Portfolio Manager Eligibility Guidelines
Portfolio Manager explains the eligibility requirements for tracking and benchmarking energy use over time in commercial and institutional buildings.
PECI’s 15 Operations & Management Best Practices for Energy-Efficient Buildings
A helpful guide to assist facility managers with best practices for common energy-efficiency issues.
2010 Professional Engineer
A helpful guide for use of Portfolio Manager to track energy utility data.
EPA’s Energy Star Portfolio Manager
EPA's system for helping you track and improve energy efficiency across your entire portfolio of buildings.
Lighting Research Center
This website is associated with the Lighting Research Center at Rensselaer Polytechnic.
International Dark-Sky Association IDA
Links to manufacturers with IDA-approved fixtures, information sheets and practical guides, and resources for learning.
Illuminating Engineering Society of North America (IESNA)
IES correlates research, investigations, and discussions to guide lighting professionals and lay persons via consensus-based lighting recommendations.
Outdoor Site-Lighting Performance: A Comprehensive and Quantitative Framework for Assessing Light Pollution
This paper describes a method of measuring and predicting glow, glare and trespass in outdoor lighting.
Lighting Power Density
A comprehensive source for understanding the lighting models underlying the commercial lighting power limits developed in ASHRAE/IESNA 90.1-2004.
Elights (Dark-Sky Lighting Products)
Elights sells full cut-off light fixtures.