Stack Utility Rebates + RECs from the Same Project
You can claim both PA utility rebates from PPL, PECO, or FirstEnergy AND PA Tier II RECs for the same energy efficiency project. They're completely separate programs — learn how to stack these incentives.
See What Combined Rebate + AEC Revenue Looks Like
Rather than a static example, we maintain a full worked model with current pricing and complete arithmetic.
See a worked model with full arithmetic →Qualifying Energy Efficiency Measures
LED Lighting Retrofits
Interior, exterior, high-bay, parking garage, and signage upgrades
Typical savings
2.5–4.5 kWh/sq ft
HVAC System Upgrades
RTUs, chillers, heat pumps, boiler replacements
Typical savings
3.0–5.0 kWh/sq ft
Variable Frequency Drives
VFDs on fans, pumps, compressors, and process motors
Typical savings
1.5–3.5 kWh/sq ft
Compressed Air Optimization
Leak repairs, VSD compressors, pressure reduction
Typical savings
1.0–2.5 kWh/sq ft
Building Automation Systems
BAS, EMS, scheduling, and controls upgrades
Typical savings
1.0–2.0 kWh/sq ft
Building Envelope
Insulation, windows, air sealing, cool roofs
Typical savings
0.5–1.5 kWh/sq ft
How Incentive Stacking Works
These programs are administered by different entities with independent eligibility. You can — and should — pursue all available incentives from a single project.
Utility Rebate
One-time incentive from PPL, PECO, or FirstEnergy
Type
One-time payment
Typical Value
$15,000–$30,000
PA Tier II RECs
Annual credits through PJM-GATS over the measure's TRM life (Act 129 caps claimable life at 15 years)
Type
Recurring annual
Typical Value
$5,000–$15,000/yr
Federal Tax Incentives
179D deduction or ITC for qualifying equipment
Type
Tax benefit
Typical Value
Varies by project
Strengthen Your Application with Energy Monitoring
Installing energy monitoring and submetering on your upgraded systems provides real-time M&V data that strengthens both your rebate applications and REC registrations. Verified kWh data accelerates approvals and maximizes credit volumes.
Whether you're metering lighting circuits, HVAC systems, or VFD-controlled motors, real consumption data is the gold standard for savings verification.
Recent Projects May Still Qualify
Energy efficiency projects that remain operational and verifiable may still qualify for PA Tier II AEC certification. AEC issuance begins on the date a complete PennAEPS application — including a meter or inverter reading — is filed under 52 Pa. Code § 75.63(i). A measure running unregistered is running without earning: nothing is forfeited, because nothing was ever issued — the earning period simply starts later, and eligibility turns on remaining measure life.
Model your project's AEC revenue
Start from annual kWh conserved (M&V or Act 129 rebate calculations). 1,000 kWh conserved equals 1 AEC. Issuance begins at the complete application filing, so time spent unregistered is time the measure runs without earning.
From M&V or Act 129 rebate calculations. 1,000 kWh conserved = 1 AEC.
RY2025 weighted average $26.92; RY2025 spot average $36.43. Different measures — not interchangeable.
Annual AECs
2.5k
Annual revenue
$67.3k
Monthly cost of delay
$5.6k
10-year revenue
$673.0k
Modeled estimate. Actual AEC issuance begins at the complete application filing and depends on PennAEPS qualification, meter placement, capacity factor realized, and contract-assigned attribute ownership. We review these before an application goes in.
Find Out What Your Project Is Worth
Submit your project for a custom evaluation. We'll identify all available rebates and REC revenue.
Get Custom EstimateNot ready to submit a project?
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Reference material for facilities in research mode, and market intelligence for anyone who wants to know when PA Tier II AEC pricing moves.
PA Tier II AEC eligibility checklist
One page. What § 75.62 / § 75.63 require, the documentation PennAEPS asks for, meter-placement questions to settle before an application, and the attribute-ownership contract review. We email it as a PDF.
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Quarterly market update
Current PA Tier II AEC pricing, ACP position, PRESS Act status, regulatory developments worth tracking. Sent when pricing moves outside a stated band or a material regulatory event occurs. Not a marketing list.
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Related guides and case studies
Lighting, motors, VFDs, and whole-building efficiency measures that generate Tier II AECs.
