Worcester Art Museum: Green Technology Evaluation Travis Collins ECE Christopher Gowell ME Aaron Hall-Stinson ME Advisors: Professor William Baller Professor Stephen Bitar

Global Impact Loss of Natural Resources Loss of Natural Resources Reliance on Oil Reliance on Oil Commercial Office Buildings Consume 18% of National Energy Commercial Office Buildings Consume 18% of National Energy

Worcester Art Museum

Higgins Education Wing Built in 1970 Built in 1970 Office space, studios, classrooms, and storage Office space, studios, classrooms, and storage Facilities Master Plan includes options to construct a third floor over the existing wing Facilities Master Plan includes options to construct a third floor over the existing wing

Objectives 1.Perform an energy audit and estimate future office energy usage 2.Determine which green technologies will be most beneficial to the museum 3.Examine funding sources 4.Provide detailed recommendations

Energy Audit Gathered energy bills for past 3 years Gathered energy bills for past 3 years Office by office walkthrough Office by office walkthrough Evaluated electrical usage of each device with Fluke Meter Evaluated electrical usage of each device with Fluke Meter Evaluate Usage based on device operating hours and operational modes Evaluate Usage based on device operating hours and operational modes

Power Evaluation Found heating and cooling to be biggest consumer Found heating and cooling to be biggest consumer Followed by lighting Followed by lighting – Due to large amounts of incandescent bulbs Found museum employees to be conscious of energy Found museum employees to be conscious of energy Lighting system reevaluation needed due to specific artistic needs Lighting system reevaluation needed due to specific artistic needs

WAM Energy Usage (FY09) 380,000 kWh used annually in the Higgins Wing kWh

Going Going Green Possible Options Photovoltaic Array (Electric Solar Panels) Photovoltaic Array (Electric Solar Panels) Green Roof (Vegetative Roof) Green Roof (Vegetative Roof) Wind Turbine Wind Turbine

Ruled Out Wind –R–R–R–Required Footprint –Z–Z–Z–Zoning Green Roof –T–T–T–The Good Triple Life of Existing Roof Increase Drainage Efficiency –T–T–T–The Bad Substantial Roof Weight Requirements Very Long Payback Period –M–M–M–Minor Thermal Insulation Gains –L–L–L–Limited Funding Solutions Comparatively

Photovoltaic Overview Selection Criteria 1.Direct Energy Production 2.Funding Solutions 3.Best Payback Period 4.Best Applicable Advantages

Worcester State watt panels on ballasted docking station watt panels on ballasted docking station Produces 140,000kWh annually Produces 140,000kWh annually 33,000 sq. ft of roof space 33,000 sq. ft of roof space Evergreen ES-195 series panels Evergreen ES-195 series panels Cost $825,000 Cost $825,000 Funded $570,00 by MTC Funded $570,00 by MTC $255,000 from CREB (clean renewable energy bonds) $255,000 from CREB (clean renewable energy bonds)

Mass MoCA Solar 51.6 kW electric PV array 51.6 kW electric PV array ~48,000 kWh generated annually ~48,000 kWh generated annually Evergreen Solar (Massachusetts based) and SCHOTT Solar panels Evergreen Solar (Massachusetts based) and SCHOTT Solar panels

Mass MoCA Funding Project Cost: $ 709,500 Project Cost: $ 709,500 – Solar Array: $ 391,560 $ 391,560 – Educational Exhibits: $ 128,500 $ 128,500 – Other Upgrades: $ 189,440 $ 189,440

Museum Projection Option 1 Installation of a ballasted photovoltaic system Installation of a ballasted photovoltaic system 340 Panels Installed 340 Panels Installed 57kW Power Output 57kW Power Output $427,000 Initial Install $427,000 Initial Install 71,000kWh Produced Annually 71,000kWh Produced Annually – Power 8 2-story homes or take 14 cars off the road annually – Save 44 tons of CO 2 $11,000 Annual Savings $11,000 Annual Savings – (2 Free Months)

Future Possibilities Option Total Panels Installed 520 Total Panels Installed 87kW Total Output 87kW Total Output Total Cost $ 650,000 (additional $ 223,000) Total Cost $ 650,000 (additional $ 223,000) 109,000kWh Produced Annually 109,000kWh Produced Annually Power 11 homes or take 23 cars off the road Power 11 homes or take 23 cars off the road Save 70 tons of CO 2 Save 70 tons of CO 2 $16,000 Annual Savings $16,000 Annual Savings

Conceptual Expansion

Projected Gains Current Structure Current Structure – 20% Electrical energy supplied After Addition After Addition – 25% Electrical energy supplied of projected usage

Commonwealth Solar Rebates

Economic Impact Locally manufactured components Locally manufactured components Evergreen Solar and Solectria Renewables Evergreen Solar and Solectria Renewables Local jobs Local jobs

Recommendations Apply to MTC for Green Building Initiatives Program Apply to MTC for Green Building Initiatives Program Install outlined PV array on Higgins roof Install outlined PV array on Higgins roof With extra MTC grant money execute a lighting survey and update as recommended With extra MTC grant money execute a lighting survey and update as recommended

Fran Pedone, WAM Honee Hess, WAM Alfredo DiMauro, WPI Facilities Michael Balch, Garland Co. Robert Daniels, WSC Facilities Sandy Olson, WSC Facilities Apex Roofing Co. Nexamp Co. Prof. William Baller, WPI Prof. Stephen Bitar, WPI Prof. Dominic Golding, WPI Prof. Robert Krueger, WPI Questions? Special Thanks to: