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Increasing Profitability Through Energy Services A Comprehensive Program To Deliver Energy and Sustainability Services. Increasing Profitability Through Energy Services. Module 6: Monitoring and Verification of Energy. Energy Services Delivery Model. Level III Audit / Retro- Commissioning.
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Increasing Profitability Through Energy Services A Comprehensive Program To Deliver Energy and Sustainability Services
Module 6: Monitoring and Verification of Energy
Energy Services Delivery Model Level III Audit / Retro- Commissioning Benchmark Energy Performance Propose and Implement Retrofits On-Site Energy Audits Monitor and Verify Savings
Why M&V? • Verify savings from energy conservation measures (ECMs)
Two Perspectives Building Owner Energy Service Provider • “Did I get what I paid for?” • “Did I get credit for what I provided?” • “Did my customer perceive value?”
Why M&V? • Verify savings from energy conservation measures (ECMs) • Ensure ongoing energy performance
Buildings Behave the Same Way! “Numerous case studies have been completed over the years with resulting O&M-related energy efficiency improvements on the order of 5–30% covering a wide range of building uses.” Federal Energy Management Program U.S. Department of Energy Source: Federal Energy Management Program, O&M First! – A Case Study on In-house Retrocommissioning at a DOE National Laboratory, June 2004
Energy Use Comparisons • Whole building • Subsystem M&V Process Baseline Period ECM Event Performance Period
Comparisons Challenges • Variables that impact baselines • Weather • Occupancy • Utility Rates
Energy Conservation Measures • Lighting retrofit • Reduce lighting density from 1.5 to 1.2 W/sf • 20% savings • Chiller replacement • Increase efficiency from 1.0 kW/ton to 0.7 kW/ton • 30% savings
Negative Savings!! Result
Positive Savings!! A Better Approach – Adjusted Baseline
Methods and Standards • International Performance Measurement and Verification Protocol (IPMVP) • Volume I - Concepts and Options for Determining Energy and Water Savings • Volume II - Concepts and Practices for Improved Indoor Environmental Quality • Volume III - Concepts and Options for Determining Energy Savings in New Construction
Methods and Standards • International Performance Measurement and Verification Protocol (IPMVP) • Volume I - Concepts and Options for Determining Energy and Water Savings • Volume II - Concepts and Practices for Improved Indoor Environmental Quality • Volume III - Concepts and Options for Determining Energy Savings in New Construction
Technologies for M&V • Manual • Power meters, data loggers, etc.
Technologies for M&V • Manual • Power meters, data loggers, etc. • BAS Trending • Logging control points through BAS for manual analysis
Technologies for M&V • Manual • Power meters, data loggers, etc. • BAS Trending • Logging control points through BAS for manual analysis • BAS Integration • Complex software algorithms check function of key subsystems
Technologies for M&V • Manual • Power meters, data loggers, etc. • BAS Trending • Logging control points through BAS for manual analysis • BMS Integration • Complex software algorithms check function of key subsystems • Stand Alone • Simple software applications analyze whole-building or sub-metered data
Weather Feed Pulse output Server Communication Gateway Stand-Alone M&V Application Meter
Analysis Method • Developed at DoE Pacific Northwest National Lab • Continuous analysis of whole building energy use patterns adjusted for: • Weather • Day of week • Time of day
Integrate with Energy Services Agreement • What’s an Energy Services Agreement? • It includes all the stuff you do today, plus… • Provides an Energy Star rating for the building • Establishes an Energy Usage Index for the building • Identifies controls issues • Identifies low cost ways to improve performance • Quantifies savings from ECMs implemented • Ensures ongoing energy performance It addresses the decision maker’s pain!
Silver Program Current PMA program Energy Star Benchmark Gold Program Utility bill analysis Control performance Energy reduction opportunities ESA Scopes of Work (Examples) Platinum Program • Monitor ongoing energy performance
Next Session – Marketing Energy Efficiency August 12th at 1:00 EST
Next Look for email in 1 day with link to webinar site: • Recorded version of this webinar • Info and articles for download • Register for upcoming sessions