SUSTAINABLE BUILDINGS

Asset Classes

Focus Area

Energy and Carbon

Topic

Baseline Practices

Question #

E1.0a — Energy and Carbon Assessment

Question

Has a Walkthrough Energy and Carbon Assessment been completed in the past five years?

Applicability

All asset classes
Owner/landlord occupied building
Tenant occupied building – all systems managed by the owner/landlord

Answer & Scoring

  • Yes – this is a baseline requirement
  • Not Applicable: Tenant occupied building: Some or no systems managed by the owner/landlord

Requirements

The Energy and Carbon Assessment Report must cover:

  1. Building and system Description and review, interviews with building O&M staff
    • If the site visit was completed remotely, describe steps taken to become familiar with the building’s construction, equipment, operation and maintenance to demonstrate that the assessment accurately reflects on-site conditions
  2. Energy utility history (at least 12 months of continuous data, typically the previous 24-36 months of data) for each energy source
  3. Greenhouse Gas inventory or Carbon emission history (at least 12 months of continuous data, typically the previous 24-36 months of data) for each carbon source
  4. Baseline energy consumption and carbon emissions, with benchmarking
  5. Low- and no-cost energy conservation and/or carbon reduction measures, with high level costing, simple payback and anticipated savings

The assessment methodology should at a minimum align with an ASHRAE Level I Audit. While the ASHRAE Level I Audit does not cover carbon, it can be used as a general guideline for the carbon assessment component.

The assessment provided is not required to be completed by a professional engineer.

Refer to ENERGY STAR for carbon emission calculations and creating a GHG inventory. If other carbon emission factors are used, explain reasoning and factors applied

For newly constructed high performance and net-zero carbon buildings, an Energy and Carbon Assessment Report is still required. Should there be no low- and no-cost energy conservation and/or carbon reduction measures identified, provide justification beyond the systems being new. Note that while a newly constructed building may be designed to be high performance or net-zero carbon, it does not necessarily indicate that it performs as such or that no further improvements can be made.

Documentation

  • Walkthrough Energy and Carbon Assessment Report

OR

OR

  • Documentation demonstrating that no systems are under the building owner/landlord’s control (e.g. lease agreement)

Suggested Lead

In-house: Facility Maintenance, Potential in-house energy/sustainable operations staff (e.g. JLL) 
Third-party: Energy/engineering consultants

Value

  • Understand a building’s environmental impact through energy use and carbon emissions data analysis
  • Perform an entry-level energy and carbon assessment to define a building’s baseline energy consumption and carbon footprint through utility analysis
  • Identify ways to reduce energy use and carbon emissions through low-cost energy conservation measures (ECMs) and carbon conservation measures (CCMs)
  • This assessment can be performed in-house using the BOMA BEST Template provided in the How-to Manual or by a qualified third-party
  • The question is applicable to spaces both inside and outside of the building.
  • Engage a qualified third-party professional to provide more detailed recommendations to improve building performance, save on operational costs, and reduce a building’s overall environmental impacts

RELATED Questions:

Description

Assessments allow building management to identify opportunities for operational optimization and capital upgrades, focusing on the highest-impact systems and areas. Align methodology with ASHRAE Level I Audit or equivalent.

Buildings with an ENERGY STAR score can obtain GHG information from ENERGY STAR.

To generate recommendations for no- and low-cost energy conservation measures (ECMs) and carbon reduction measures (CRMs) as well as more capital-intensive upgrades, assessments should include estimates of potential savings for proposed measures and consider implementation costs. Measures selected for implementation can then be added to plans and budgets.

References

Adapted BB3 Question

Best Practice 2 — Has an ASHRAE Level 1 Energy Assessment been conducted in the past five years?