The Commercial Energy Code TAG voted to retain the Targeted Space Performance Requirement (TSPR) in the commercial energy code materials and approved a set of edits intended to align TSPR with the rest of the code and to clarify how it interacts with other efficiency credits.

In related actions, the TAG supported drafting references to standards and test methods for gas‑fired heat pumps so those technologies can be evaluated as eligible for energy credits. TAG members asked staff and Pacific Northwest National Laboratory (PNNL) to produce modeling and example project cases showing how gas‑fired heat pumps and TSPR would perform under different configurations and in different climate zones.

On TSPR, the panel approved updated language to move the metric from a carbon basis to site energy and asked staff to restore TSPR language to the code where it had been stricken, while retaining safeguards so credits are not double counted with envelope or HVAC measures.

The TAG also voted to add references — not prescriptive efficiency numbers — to ANSI and ASHRAE test standards for gas‑fired heat pumps (ANSI Z21 family for combustion/rating and ASHRAE 118.1 for commercial water‑heater testing), and asked PNNL to determine appropriate credit lines and minimum baselines for the equipment types in the code’s table of system types.

Members requested sample designs showing how a project using federal‑minimum +5% gas appliances could still comply with TSPR and how gas‑fired heat pumps would compare with electric heat pumps under an annualized load profile. TAG members stressed the need to avoid unintended consequences: one member warned that a poorly‑calibrated TSPR could make compliance impossible for gas‑heavy buildings without careful modeling and baselines.

Outcomes: the TAG approved the modified TSPR language and edits (roll calls and motions were taken across several related agenda items). Members directed PNNL and staff to produce modeling, calibrated baselines and example designs for MVPE and council review.