1. Transitioning to a Cleaner Energy Supply

2. Catalyzing climate solutions …in the lab …in the classroom…on our campus

4. Commitment | University-wide on-site renewable energy study Commitment | Explore renewable energy purchasing goal Acting on Climate

5. Emissions Footprint

6. Energy Supply and Renewable Purchasing

7. Produce, procure, and distribute energy throughout Cambridge and Allston. Steam plant with cogeneration, two interconnected chilled water plants, and electric microgrid Blackstone fuel input: 1.2 Million MMBTUs Electric consumed: 236 Million kWHs Cooling: 290,0000 MMBTUs Cambridge / Allston Energy Infrastructure

8. Blackstone Plant Configuration

9. 501c3 membership corporation, Massachusetts licensed electric retailer, buy power wholesale through ISO-New England market, utilize outsourced back office, external market consultants Model campus consumption through historical patterns and trends. Hedge next several years through layered purchasing (24x7 / 5x16) with multiple suppliers All energy purchases are physical internal bilateral agreements Harvard Dedicated Energy Limited (HDEL)

10. Hedged MegaWatt stack

11. Real Time Load versus Hedge

12. Consumption vs. Local Production Campus Consumption: 236,000,000 kWhs Blackstone turbine: ~ 16,000,000 Athletics PV: 514,000 Tata Hall PV: 95,000 Morgan PV: 53,000 Shad PV: 35,000 Gutman PV: 5,000

13. 2014 Renewable Energy Certificates (RECs) Renewable Energy Portfolio Standard (RPS) – statutory obligation for HDEL, must obtain percentage of electricity (currently 17.75%) from qualifying units. Percentage increases each year. RPS Class I – 9% (8% + 1% solar carve out) RPS Class II – 1.75% Waste Energy – 3.5% Alternative Energy Portfolio – 3.5% HDEL meets its obligation through series of contracts, largest is a REC plus Energy contract with Stetson II wind project.

14. ISO-NE Grid Winter Peak Mix – Natural Gas Constrained 24% 26% 6% 8% 10% 25% January2014 Average Annual Fuel Mix Getting Cleaner Source: ISO-New England 2015 Regional Electricity Outlook 15% 31% 8% 7% 22% 44% 34% 9% 5% 8% 1% 18% 20142000

15. Central Utility GHG Impacts Blackstone fuel switch - oil to natural gas: 16,400 Metric Tons of Carbon Dioxide Equivalent (MTCDE) Existing backpressure turbine: 5,600 MTCDE New combustion turbine: forecast 8,000 – 9,000 MTCDE Also, significant improvements on central systems (such as new boiler, blow down heat recovery, VFD chillers, winter free cooling, etc.) reduced another ~ 2,000 MTCDE Total GHG Reduction over 32,000 MTCDE

16. Achieving Deeper GHG Reduction University-wide renewable energy study to assess on- campus opportunities and strategy. Faculty advising on off-campus GHG emissions reduction opportunities. Post-2016 Goal: Task Force will be convened to set the next science-based GHG reduction goal. Track and analyze Scope 3 emissions.