What is Benchmarking?
Energy performance benchmarking is simply a process for comparing one building’s
energy performance against thousands of similar buildings across the United States.
The benchmarking process compensates for several different types of variables such
- Building size
- Space type (office, data center, hotel, parking, etc.)
- Occupancy rate and hours of operation
- Plug loads
Once these variables have been accounted for (normalized) a comparison can be made
to similar buildings from across the country and a ranking of energy performance can
Why use ENERGY STAR Portfolio Manager?
ENERGY STAR® Portfolio Manager is an energy management tool created to help building
owners and property managers track and access energy and water consumption for a single
building or an entire portfolio of buildings. Portfolio Manager can help identify
under-performing buildings, allow informed decision-making about where to invest in
energy efficiency and verify the impact of those investments.
Portfolio Manager helps organize the benchmarking process and generates several
standardize reports including:
- An Energy Performance Rating – most buildings can be compared to a database
of similar buildings and rated on a scale of 1-100. A rating of 75 or better is
required to qualify for an
ENERGY STAR label.
- An Energy Use Index (EUI) – this measures how much energy a building uses
per square foot per year. Not all building types can receive an Energy Performance
Rating, but this industry standard measure can be calculated for all buildings and
compared to an EPA list of reference
energy performance targets.
- Estimated Carbon Footprint – Portfolio Manager can calculate your building’s
greenhouse gas emissions and also enables tracking of avoided emissions from any
Renewable Energy Certificates.
For San Francisco properties owners:
- Portfolio Manager can also generate the required San Francisco Annual Energy
Benchmark Summary as required by San Francisco City Ordinance 101105.