M&V Option B in Energy Efficiency Retrofit Projects
M&V Option B, also known as the Isolation Retrofit Approach, is one of the approaches that involves analyzing the total energy consumption of a facility at equipment level to determine the savings achieved by adopting some energy conservation measures. Option B is particularly suited for projects energy performance of equipment is required and collecting data at equipment level is feasible. Key features:
Baseline Development
This involves analyzing historical energy consumption data before the retrofit to develop a baseline that accurately represents the consumption of all parameters prior to the retrofit. Additionally, it includes assessing the independent variables that can affect the facility's energy consumption or demand
Data Collection
Main source of data is direct measurement of the energy consumption or performance metrics of the energy systems or equipment affected by the energy-saving measures. Different data sources can be submeters, data loggers, and BMS
Independent Variables
Independent variables include factors that influence facility energy consumption or demand. These variables will be systematically incorporated to determine the periodic adjustment of the baseline during the reporting period
Routine Adjustments
Mathematical models (e.g., regression) enable baseline adjustments based on relevant independent variables. Baseline adjustment is required for energy savings calculation
Non-Routine Adjustments
Refer to adjustments made to the baseline energy consumption to account for significant, unexpected changes that affect energy usage. Unlike routine adjustments, which address predictable and recurring variations, non-routine adjustments are necessary for changes that are irregular and not part of normal operations
Energy Savings Calculation
Baseline Energy Consumption ± Routine Adj. ± Non−Rotuine Adj. − Reporting Energy Consumtpion "Baseline Energy Consumption " ("±" )" Routine Adj. " ("±" )" Non-Rotuine Adj. " ("-" )" Reporting Energy Consumtpion "