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Hennepin County
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
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
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
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
• 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
Renewable Energy Projects
Solar array at Public Works building
Wind Turbine at Public Works building
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
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
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
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
Employee Programs
All printers default to double-sided copying
Telecommuting, 2011 employees in 2007
Subsidized transit passes to encourage use of public transportation
Outreach & Community Involvement
• Launched a Cool County web site
• Host an annual Cool County Fair
• Produce a Green Notes e-newsletter
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.
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
The ECO’s
13%37%
50%
LightingControlsHVAC
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
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
Lighting
Relamping from 32w to 25w tubes
Fixture upgrades
Occupancy sensors
County Government Initiative– One-stop lighting surveys– Increased rebates
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
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
