855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 230

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Peak Coincident Thermal Demand

Take into consideration all thermal energy generated within the project boundary or by systems exclusively serving the project space. If the project does not generate thermal energy, documentation must be shown at the building-level.

Energy Modeling for EAp2: Minimum Energy Efficiency For projects documented using the ECB Method or Appendix G PRM in EAp2: Minimum Energy Efficiency, use the modeled coincident peak demand for the proposed design. For projects that have shared HVAC or SWH systems, use submeters in the energy model or post-processing to exclude the energy from these shared systems in the determination of peak electric demand or peak coincident thermal demand.

Prescriptive method for EAp2: Minimum Energy Efficiency For projects documented using the prescriptive method, generate estimates of peak thermal or peak electric demand (e.g., estimates from monitored data for similar projects, simplified energy models, or energy model results from similar projects).

Exception for EVSE The peak electric demand contribution from EVSE for recharging vehicles used for off-site transportation may be excluded.

Example 1 . Limited Scope Project — TES The project installs electric heat pump storage water heaters with 20 kWh of excess storage capacity beyond the minimum storage needed to meet the project’s 20 kW peak SWH demand (1 kWh/kW of thermal storage capacity). The project receives all heating and cooling from the building’s shared systems, so these are not included in the peak coincident thermal demand determination. This achieves 1 point.

Example 2 . Substantial Scope Project — TES A large project generates its own heating, cooling, and SWH. Peak space heating loads are 1,000,000 Btu/h (290 kW), and coincident cooling loads occurring at the same time are negligible. The energy modeling results indicate peak space heating occurs January 10th at 6 a.m., based on the modeled weather data. Peak space cooling loads occurring in the summer are lower than the space heating peak. The analyst uses the simulation outputs to identify simultaneous SWH loads of 200,000 Btu/h (60 kW), resulting in peak coincident loads of 1,2000,000 Btu/h (350 kW). This requires the project to install 1,2000,000 Btu (350 kWh) of thermal storage capacity to earn 1 point.

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 219