How Does the Asset Score Compare to EPA Portfolio Manager?
David Tan
started a topic
over 7 years ago
The Asset Score is intended to be complementary to Portfolio
Manager. An ENERGY STAR Portfolio Manager score enables the comparison of
buildings based on their energy consumption, as indicated by actual energy
bills. The Portfolio Manager score reflects the energy efficiency of a
building’s physical structure and its systems, as well as how efficiently it is
operated and maintained.
The Asset Score reflects the energy efficiency of a building
based solely on its design, construction, and energy systems. The Asset Score
normalizes for operational and occupancy factors, enabling users to identify
specific opportunities to invest in energy upgrades. Using both tools gives
users powerful information that can inform both energy upgrades and
improvements in building operations.
Sometimes we are asked if the EUI (kBtu/ft2) value provided by
the Asset Scoring Tool can be directly compared to the EUI number derived from
ENERGY STAR Portfolio Manager, however these EUI values are not directly
comparable. The EUI provided by the Asset Scoring Tool reflects modeled
energy use under standard operating conditions; the EUI derived from Portfolio
Manager is measured energy use under actual operating conditions.
Additional information is included in the Asset Score Program
Overview and Technical Protocol:
David Tan
The Asset Score is intended to be complementary to Portfolio Manager. An ENERGY STAR Portfolio Manager score enables the comparison of buildings based on their energy consumption, as indicated by actual energy bills. The Portfolio Manager score reflects the energy efficiency of a building’s physical structure and its systems, as well as how efficiently it is operated and maintained.
The Asset Score reflects the energy efficiency of a building based solely on its design, construction, and energy systems. The Asset Score normalizes for operational and occupancy factors, enabling users to identify specific opportunities to invest in energy upgrades. Using both tools gives users powerful information that can inform both energy upgrades and improvements in building operations.
Sometimes we are asked if the EUI (kBtu/ft2) value provided by the Asset Scoring Tool can be directly compared to the EUI number derived from ENERGY STAR Portfolio Manager, however these EUI values are not directly comparable. The EUI provided by the Asset Scoring Tool reflects modeled energy use under standard operating conditions; the EUI derived from Portfolio Manager is measured energy use under actual operating conditions.
Additional information is included in the Asset Score Program Overview and Technical Protocol:
https://buildingenergyscore.energy.gov/assets/energy_asset_score_technical_protocol.pdf