概述
An incentive is available for systems that incorporate energy-saving strategies based on the amount of cooling tons controlled. For projects that will be done in phases, tonnage will be prorated based on the controlled area. The control strategies must meet the following criteria:
- 必须安装在合格的暖通空调上吗
- At least one strategy from the options below must be implemented per HVAC system type
- Only control strategies not currently installed are eligible
- Control strategies installed on existing qualified HVAC equipment qualify for the retrofit incentive
- Control strategies installed on newly purchased HVAC equipment qualify for the new construction incentive
策略1:最佳启动和最佳停止
Optimum start controls automatically adjust the start time of a space conditioning system to bring the space to desired temperature levels at the beginning of scheduled occupancy each day.
才有资格采用这种策略, the fan start time is delayed until the fan run time matches that needed to meet the desired zone temperature. The fan stop time is advanced until the fan run time matches that needed to meet the desired zone temperature.
策略2:节能器控制
The economizer control mode is typically enabled or disabled based on outside air-dry-bulb temperature (temperature-based economizer) or outside air enthalpy in comparison with the return air enthalpy.
才有资格采用这种策略, economizer controls are enabled when the outside air temperature is below the maximum allowed temperature. The economizer must have differential control and be configured to allow free cooling and economizing at outside air temperatures up to 65°F.
Economizers on new HVAC units are only eligible for incentives where not already required by code. New HVAC systems 5 tons and greater are not eligible for incentive.
策略3:需求控制通风(DCV)
许多类型的高占用空间, 比如教室, 多用途的房间, 影院, conference rooms or lobbies have ventilation designed for a high occupancy that rarely occurs. Ventilation can be reduced when spaces are vacant or lower than peak occupancy. 当通风减少时, less outside air is being heated or cooled which results in energy savings. In colder climates, heating for ventilation air is greater and DCV saves the most energy.
才有资格采用这种策略, the maximum outside air fraction must be varied based on DCV sensor.
策略四:送风温度重置(SATR)
SATR allows the supply air temperature to rise as much as possible but still satisfy room temperature and relative humidity set points. Many HVAC systems in offices and manufacturing applications supply a constant supply air temperature year-round (typically 55°F) in order to provide comfortable relative humidity in the hot summer months and prevent mold.
才有资格采用这种策略, the supply air temperature must be reset based on outside air temperature.
策略5:冷冻水复位
Chilled water reset adjusts the chilled water set point to improve the efficiency of the chiller, 减少冷水机的能源使用. 通常, a chilled water reset strategy raises the set point temperature when the building load is at less-than-design conditions.
才有资格采用这种策略, the supply chilled water temperature must be allowed to rise during low loads.
策略6:冷凝器水复位
随着负载的变化, the chilled water supply temperatures adjust to satisfy the new operating conditions. 经常, water-cooled chilled water plants can decrease the condenser water temperature in times of low cooling load.
才有资格采用这种策略, the cooling tower temperature floats with the load and wet-bulb temperature. This strategy is not eligible for new HVAC systems.
激励
| 策略数量 | 改造:现有 | 改造:新系统 | 新建筑 |
|---|---|---|---|
| 1策略(仅适用于爱达荷州) | 每吨100美元 | 每吨60美元 | 每吨60美元 |
| 两个策略 | 每吨150美元 | 每吨80美元 | 每吨80美元 |
| 3个策略 | 每吨175美元 | 每吨100美元 | 每吨100美元 |
| 4策略 | 每吨200美元 | 每吨120美元 | 每吨120美元 |
| 5战略 | 每吨225美元 | 每吨140美元 | N/A |
回报
Simple payback period will vary based on number of strategies and type of HVAC system.