NC-v5 EAc1: Electrification 1-5 points
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To encourage building design that does not depend on burning fuel on-site, which leads to better indoor and outdoor air quality and to low-carbon operations as the grid decarbonizes.
Requirements
Platinum Requirements:
Five points are required.
Option 1. No On-Site Combustion (5 points)
Design and operate the project from start-up with no on-site combustion except for emergency support systems.
Combined weighted average equipment efficiency for space heating and service water heating (SWH) must be at least 1.8 coefficient of performance (COP).
The following equipment may be excluded from the COP determination:
- Space heating equipment in climate zones 0–2.
- Supplemental heating equipment designed only for operation at low temperatures.
- SWH equipment in nonresidential spaces complying with the point-of-use water heater criteria in ASHRAE 90.1-2022, Section 11.5.2.3.3, W05, without exceptions.
OR
Option 2. No On-Site Combustion Except at Low Temperatures (1–4 points)
Pursue any combination of the following paths for a maximum of 4 points:
PATH 1. SPACE HEATING (2 POINTS)
Design space heating to be capable of operating without on-site combustion except in low temperatures. Projects in climate zones 3 and above must have a weighted average space heating equipment efficiency of at least 1.8 COP.
The following equipment may be excluded from the COP determination:
- Supplemental or auxiliary heating equipment designed only for operation at low temperatures.
AND/OR
PATH 2. SERVICE WATER HEATING (1 POINT)
Design SWH systems to be capable of operating without on-site combustion except at low temperatures. Projects with total SWH capacity exceeding 34,000 Btu/hr (10 kW) must have a weighted average service hot water equipment efficiency of at least 1.8 COP OR domestic hot water solar fraction of at least 0.4.
The following equipment may be excluded from the COP determination:
- SWH equipment in nonresidential spaces complying with the point-of-use water heater criteria in ASHRAE 90.1-2022, Section 11.5.2.3.3, W05, without exceptions.
- Supplemental or auxiliary heating equipment designed only for operation at low temperatures.
AND/OR
PATH 3. COOKING AND OTHER PROCESS LOADS (1 POINT)
Design cooking, laundry, process equipment, and on-site power generation except emergency support systems to be capable of operating without on-site combustion. Projects that do not have these systems automatically earn this point.
The following equipment may be excluded:
- Process heating equipment designed for operation at low temperatures.
Equipment efficiency: Determine weighted average COP using either of the following:
- Equipment efficiencies at rated conditions: For equipment with multiple rated conditions, use the rating closest to 17°F (−9°C) outside air dry-bulb temperatures (OA db), 32°F (0°C) entering liquid temperature, or 44°F (6°C) heating source leaving liquid temperature.
- Annual average COP calculated with an energy simulation.
District energy: Projects with district energy must comply with the requirements of this credit at the district facility or see additional guidance for interpretation of credit requirements.
Fuel cells: Fuel cells using fossil fuel are ineligible for credit.
Low temperatures: The term Low temperatures refers to OA db below 20°F (−6.5°C).
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To encourage building design that does not depend on burning fuel on-site, which leads to better indoor and outdoor air quality and to low-carbon operations as the grid decarbonizes.
Requirements
Platinum Requirements:
Five points are required.
Option 1. No On-Site Combustion (5 points)
Design and operate the project from start-up with no on-site combustion except for emergency support systems.
Combined weighted average equipment efficiency for space heating and service water heating (SWH) must be at least 1.8 coefficient of performance (COP).
The following equipment may be excluded from the COP determination:
- Space heating equipment in climate zones 0–2.
- Supplemental heating equipment designed only for operation at low temperatures.
- SWH equipment in nonresidential spaces complying with the point-of-use water heater criteria in ASHRAE 90.1-2022, Section 11.5.2.3.3, W05, without exceptions.
OR
Option 2. No On-Site Combustion Except at Low Temperatures (1–4 points)
Pursue any combination of the following paths for a maximum of 4 points:
PATH 1. SPACE HEATING (2 POINTS)
Design space heating to be capable of operating without on-site combustion except in low temperatures. Projects in climate zones 3 and above must have a weighted average space heating equipment efficiency of at least 1.8 COP.
The following equipment may be excluded from the COP determination:
- Supplemental or auxiliary heating equipment designed only for operation at low temperatures.
AND/OR
PATH 2. SERVICE WATER HEATING (1 POINT)
Design SWH systems to be capable of operating without on-site combustion except at low temperatures. Projects with total SWH capacity exceeding 34,000 Btu/hr (10 kW) must have a weighted average service hot water equipment efficiency of at least 1.8 COP OR domestic hot water solar fraction of at least 0.4.
The following equipment may be excluded from the COP determination:
- SWH equipment in nonresidential spaces complying with the point-of-use water heater criteria in ASHRAE 90.1-2022, Section 11.5.2.3.3, W05, without exceptions.
- Supplemental or auxiliary heating equipment designed only for operation at low temperatures.
AND/OR
PATH 3. COOKING AND OTHER PROCESS LOADS (1 POINT)
Design cooking, laundry, process equipment, and on-site power generation except emergency support systems to be capable of operating without on-site combustion. Projects that do not have these systems automatically earn this point.
The following equipment may be excluded:
- Process heating equipment designed for operation at low temperatures.
Equipment efficiency: Determine weighted average COP using either of the following:
- Equipment efficiencies at rated conditions: For equipment with multiple rated conditions, use the rating closest to 17°F (−9°C) outside air dry-bulb temperatures (OA db), 32°F (0°C) entering liquid temperature, or 44°F (6°C) heating source leaving liquid temperature.
- Annual average COP calculated with an energy simulation.
District energy: Projects with district energy must comply with the requirements of this credit at the district facility or see additional guidance for interpretation of credit requirements.
Fuel cells: Fuel cells using fossil fuel are ineligible for credit.
Low temperatures: The term Low temperatures refers to OA db below 20°F (−6.5°C).
See all forum discussions about this credit »