1. Partners GHG Emissions Reduction Plan Beyond Fossil Fuel: Implementing Renewable Energy Systems Today

2. 60,000 EMPLOYEES 16.5M SQUARE FEET OF OWNED AND LEASED SPACE PARTNERS HOSPITALS 2 McLean Hospital Belmont MGH Danvers NSMC Salem NSMC Union PHS Assembly Row Spaulding Cambridge Spaulding Boston Charlestown Navy Yard Massachusetts General Hospital Simches Research Center Brigham and Women’s Hospital BWH Faulkner MGH West, Waltham Newton Wellesley Hospital BWH Patriot Place McLean Hospital, Middleborough Spaulding Rehabilitation Hospital Cape Cod Martha’s Vineyard Hospital Nantucket Cottage Hospital Cooley Dickinson Hospital Partners Data Center, Marlborough Partners Data Center, Needham 2

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4. Goals of the Plan 25% or Greater Energy Consumption Reduction Increase renewable/ sustainable energy sources Increase Use of Combined Heat and Power Reduce carbon-based energy input by 35% by 2020 4

5. 2010 Energy Master Plan The rapid rise of energy costs in the intensive health care sector requires a strategic perspective on managing our energy usage and costs in the future. Our objective in the Energy Master Plan is to address: The increasing demand and cost for energy The volatile nature of the current energy market Our concern for global warming and long-term sustainability of resource consumption The impact of energy consumption on the delivery of critical healthcare service s 5

6. Energy Conservation Measures – $61M investment in 230 ECM’s yields 28% energy reduction – 3.7 year payback (27% annual return) Cogeneration – 33 MW total at 4 hospital & 1 research lab location – 7.8 year payback (13% annual return) Renewables – 10 MW of Onsite PV potential PHS Goals 6

7. 2014 Energy Sources & Impacts 7 50% carbon based 33% r enewables 17% nuclear

8. Renewables Evaluated Tidal Energy Geothermal Biomass & Biofuel Wind Solar Hot Water Solar PV 8

9. Current Status Energy Conservation: 64% of 25% reduction goal (net 16% reduction). CHP: installing 10 MW now from 33 MW goal. PV: Issuing RFP for PV System at Assembly Row, continued evaluation of other sites with a preliminary potential of 10 MW for onsite generation. If these strategies are implemented by 2020, compared to 2008 base year, Partners will: - have reduced energy consumption by minimum of 28% - achieve minimum 50% renewable power (including hydro) - have reduced GHG emissions by minimum of 35% by 2020 9

10. Lessons Learned Motivated by the conviction that healthcare has an obligation to reduce energy consumption and its dependence on carbon-based fuels. Cannot rely on utilities to carry us to compliance with State mandated GHG reduction targets. Fed., State and utility incentives for renewables are not aligned nor all readily accessible for non-profits. Low and no-carbon CHP systems offer a good bridging technology as you increase your portfolio of renewables over time. Strategic renewable power procurement can make a significant difference in GHG emission. PV solar installations can assist on meeting revenue neutral GHG emissions reductions goals. 10

11. How are we doing… (emissions in metric tons) PartnersNew England AvgUS Avg SourceMMBTUCO 2 NO x S0 x CO 2 NO x S0 x CO 2 NO x S0 x Electricity Supply 1,158,739 101,971 81 67 128,349 115 107 194,722 340 965 BWH MATEP 790,798 50,516 48 1 89,209 85 2 89,209 85 2 Heating 1,371,752 43,007 39 0 46,319 42 0 46,319 42 0 Oil 40,315 3,000 3 4 3 4 3 4 Propane 17,056 1,117 2 - 2 - 2 - 3,378,659 199,612 173 73 267,994 247 114 334,367 472 971 CO 2 NO x S0 x vs New England-25.5%-29.9%-35.8% vs US-40.3%-63.3%-92.5% Source for emissions: http://www.epa.gov/cleanenergy/energy-resources/refs.html 11 Emissions used in NREL Paper "Source Energy and Emission Factors for Energy Use in Buildings" Deru and Torcellini*

12. PHS 2020 Goal (values in metric tons) 200820142020 SourceCO 2 NO x S0 x CO 2 NO x S0 x CO 2 NO x S0 x Electricity Supply 117,777 94 78 101,971 81 67 - - - Onsite Renewables $ $ $ BWH MATEP 58,346 55 1 50,516 48 1 43,759 42 1 New CHP 68,512 62 1 Heating 49,673 45 0 43,007 39 0 35,019 32 1 Oil 3,465 3 5 3,000 3 4 2,599 2 4 Propane 1,291 2 - 1,117 2 - 968 2 - 230,551 200 85 199,612 173 73 150,858 140 7 vs 2008 BaselineCO 2 NO x S0 x 2014-13.4% 2020-34.6%-30.2%-91.8% Source for emissions: http://www.epa.gov/cleanenergy/energy-resources/refs.html 12