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Lighting control devices and systems must be functionally tested (this includes occupancy sensors, time switches, programmable schedule controls and photosensors) [20] Advanced lighting control is an effort made by ASHRAE 90.1-2010 to significantly reduce the energy used for lighting by commercial buildings. [20]
The 2019 California Energy Code became effective on January 1, 2020. [5] It focuses on such areas such as residential photovoltaic systems, thermal envelope standards and non-residential lighting requirements. Homes built under this code are about 53% more energy efficient than those built to comply with the 2016 Energy Code. [6]
Updates to the lighting section include modified lighting power allowance requirement for interior and exterior lights; and modifications to lighting control requirements based on daylighting and occupancy sensors. In the mechanical section, minimum efficiency requirements for many types of HVAC equipment are revised.
Examples of implicit occupancy sensors includes CO 2 sensors and Wi-Fi-connected device count. [1] The selection of occupancy sensing devices depends on the size of the space being monitored, the budget for sensors, the desired accuracy, the goal of the sensor (detecting occupant presence or count), and security considerations.
An indoor light switch equipped with PIR-based occupancy sensor [1] An occupancy sensor is an indoor device used to detect the presence of a person. Applications include automatic adjustment of lights or temperature or ventilation systems in response to the quantity of people present. The sensors typically use infrared, ultrasonic, microwave ...
A temperature sensor in the zone provides feedback to the controller, so it can deliver heating or cooling as needed. If enabled, morning warmup (MWU) mode occurs prior to occupancy. During morning warmup the BAS tries to bring the building to setpoint just in time for occupancy. The BAS often factors in outdoor conditions and historical ...
This year's Capitol holiday tree lighting is the state's 92nd. It was also held virtually in 2020 during the Covid-19 pandemic, when in-person gatherings of all kinds were discouraged around the ...
In the paper "Energy savings due to occupancy sensors and personal controls: a pilot field study", Galasiu, A.D. and Newsham, G.R have confirmed that automatic lighting systems including occupancy sensors and individual (personal) controls are suitable for open-plan office environments and can save a significant amount of energy (about 32% ...
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