855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 351
Extracted Content
Table 3.
| Points | Minimum rated capacity | Col3 |
|---|---|---|
| Points | IP units | SI units |
| 1 | A x 1.0 Watt/sq. ft. | A x 10.8 Watt/sq. m. |
| 2 | A x 2.0 Watt/sq. ft. | A x 21.6 Watt/sq. m. |
For a building taller than three stories, the minimum required rated capacity corresponds to:
o Approximately 20% of gross roof area covered by solar photovoltaics for one point,
OR
o Approximately 40% of gross roof area covered by solar photovoltaics for two points.
The 1-point threshold for minimum rated capacity is double the value of on-site renewable energy prescriptively required by ASHRAE 90.1-2022 without exceptions.
TIER 1 PERCENT OF ANNUAL SITE ENERGY METHOD FOR DEMONSTRATING COMPLIANCE This method is most appropriate for projects with three or fewer floors that have relatively low process loads. Projects must use the percent of annual site energy method when documenting more than two points for Tier 1 renewable energy.
Tier 2: New Off-site Renewable Electricity
Age of the renewable generator marks the key difference between Tier 2 and Tier 3 qualified electricity generation resources. Tier 2 requires new off-site renewable power either from generators contracted to be built and operational within two years of building occupancy or from generators with a commercial operations date (COD), no more than five years before the execution of the purchase contract.
OLDER CONTRACTS It is acceptable to use older long-term purchase contracts to comply with the COD requirement, provided that the contract shows the COD for the generators occurred less than five years before the contract was executed, and the allocated energy generation from the contract meets all Renewable criteria below. For example, a 20-year purchase contract for newly installed wind power executed 10 years ago allocated to the project in accordance with Renewable criteria below qualifies as Tier 2 renewable energy.
Tier 3: Off-site Renewable Energy
Tier 3 encompasses both renewable electricity that is Green-e® Energy -certified or equivalent, and renewable fuels certified to the Green-e® Renewable Fuels standard or equivalent.
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 341