Managing Efficiency. On- Going Operation: Tracking energy usage Can t improve what you don t track Maintenance planning

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1 Managing Efficiency Investigation, Design, and Construction Phases: Energy Audits Required in some state and federal programs Incentives available in many places Molds the scope of work to increase overall project efficiency Commissioning Assuring design and construction are leading to efficient and effective operation Owner s technical representative to verify proper operation On- Going Operation: Tracking energy usage Can t improve what you don t track Maintenance planning

2 Freddie Mac Green Up Level 1 Energy audit Walkthrough style Develop Low/No Cost EWEMs Provide estimated savings Identify larger projects for engineering study Required Savings 15% of owner- paid utilities (energy or water) Benefits Basis point reduction Ability to underwrite up to 50% of owner paid utility savings

3 Freddie Mac Green Up PLUS Level 2 Energy audit Calculated energy savings Low/No Cost EWEMs Inclusion of more capital intensive EWEMs Required Savings 15% of owner- paid utilities (energy or water) Benefits Basis point reduction Ability to underwrite up to 75% of owner paid utility savings

4 Fannie Mae Green Rewards Level 2 Energy audit High Performance Building Module report Calculated energy savings Low/No Cost EWEMs Inclusion of more capital intensive EWEMs Required Savings 20% of owner- paid utilities (energy or water) Benefits Basis point reduction Ability to underwrite up to 75% of owner paid utility savings and 25% of tenant projected savings

5 HUD Multifamily Accelerated Processing Depends on EnergyStar Score Can be integrated with CNA, but isn t required Calculated energy savings Low/No Cost EWEMs Required Savings 20% of owner- paid utilities (energy or water) Benefits Basis point reduction Ability to underwrite up to 75% of owner paid utility savings Program Work Classification Minimum Score New Construction & Gut Rehab ENERGY STAR score on SEDI must be 60 or greater (exceptions for gut rehab of historic buildings 220, 221,231,241(a) Substantial Rehab < Gut Rehab If ESTAR score on SEP <60, ASHRAE Level II is required and work must include cost beneficial conservation 223, 241(a) Repairs, replacements, alterations, or no repairs measures If ESTAR score SEP is <60, Level II required and CNA must identify and evaluate conservation measures, but implementation is not required

6 Commissioning What, Why, and How What: Verification that systems are installed and operating as designed and intended Owner s Agent that helps with the technical aspects of getting the desired finished product Commissioning agent looks at the operations and efficiency as a whole: Design adequacy Energy efficiency Maintenance requirements

7 Commissioning What, Why, and How Why: Typically not included in design/construction team s scope Required by several programs outlined in QAPs Maximizes your investment in high efficiency equipment Participating in energy efficiency design programs is a good but it s imperative to make sure the buildings are operating as designed, particularly if savings are underwritten Net cost of commissioning a new buildings is often zero or even negative * * The Cost- Effectiveness of Commissioning New and Existing Commercial Buildings: Lessons from 224 Buildings, Mills et. Al, 2005

8 Commissioning What, Why, and How How: Engage a qualified commissioning agent early Certifications include: Building Commissioning Association Certified Commissioning Professional (CCP) AEE Certified Building Commissioning Professional (CPBP) or Existing Building Commissioning Professional (EPBP) Integrate commissioning activities with the design/construction team Establish clear communication protocols

9 Commissioning Typical Issues Discovered Design Phase Uncoordinated mechanical system controls Sequences of operation not fully spelled out Heating/Cooling system efficiency opportunities Incomplete building enclosure details Construction Phase Improperly installed equipment Improperly programmed controls Building envelope issues Warranty Phase Systems operating out of specification Systems not operating optimally Unplanned maintenance requirements

10 Commissioning Sample Findings

11 Commissioning Sample Findings

12 Commissioning Sample Findings

13 Commissioning Sample Findings