Presentation delivered at MassRecycle's 4th Annual Green Office / Green Facility Conference, Bentley University, June 15, 2010. Get invited to next year’s conference by signing up to MassRecycle’s free email newsletter at www.massrecycle.org.

1. Top Energy Efficiency Products [6/15/2010] Green Office Conference [David McDougall] [Manager of Analytics]

2. Building Are Full of Energy Savings Opportunities “ Less than 5% of commercial buildings in the US are actually commissioned after construction.” - BCS Partners “ Closing our ‘national electric productivity gap’ could curtail up to 30% of our power consumption.” - Rocky Mountain Institute “ The average commercial building uses 26% more energy than needed.” - DOE / Energy Star It’s no surprise that commercial buildings are not as efficient as they could be! There is still ample room to improve efficiency in this space.

10. RCx Retro-Commissioning A systematic, documented process that identifies low-cost operational and maintenance improvements in existing buildings and brings the buildings up to the design intentions of its current usage. Why?: Because buildings rarely operate as designed.

13. Example: Air Handling Schedules Change in Schedule Annual savings = $21,000 CO 2 avoidance = 102 tonnes Savings Category No cost Action Recommended Enable auto-control. This unit was habitually overridden, but from continuous monitoring, each incidence was caught with minimal loss in energy savings. As a result of this measure new protocols were established for requesting off-hours usage to further limit this issue from re-occurring. Facility managers often don’t have the time to identify maintenance issues like equipment operating during off-hours. Increased costs are an undetected result. The AHU schedule ( green ) shows a regular daily schedule. SiteSMART found that actual operation (blue) was in constant over-ride.

14. Demand Response Overview Demand response is a cost-effective and reliable way to meet peak demand. The alternative is to build generation and transmission capacity that will be used for only a fraction of a year. 0% 25% 50% 75% 100% Winter Spring Summer Fall % of System Peak Demand 90% >10% of infrastructure costs are spent to meet peak demand that occurs less than 1% of the time Annual US Electricity Demand - % of Peak

15. Demand Response Overview Demand response is achieved when end-users reduce their demand for electricity from the grid in response to market signals. kWh’s 24 Hours $/kWh 24 Hours Reliability/Security – DR can be brought to market more quickly and precisely than comparable generation or T&D, giving grid operators resources needed to better manage reliability NOW while paying end-users to tap into existing resources . Price – DR can dramatically reduce pricing power of well-positioned generators and incentivizes end users to become active participants in energy markets – active participation keeps markets healthy and prices low . Efficiency – Demand response raises the specter of efficiency. Increased end user market participation puts energy back on the business planner’s map and, when properly deployed, can save end-users 20% or more on energy bills. Generation Capacity Demand kW 24 Hours With EnerNOC With EnerNOC With EnerNOC

18. David McDougall Manager of Analytics EnerNOC, Inc. 978-387-7626 [email_address] Thank You!