HVAC Upgrades and PA Tier II RECs

HVAC Upgrades: A Major Source of PA Tier II REC Revenue

Heating and cooling systems are the largest energy consumers in most commercial buildings, accounting for 40–60% of total electricity usage. When you upgrade an inefficient HVAC system, the kWh savings can be substantial — and every MWh of verified savings translates to a tradeable PA Tier II REC.

Which HVAC Equipment Qualifies?

Nearly any HVAC upgrade that reduces electricity consumption at a Pennsylvania facility qualifies for Tier II RECs:

• Rooftop units (RTUs): Replacing older packaged units with high-efficiency models (16+ SEER) produces measurable savings, especially in retail and light commercial applications.
• Chillers: Centrifugal, screw, and scroll chiller replacements in large commercial buildings often generate the highest per-project savings — 200,000 to 1,000,000+ kWh/year depending on building size.
• Heat pumps: Air-source heat pumps, water-source heat pumps, and [geothermal ground-source heat pump systems](https://pasrecs.com/geothermal) all qualify. Heat pumps are particularly attractive because they reduce both heating and cooling energy consumption.
• Boiler replacements: When electric resistance heating or older electric boilers are replaced with high-efficiency models or heat pump systems, the electrical savings generate RECs.
• VFDs on HVAC motors: Adding [variable frequency drives](https://emergentmetering.com) to chilled water pumps, condenser water pumps, and air handling unit fans delivers 20–50% energy savings on those specific loads.

Revenue Potential by HVAC Project Type

• RTU replacement (50,000 sq ft retail): Typical savings of 60,000–100,000 kWh/year → $1,300–$2,200/year in REC revenue.
• Chiller replacement (200,000 sq ft office): Savings of 300,000–500,000 kWh/year → $6,600–$11,000/year in REC revenue.
• Geothermal conversion (80,000 sq ft): Savings of 350,000–500,000 kWh/year → $9,422–$13,460/year in AEC revenue at $26.92. Ground source and groundwater source heat pumps carry a 15-year TRM life (2026 PA TRM Vol. 3, § 3.2.4), which sits at the Act 129 claimable cap, so there is nothing to truncate — $141,330–$201,900 over 15 years.
• VFDs on HVAC systems (large facility): Savings of 100,000–250,000 kWh/year → $2,200–$5,500/year in REC revenue.

Documentation That Strengthens Your Application

HVAC projects benefit from multiple documentation sources:

• Utility rebate records: If you received rebates from PPL, PECO, or FirstEnergy, the application documents contain verified savings calculations.
• Equipment specifications: Manufacturer data sheets showing efficiency ratings (SEER, EER, COP, kW/ton) for both old and new equipment.
• Energy monitoring data: [Submetering on HVAC circuits](https://emergentmetering.com) provides real-time verification of energy savings and strengthens your REC application.
• Building energy modeling: ASHRAE-compliant energy models or eQUEST simulations can serve as supporting evidence.

Combining HVAC RECs with Other Measures

Many buildings implement HVAC upgrades alongside other efficiency measures — LED retrofits, building envelope improvements, or controls upgrades. Each qualifying measure can be bundled into a single REC registration, maximizing your total credit production.

For example, a 150,000 sq ft commercial building that combines an LED retrofit with a chiller replacement might generate 800+ MWh in annual savings — producing $17,600+/year in combined REC revenue.

Find out what your HVAC project is worth. [Submit your project details](/#submission) for a custom evaluation — we'll estimate your annual REC revenue within 48 hours.