A Nationally Recognized Industry Leader in Energy & Sustainability Consulting, Providing Energy Project Management & Oversight.

Celtic Energy’s mission is to help our clients achieve their energy goals and minimize risk through our work as the nation’s most effective independent ESPC & PACE Third-Party Consultant and Sustainability Project Manager, while acting as a trusted advisor and educator on all energy-related topics.

How do we bring value to a client’s energy project?

  • Ensure You Get What You Pay For – Several CEI staff are former Director-level ESCO employees, so we know ESCO pricing and we ensure that our clients understand how much they are paying through an “open book” cost buildup.
  • Enhance Your Energy Savings – We have overseen energy projects across the U.S. and can use our best-practices knowledge to help clients reduce their energy costs.
  • Maximize Your ROI – Our ability to discover potential pitfalls early in a project minimizes client risk and maximizes return on investment.

Excellence.

Excellence.

Our highly credentialed and experienced consultants ensure successful energy project outcomes for our clients.

Trust.

Trust.

Always independent, we provide advice our clients can rely on to be in their best interests.

Knowledge.

Knowledge.

Our expertise in energy processes, technology and programs helps clients understand complex energy projects and the options that are available.

Diligence.

Diligence.

We dig deep to find technical, procedural and political solutions that ensure project success.

Energy Solutions for a Sustainable Future

Celtic Energy helps clients minimize risks associated with major energy projects by:

  • Advising you on what you need to optimize energy savings, not what you are sold
  • Training you on the process and helping define realistic expectations
  • Delivering you a defensible position that your organization will embrace

Get Started Today

Learn more about how Celtic Energy can help you initiate and manage energy projects to upgrade infrastructure while reducing energy costs and environmental impacts.

Recent News

Read about the CEI’s latest news and events on energy-related topics

CEI Director of Sustainability Services to Speak at Building Energy NYC

Christopher Lotspeich, Director of Sustainability Services at Celtic Energy, will be presenting at NESEA’s BuildingEnergy NYC 2015. His presentation, entitled “Microgrid Solutions: From.. Read More →

Key Milestones for CEI Engineering Team

Celtic Energy Announces New Project Manager James Pagliaro Promoted to Project Manager CEI is pleased to announce that James Pagliaro, former Senior Energy.. Read More →

CEI President Speaks at Energy Conferences in Delaware and Louisiana

CEI President Speaks at NAESCO and ESC Conferences With over 30 years of experience in the energy industry, Christopher Halpin, President of Celtic.. Read More →
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A Word from Our Clients

It is because of the supervision of Celtic Energy that our Performance Contracting process has progressed so smoothly and in the best interests of the District. CEI is a highly impressive company who has exceeded our expectations, providing top-notch service and allowing us to foster a great professional relationship. We look forward to future years of working with CEI.- Holly Luna, CFO, Business Services | Douglas County School District, NV
Whether to do a standard analysis of an energy efficiency building audit or to run an accurate building computer model (a very powerful tool but one that requires highly trained professionals), Celtic Energy, Mr. Halpin’s firm, is one of the best I have dealt with. I would highly recommend Celtic Energy for any organization in need of energy consulting services.- Thomas Hattery, Former Federal Financing Specialist | Maryland Department of Energy
Fort Drum would like to thank the staff at Celtic Energy for their support of our recently awarded ESPC contract . . . Your guidance in the process, ensuring that technical and contract concerns were addressed, was invaluable. We enjoyed working with you and would not hastate to use Celtic Energy as our facilitator at our next round of ESPC contracting.- Stephen Rowley, Energy Manager | Public Work Fort Drum, NY
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