855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 382

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Interval-recording and External Signal

For all options, the design must include electric meters with interval recording capabilities. Gridinteractive equipment installed as part of the project’s scope must be capable of receiving an external signal directly or indirectly to indicate when load management should be enabled.

Peak Load Determination — Option 1 and Option 3, Path 2

For options that reference a reduction in peak thermal or peak electricity demand, use the modeled coincident peak demand for the proposed design for projects documented using the Energy Cost Budget Method or Appendix G Performance Rating Method in EAp2: Minimum Energy Efficiency . For projects documented using the prescriptive method, generate estimates of peak thermal or peak electricity demand using the approach outlined in EAp1: Operational Carbon Projection and Decarbonization Plan .

The peak demand contribution from electric vehicle supply equipment (EVSE) for recharging vehicles used for off-site transportation may be excluded from the peak load determination if separate metering is provided for the EVSE.

Option 1. Energy Storage

Projects are awarded points for installing on-site electric and/or thermal storage that meets capacity requirements, relative to peak demand, per Table 1.

Electricity storage refers to large batteries that store electricity until it is needed.

Thermal energy storage (TES) stores heating or cooling energy for later reuse. Examples include ice storage, chilled water storage, and hot water storage.

Electrical peak demand differs from thermal peak demand, especially in an all-electric building. In an all-electric building, the peak demand includes the contribution of thermal demand and other loads such as lighting, plug and process loads, pumps, and fans. For an all-electric building, the Table 1 thermal storage capacity thresholds that compare to peak coincident thermal demand are expected to achieve similar electricity demand reductions to the Table 1 electric storage capacity thresholds that compare to peak electric demand.

Using the peak electric or peak thermal demand determined consistent with the method described above, determine the total capacity required to meet thresholds for the type of storage.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 372