Abraxas Energy Consulting in Carlsbad provides commercial energy auditing, retro-commissioning, and utility bill tracking services from its Loker Avenue East office near Poinsettia Park. The firm's ASHRAE-level energy assessments evaluate building envelope performance and HVAC system efficiency — analysis that feeds into the renewable design work at Alternative Energy Systems Consulting. Founded in 2001 and acquired by Hillmann Consulting in February 2024, Abraxas holds Certified Energy Manager (CEM), Certified Commissioning Authority (CxA), and Certified Measurement & Verification Professional (CMVP) credentials through the Association of Energy Engineers. Federal clients include the Army Corps of Engineers, U.S. Navy, FBI, VA hospitals, and GSA facilities, with the firm's Metrix 4 software serving as the industry-standard M&V tool for most large ESCOs nationwide. Solar and photovoltaic performance data from those audits informs the system sizing and installation specifications executed by EcoDirect for North County commercial properties. The firm's most data-intensive projects involve ASHRAE Level III investment-grade audits covering 100-plus buildings and exceeding 40 million square feet of combined floor area.