000 sq. ft.
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Recommissioning HCGC
Study done in 2007, implementation in progress
10 year or less payback
Cost to implement ECO’s is $650,000
Energy savings estimated at $200,000 annually
Overall payback is 3.25 years
CO2 reduction of 1,800 tons annually
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The ECO’s
13%37%
50%
LightingControlsHVAC
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Big Ticket Items
Lighting controls in courtrooms $20,000
Outside air adjustments $65,000
Reduce airflow when heating $20,000
Communication room transfer fans $25,000
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Current Plan
Temperature set points 69°F and 75°F
Eliminate personal appliances
Expedite recommissioning of all buildings – Central Library study underway– HCMC completed– Remaining buildings
Continue to update controls systems
Replace old HVAC systems
Lighting, lighting, lighting
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Lighting
Relamping from 32w to 25w tubes
Fixture upgrades
Occupancy sensors
County Government Initiative– One-stop lighting surveys– Increased rebates
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Lighting Savings
Relamping libraries
220,000 kWh reduced so far
15-25% electrical cost savings
60% discount with CGI rebate
1 year payback
Reduction of 200 tons CO2 annually
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New Libraries
Plymouth and Maple Grove Libraries
Geothermal heating and cooling
Daylighting
Automated lighting controls
Premium efficiency motors
Green roof
Permeable pavers
Native building materials