Office Lighting: Daylight & LENI

Freelance work for Light Bureau

LENI looks at energy use rather than installed load. It measures predicted energy used by a lighting system over the length of a year (measured in kilowatt hours, per square metre, per year).It also takes into account daylight availability, sensors, occupancy etc. thus making it a very powerful tool to assess lighting energy savings.

LENI calculations were performed for the proposed lighting design using BS EN 15193-1 + A1.

Further, a set of options for mitigations/improvements to the office spaces were explored which could improve the daylight levels and distribution in the working areas.

Architect: Perkins&Will

Client: Confidential