ASHRAE-90.1-2022- - Page 184

Extracted Content

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11.1.5 Climate. Climate zones shall be determined in accordance with Section 5.1.5.

11.2 Compliance Paths. New buildings, additions, substantial alterations as described in Section 11.1.4.1,

11.2.2 Additional Requirements to Comply with Section 11 (Not used)

11.3 Simplified Building Compliance Path (Not used)

Informative Note: The energy credit values in Table 11.5.1-1 and Tables 11.5.3-1 through 11.5.3-9 represent about 0.1% total building annual energy cost savings per point.

11.5.1 Energy Credits Required. Projects shall achieve the total of credits required in Table 11.5.1-1 based on the building use type and climate zone. Projects with multiple building use types, unconditioned or semiheated buildings, parking garages, projects using on-site renewable energy, alterations, and buildings with separate shell-and-core and initial build-out construction permits shall comply as follows:

a. Where a project contains multiple building use types or situations covered in items (b), (c), and (d)

1. The building core and shell project shall achieve at least 50% of the energy credits required in Table 11.5.1-1 where the core and shell project includes a central HVAC system or service water heating system that includes chillers, boilers, service water heating equipment, or loop pumping systems with heat rejection. Otherwise, the building core and shell project shall achieve at least 33% of the energy credits required in Table 11.5.1-1. The building core and shell permit shall not be eligible for credits from measures involving nonpermanent services in future build-out areas, such as freeze protection and limited lighting.
2. Initial build-out construction, as described in Section 11.1.4.2, shall be deemed to comply with this section where one of the following applies: i. Where the initial build-out project includes HVAC heating and cooling generation equipment, the energy credits achieved under the initial build-out project are not less than 50% of the credits required in Table 11.5.1-1. ii. Where the initial build-out project receives heating and cooling services from the core and shell

building —excluding condenser loop water—the energy credits achieved under the initial buildout project are not less than 25% of the credits required in Table 11.5.1-1. iii. The energy credits achieved under the initial build-out project, plus the energy credits achieved

under a prior core and shell permit—not including core and shell credits from measures L02, L03, L04, L05, L06, G01, or G02—total at least the credits required in Table 11.5.1-1.

d. Unconditioned spaces, semiheated spaces, and parking garages shall achieve 50% of the credits required

for the “Other” building use type in Table 11.5.1-1. e. Where roof space or insolation available for on-site renewable energy is limited according to the defini tion of RA net in Equation 11.5.1, the energy credit requirement in Table 11.5.1-1 shall be adjusted and EC adj used in place of EC req, where EC adj is determined using one of the following:

1. Where the project meets any exception to Section 10.5.1.1, the PV adj credits shall be subtracted from the credits required for the climate zone to find EC adj .
2. Otherwise, energy credits adjusted for renewable energy resource availability shall be determined as follows:

182 ANSI/ASHRAE/IES Standard 90.1-2022 (I-P)