Calibrated Simulation. Savings are determined through simulation of the energy use of the whole Facility, or of a sub-Facility. Simulation routines are demonstrated to adequately model actual energy performance measured in the Facility. This Option usually requires considerable skill in calibrated simulation. If applicable, the predetermined schedule for data collection, evaluation, and reporting is defined in Exhibit A, Article 3-Performance Assurance Services Program.
Calibrated Simulation. (Calibrated Building Modeling) Savings are determined through simulation of the energy use of components or the whole facility. Simulation routines must be demonstrated to adequately model actual energy performance measured in the facility. This option usually requires considerable skill in calibrated simulation. Energy use simulation, calibrated with hourly or monthly utility billing data and/or end-use metering. Multifaceted energy management program affecting many systems in a building but where no base year data are available. Post-retrofit period energy use is measured by the gas and electric utility meters. Base year energy use is determined by simulation using a model calibrated by the post-retrofit period utility data. Table C.2 shows a summary of the proposed M&V plans for the project. Detailed description of the plan for each ECM subsequently follows. The results of the M&V services will be reported to NMSU on an annual basis. All specific protocols in the plans must be explained to and accepted by NMSU before construction on the project can begin. If NMSU does not agree with the protocols used to verify the savings, there is potential for significant disagreement once verification efforts begin. This page is intentionally left blank. Table C.2. Measurement and Verification Summary Matrix ECM Description IPMVP Option Baseline M&V Requirements Post Retrofit M&V Requirements Measurement and Metering Stipulated Variables Performance Period M&V Requirements ECM 1: Interior Lighting A Measurement of input power of select existing light fixtures. Measurement of run hours of select existing light fixtures. Measurement of input power of select new light fixtures. Short-term metering of power consumption on select light fixtures. Short-term metering of select fixtures run hours. Number of selected fixtures must be statistically significant. Baseline and post-retrofit fixture power draw. Baseline and post-retrofit fixture run hours. Annual inspection on a percentage of retrofitted light fixtures. Included in ECM 1: Interior Lighting Controls A Measurement of run hours of select light fixtures without controls. Measurement of run hours of select light fixtures with controls. Short-term metering of fixtures run hours with and without controls. Number of selected fixtures must be statistically significant. Baseline fixture power draws from ECM 1. Baseline and post-retrofit fixture run hours. Annual inspection on a percentage of retrofitted light controls. Inc...
Calibrated Simulation. Estimate facility energy use based on computer simulation with detailed comparisons made to calibration data. • Equation: Savings = [Baseline energy/water/wastewater from the calibrated model without ECMs] – [Reporting period energy/water from the calibrated model with ECMs] • If actual energy data are available for either baseline or reporting period, Savings = [Baseline energy/water/wastewater from the calibrated model without ECMs] – [Actual calibration-period energy/water (with ECMs)] ± [Calibration error in the corresponding calibration reading] • Option D is costly due to challenges of accurate computer modeling and calibration. • Common Applications: Where energy data of either baseline or reporting period, but not both, are unavailable or unreliable, such as a new or significantly remodeled or repurposed facility. For purposes of calculations based on measured commodity unit savings the commodity escalation rates set forth in Schedule C (Savings Guarantee) (which may not exceed those set forth in Exhibit 8 (Form of Savings Estimate)) shall be used to establish the energy price for each Savings Year that is multiplied by actual commodity unit savings. Contractor is not responsible for and does not receive benefit for savings based on actual commodity prices. SUMMARY OF IVMVP OPTIONS IPMVP Option How Savings Calculated Typical Applications
Calibrated Simulation. Option D involves the use of computer simulation software to predict energy use. Such simulation model must be “calibrated” so that it predicts an energy use and demand pattern that reasonably matches actual utility consumption and demand data from either the base-year or a post-retrofit year. Option D may be used to assess the performance of all Improvement Measures in a facility, akin to Option C. However, different from Option C, multiple runs of the simulation tool in Option D allow estimates of the Measured Project Benefits attributable to each Improvement Measure within a multiple Improvement Measure project. Option D may also be used to assess just the performance of individual systems within a facility, akin to Options A and B. In this case, the system’s energy use must be isolated from that of the rest of the facility by appropriate meters. Measured Project Benefits from the following Improvement Measures will be calculated using Option D: None Changes in Use or Condition; Adjustment to Baseline and/or Annual Project Benefits Customer agrees to notify JCI, within fourteen (14) days, of (i) any actual or intended change, whether before or during the Guarantee Term, in the use of any facility, equipment, or Improvement Measure to which this Article applies; (ii) any proposed or actual expansions or additions to the premises or any building or facility at the premises; (iii) a change to utility services to all or any portion of the premises; or (iv) any other change or condition arising before or during the Guarantee Term that reasonably could be expected to change the amount of Project Benefits realized under this Agreement. Such a change, expansion, addition, or condition would include, but is not limited to: (a) changes in the primary use of any facility, Improvement Measure, or portion of the premises; (b) changes to the hours of operation of any facility, Improvement Measure, or portion of the premises; (c) changes or modifications to the Improvement Measures or any related equipment; (d) changes to the M&V Services provided under this Agreement; (e) failure of any portion of the premises to meet building codes; (f) changes in utility suppliers, utility rates, method of utility billing, or method of utility purchasing; (g) insufficient or improper maintenance or unsound usage of the Improvement Measures or any related equipment at any facility or portion of the premises (other than by JCI); (h) changes to the Improvement Measures or any related ...