- After the PECO Rebate: PA Tier II AECsPECO-territory efficiency upgrades may also support Pennsylvania Tier II AECs after the rebate. How stacking works — and how PASRECs helps. Sep 7, 2026 9 min read
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- How AEC Savings Are Calculated: Baselines and New ConstructionA retrofit is measured against the equipment you already had. A new building is measured against code. That single difference reshapes the savings number, and the TRM's dual baseline changes it again mid-life. Aug 29, 2026 12 min read
- You Already Have Most of the DocumentationIf you filed a custom Act 129 rebate, the savings figure has already been calculated and reviewed. That is the hardest part of a PennAEPS application, and it is already done. Aug 1, 2026 8 min read
- Selling Your Tier II AECs: Broker vs. Aggregator vs. Going DirectYou have verified savings — now how do you turn Tier II AECs into cash? Compare going direct, using a broker, or working with an aggregator to find the right fit for your project. Jul 6, 2026 10 min read
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- Pennsylvania's Alternative Energy Credit Market at a CrossroadsA forward-looking analysis of Tier I and Tier II dynamics, the PRESS proposal under House Bill 501, and what the two-phase price dynamic means for compliance buyers and credit generators through 2035. Mar 28, 2026 18 min read
- Geothermal Retrofit AEC Revenue Model: 200,000 Sq Ft Office ComplexA 200,000 sq ft cooling-dominated office complex replacing 25-year-old chillers with a 400-ton GSHP would conserve roughly 840 MWh of electricity annually. Here is what that produces in Tier II AECs, with the arithmetic shown. Mar 27, 2026 8 min read
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- How Geothermal Heating and Cooling Systems Qualify for PA Tier II RECsGround-source heat pumps deliver massive energy savings — and those savings translate directly into Tier II Renewable Energy Credits. Learn how geothermal HVAC qualifies and how to maximize your REC revenue. Mar 25, 2026 9 min read
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- Environmental Attributes and REC RetirementUnderstand what environmental attributes are bundled into Tier I and Tier II RECs, how the registration process transfers ownership, and why retiring versus selling RECs has dramatically different implications for greenhouse gas accounting. Mar 17, 2026 12 min read
- Utility Rebates AND PA Tier II RECs: Getting BothMany building owners assume they have to choose between utility rebates and RECs. Wrong — they're completely separate programs, and you should pursue both. Here's how to maximize your return. Mar 15, 2026 7 min read
- 2025 PA AEPS Report: Costs and Tier II Price SurgeThe PA Public Utility Commission's 2025 AEPS annual report reveals $702 million in total compliance costs, Tier II prices at $26.92/MWh, and a looming supply shortfall. Here's what building owners and project developers need to know. Feb 25, 2026 12 min read
- PA Tier II RECs: Efficiency Project RevenuePennsylvania's AEPS requires electricity suppliers to procure RECs from Tier II resources including energy efficiency and CHP. With rising REC values and in-state requirements, Tier II credits offer significant new revenue streams for businesses. Oct 27, 2025 10 min read
- From Meter to Market: Monitoring Data and REC RevenueFollow the data journey from circuit-level energy meters through M&V analysis to PJM-GATS certification and REC monetization. A step-by-step look at how monitoring powers the REC pipeline. Mar 18, 2025 10 min read
- Continuous Monitoring: Protecting REC RevenueEnergy savings don't last forever without oversight. Learn how continuous monitoring detects performance drift, preserves REC generation, and ensures your efficiency investments deliver full lifetime value. Mar 16, 2025 10 min read
- Submetering Strategies for Multi-Measure ProjectsWhen a facility implements LED, HVAC, and VFD upgrades simultaneously, how do you attribute savings to each measure? Submetering strategies provide the answer — and unlock maximum REC value. Mar 14, 2025 10 min read
- Energy Monitoring 101: M&V for Rebates and Tier II RECsAccurate measurement and verification (M&V) is the foundation of every successful REC application. Learn how modern energy monitoring systems collect the data you need to maximize rebate recovery and Tier II REC revenue. Mar 10, 2025 11 min read
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- U.S. Utility Rebate Trends in 2025Utility rebate programs are evolving fast. From IRA-driven funding boosts to stricter efficiency mandates, here's a nationwide look at where incentives are headed and how to capture maximum value. Mar 1, 2025 12 min read
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- Which Projects Qualify for PA Tier II RECs?From LED lighting to variable frequency drives, dozens of energy efficiency measures qualify under PA Act 129 and the AEPS. Discover the full list of eligible technologies and documentation requirements. Jan 28, 2025 10 min read
- Submitting a Project for PA Tier II REC CertificationA step-by-step guide to assembling your documentation — utility rebate records, M&V reports, and invoices — and navigating the PA PJM-GATS registration process with ease. Dec 20, 2024 10 min read
- Act 129 Phase V: the targets, the budgets, and what actually changedPennsylvania's Act 129 Phase V runs June 2026 through May 2031 with a $1.22 billion budget and 3.3 million MWh in savings targets. Here is what changed, EDC by EDC. Nov 18, 2024 10 min read
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Browse the full library in the PA Tier II AEC insights index.