CS-v5 EAc6: Grid Interactive 1-2 points
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To enhance power resilience and position buildings as active partners contributing to grid decarbonization, reliability, and power affordability through integrated management of building loads in response to variable grid conditions.
Requirements
All projects must evaluate grid-interactive measures concerning the current and forecasted grid context, location, building type, and ownership structure and account for the results in decision-making.
Interval recording meters and equipment capable of accepting an external signal must also be provided.
Option 1. Energy Storage (1–2 points)
Provide on-site electric storage and/or thermal storage meeting the criteria in Table 1.
Include automatic load management controls capable of storing the electric or thermal energy during off-peak periods or periods with low grid carbon intensity and using stored energy during on-peak periods or periods of high grid carbon intensity.
Table 1. Peak Storage Capacity Relative to Peak Demand
Storage | 1 Point | 2 Points |
Electric storage capacity Relative to peak electric demand | 0.2 kWh/kW | 0.4 kWh/kW |
Thermal storage capacity Relative to peak coincident thermal demand (heating + cooling + SWH + process heat) | 1.0 kWh/kW or Btu/Btu/hr or ton-hrs/ton | 2.0 kWh/kW or Btu/Btu/hr or ton-hrs/ton |
AND/OR
Option 2. Demand Response Program (1 point)
Enroll in a minimum one year demand response (DR) contract with a qualified DR program provider, with the intention of multiyear renewal.
On-site electricity generation and fuel combustion cannot be used to meet the demand-side management criteria.
AND/OR
Option 3. Automated Demand-Side Management (1 point)
On-site electricity generation and fuel combustion cannot be used to meet the demand-side management criteria.
PATH 1. SYSTEM-LEVEL CONTROLS (1 POINT)
Provide automated demand response controls for at least two of the following systems installed within the project scope of work:
- HVAC systems (50% of rated capacity)
- Lighting systems (50% of power)
- Automatic receptacle controls
- Service water heating (90% of capacity)
- Electric vehicle supply equipment
OR
PATH 2. BUILDING AUTOMATION SYSTEM (1 POINT)
Develop a plan for shedding at least 10% of the project’s peak electricity demand for a minimum of one hour. The plan must address both winter and summer peaks considering electrified grid projections.
Have in place a control system that automatically sheds electricity demand in response to triggers denoting strain on the grid or high grid emissions. For example:
- A signal from a DR program provider
- Data obtained through an API indicating high grid emissions
- Peak demand tariff period when the grid is operating in the highest demand window
- Time-of-use rate when pricing is highest
AND/OR
Option 4. Power Resilience (1 point)
Identify critical equipment that requires continuous operation. Design the project to be able to island and operate independently from the grid to power the critical loads with the project’s on-site renewable and energy storage systems for at least three days.
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To enhance power resilience and position buildings as active partners contributing to grid decarbonization, reliability, and power affordability through integrated management of building loads in response to variable grid conditions.
Requirements
All projects must evaluate grid-interactive measures concerning the current and forecasted grid context, location, building type, and ownership structure and account for the results in decision-making.
Interval recording meters and equipment capable of accepting an external signal must also be provided.
Option 1. Energy Storage (1–2 points)
Provide on-site electric storage and/or thermal storage meeting the criteria in Table 1.
Include automatic load management controls capable of storing the electric or thermal energy during off-peak periods or periods with low grid carbon intensity and using stored energy during on-peak periods or periods of high grid carbon intensity.
Table 1. Peak Storage Capacity Relative to Peak Demand
Storage | 1 Point | 2 Points |
Electric storage capacity Relative to peak electric demand | 0.2 kWh/kW | 0.4 kWh/kW |
Thermal storage capacity Relative to peak coincident thermal demand (heating + cooling + SWH + process heat) | 1.0 kWh/kW or Btu/Btu/hr or ton-hrs/ton | 2.0 kWh/kW or Btu/Btu/hr or ton-hrs/ton |
AND/OR
Option 2. Demand Response Program (1 point)
Enroll in a minimum one year demand response (DR) contract with a qualified DR program provider, with the intention of multiyear renewal.
On-site electricity generation and fuel combustion cannot be used to meet the demand-side management criteria.
AND/OR
Option 3. Automated Demand-Side Management (1 point)
On-site electricity generation and fuel combustion cannot be used to meet the demand-side management criteria.
PATH 1. SYSTEM-LEVEL CONTROLS (1 POINT)
Provide automated demand response controls for at least two of the following systems installed within the project scope of work:
- HVAC systems (50% of rated capacity)
- Lighting systems (50% of power)
- Automatic receptacle controls
- Service water heating (90% of capacity)
- Electric vehicle supply equipment
OR
PATH 2. BUILDING AUTOMATION SYSTEM (1 POINT)
Develop a plan for shedding at least 10% of the project’s peak electricity demand for a minimum of one hour. The plan must address both winter and summer peaks considering electrified grid projections.
Have in place a control system that automatically sheds electricity demand in response to triggers denoting strain on the grid or high grid emissions. For example:
- A signal from a DR program provider
- Data obtained through an API indicating high grid emissions
- Peak demand tariff period when the grid is operating in the highest demand window
- Time-of-use rate when pricing is highest
AND/OR
Option 4. Power Resilience (1 point)
Identify critical equipment that requires continuous operation. Design the project to be able to island and operate independently from the grid to power the critical loads with the project’s on-site renewable and energy storage systems for at least three days.