855773667-LEED-v5-O-M-Reference-Guide-Launch-Edition-1 - Page 145

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PATH 2. PERFORMANCE RELATIVE TO HISTORICAL BASELINE (1–3 POINTS)

Calculate the historical baseline target derived using the site energy data for each building energy source from a 12-month reporting period with similar occupancy occurring within eight years before the end of the 12-month reporting period, and the project GHG emissions factor for each energy source during the historical reference period.

Historical data may be normalized against the reporting period for weather or operational variables such as occupancy or production throughput.

If the project generated on-site renewable energy or procured off-site renewable energy during the historical reporting period, treat this identically to nonrenewable energy for the purposes of calculating the GHG emissions target.

Table 3. Points for percentage reduction below GHG emissions target

Points	% reduction
1	15%
2	30%
3	60%

For all options

District Energy

• Projects with district energy must comply with the requirements of this credit at the district facility or see additional guidance for interpretation of credit requirements.

REQUIREMENTS EXPLAINED

Each option of this credit places a different lens on decarbonization associated with the project’s energy use. Option 1. Greenhouse Gas Emissions for On-Site Combustion prioritizes reduction or elimination of on-site combustion, enabling the project to reap the benefits of rapidly decarbonizing electric grids. Option 2. Renewable Energy incentivizes further decarbonization of electricity through renewable supply or procurement. Option 3. Total Greenhouse Gas Emissions from Building Energy Use rewards an overall reduction in greenhouse gas emissions achieved collectively through energy efficiency, electrification, and renewable energy. Projects can combine all options for up to 12 points.

U.S. Green Building Council LEED v5 Reference Guide for Operations and Maintenance, April 2025 Launch Edition 135