Torrance, CA—Partner Engineering and Science, Inc. (Partner), a national environmental and engineering consulting firm, and sister company Partner Energy, have recently earned the U.S. Environmental Protection Agency’s (EPA’s) ENERGY STAR Certification for their headquarters in Torrance, CA, located at 2154 Torrance Blvd. This certification signifies that Partner’s facility meets strict energy efficiency performance levels set by the EPA and performs in the top 25 percent when compared to similar facilities nationwide. The criteria for selection include analyzing 12 months of utility consumption data, building operations and tenant behavior.

“We are thrilled to be recognized for our energy efficiency initiatives by this ENERGY STAR Certification,” said Joseph Derhake, PE, president of Partner. “As a national engineering, environmental, and energy consulting firm, we take seriously our responsibility to become better stewards of our community and put our money where our mouth is, so to speak. This collaborative effort with our sister company, Partner Energy, at our headquarters has led to an increase in energy efficiency and a decrease in energy costs.”

Partner headquarters features many green technologies, including efficient lighting throughout the interior and exterior of the building, electric car charging stations, ultra low flow toilets that require less water per flush, motion sensor controlled lighting to eliminate inefficiency of use and a smart HVAC system with automated temperature controls for maximum efficiency. Additionally, a bed of drought-resistant, low maintenance plants on the roof reduce heat gain and minimize storm water runoff.

In addition to the ENERGY STAR certification initiatives, Partner has implemented the use of rooftop solar panels that generate a significant portion of their overall building energy requirements in order to further the energy efficiency goals of the company and meet the requirements of LEED® certification, which the headquarters also received in September.


ENERGY STAR was introduced by EPA in 1992 as a voluntary, market-based partnership to reduce greenhouse gas emissions through energy efficiency. Today, the ENERGY STAR label can be found on more than 65 different kinds of products, 1.4 million new homes, and 20,000 commercial buildings and industrial plants that meet strict energy-efficiency specifications set by the EPA. Over the past twenty years, American families and businesses have saved more than $230 billion on utility bills and prevented more than 1.8 billion metric tons of greenhouse gas emissions with help from ENERGY STAR.
To learn more about ENERGY STAR, visit