Partner Energy is a nationwide provider of energy efficiency engineering, sustainability, and resiliency consulting services. 

Our team of professional engineers, architects, sustainability consultants, commissioning professionals, building scientists, policy and real estate experts are leaders in the energy efficiency and sustainability marketplace.

What We Do

Partner Energy aims to be a trusted advisor for our clients. 

We are technologically and product agnostic and will work with you to identify, capitalize, and implement your accretive energy efficiency, renewable energy, sustainability, and resiliency projects.

We also recommend fiscally-sound solutions to reduce energy usage and cost that will reflect your business goals and investment return criteria.

Our Unique Improvement Process

Our improvement process has been proven effective at thousands of properties nationwide because we understand the challenges of real estate and real estate transactions.

Throughout the building lifecycle, from new construction to managing existing buildings, Partner Energy’s experienced team of professional engineers, architects, and building scientists help our clients to increase asset values, lower ownership costs, improve sustainability, and promote environmental stewardship.

How can we help you?

(888) 826-1216

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Our History

Partner Energy was founded in 2009 by real estate and engineering professionals. Our co-founder and President, Tony Liou, started Partner Energy after noticing an increase in demand for energy efficiency and sustainability consulting services. The demand arose due to the onset of complex energy efficiency and disclosure laws, rising energy costs, and global awareness of climate change.

Our headquarters is based in Southern California with a network across the nation.

Partner Energy’s team of experts maintain the following licenses, credentials, and certifications:

BPI Building Analyst (BA)

BPI Multifamily Building Analyst (MFBA)

BPI Multifamily Building Operator (MFBO)

CalCERTS- Home Energy Rating System (HERS I)

CalCERTS- Whole House Rater (HERS II)

Certified Building Commissioning Professional (CBCP)

Certified Energy Analyst (CEA)

Certified Energy Manager (CEM)

Certified Energy Plan Examiner (CEPE) 

Certified Green Building Professional (CGBP)

Certified GreenPoint Rater (GPR)



Meet Our Team

Certified Sustainable Building Advisor (CSBA)

Certified Building Commissioning Professional (CBCP)

Commissioning Authority (CxA)

EcoDistricts Accredited Professional (AP)


Envision Sustainability Professional (ENV SP)

Fitwel Ambassador

Green Globes Assessor (GGA)

Green Globes Assessor- Existing Buildings (GGA-EB)

Green Globes Professional (GCP)

LEED Accredited Professional (LEED AP)




LEED AP Building Design + Construction (BD+C)

LEED AP Interior Design & Construction (ID+C)

LEED Existing Building Operations & Maintenance (EB+OM)

LEED Green Associate (LEED GA)

LEED for Homes

LEED for Homes Green Rater

LEED for Homes Quality Assurance Designee (QAD)

Professional Engineer (PE)

Registered Architect




Partner Engineering and Science, Inc.

Partner Energy is a division of Partner Engineering and Science, Inc. The parent company was founded in 2007 and is a market-leading provider of environmental, engineering, and construction risk management services. With 40 offices across North America and Western Europe, Partner helps commercial real estate clients make smart investments, manage risk, and bring projects to life.