Clean energy advice for Pennsylvania homes, where your meter and your supplier are two different questions
Pennsylvania lets you choose who generates your electricity but not who delivers it — and only one of those two decides what your solar exports are worth.
Most of the confusion we untangle for Pennsylvania homeowners is not about panels at all. It is about a deregulated market where the company on your bill for supply and the company that owns the wires are frequently not the same, and where the net metering tariff belongs entirely to the second one.
Add to that a housing stock older than almost anywhere else we work, winters that put the heating system rather than the air conditioner in charge of the bill, and roofs that carry snow, and the right first move in Pennsylvania is often not solar at all. We advise rather than install, so we are free to say that.
Pennsylvania at a glance
One-for-one net metering
Every kilowatt-hour you export offsets one you consume, credited at the full retail rate.
Systems up to 50 kW
The one-for-one arrangement covers residential systems far larger than most homes need.
Solar AECs
Pennsylvania’s Alternative Energy Portfolio Standards Act turns your generation into tradable credits.
You choose your supplier
Generation is competitive here. Distribution, and net metering with it, is not.
The Pennsylvania true-up detail that catches people out
Through the year, your exported power is credited at your full retail rate no matter which competitive supplier you have signed with. That part is straightforward, and it is why Pennsylvania is a genuinely good net metering state.
The annual true-up is where it gets subtle. When the year is settled, the rate applied is the utility’s own default service rate — the Price to Compare — not the rate on your competitive supply contract. So a supply deal that looks cheap in January can quietly change what a year of surplus generation is worth in the settlement. It is not a reason to avoid switching suppliers; it is a reason to know which number actually governs before you do.
Your two Pennsylvania electricity decisions
| Distribution (your EDC) | Generation (your supplier) | |
|---|---|---|
| Who provides it | Set by your address | You choose, and can switch |
| Owns the wires and meter | Yes | No |
| Runs net metering | Yes | No |
| Sets the annual true-up rate | Yes — default service | No |
| Effect on your solar | Direct | Indirect, at settlement |
Pennsylvania pays you an income, not a discount
There is no Pennsylvania income tax credit for residential solar and no statewide rebate. What the state has instead is the Alternative Energy Portfolio Standards Act, passed in 2004, which obliges electricity distributors to source a rising share of their power from alternative generation and carries a specific solar requirement inside it.
That obligation is met by buying Alternative Energy Credits, Pennsylvania’s version of SRECs, and your system earns them as it generates. The per-credit value is modest and market-driven — a fraction of what a state like New Jersey pays — so we treat it as a bonus that improves the arithmetic rather than the reason to proceed. Registering properly is what turns generation into credits, and it is a step homeowners skip more often than you would expect.
Your utility writes the rules, and one of them is proposing to change them
PECO, PPL Electric, Duquesne Light and the FirstEnergy companies
Pennsylvania law requires every investor-owned distributor — PECO, PPL Electric, Duquesne Light, Met-Ed, Penelec, Penn Power and West Penn Power — to offer one-for-one net metering for residential systems up to 50 kW. Each runs its own interconnection queue and its own tariff underneath the minimum standards the Public Utility Commission sets, so timelines and paperwork differ even though the credit rate does not.
A proposed change worth watching if you are on PPL
PPL Electric has proposed moving away from one-for-one retail credits toward crediting exports at hourly wholesale market prices instead. It is a proposal rather than a decision, and we will not tell you it has happened when it has not — but if you are in the Lehigh Valley or elsewhere in PPL territory, it belongs in your decision now rather than as a surprise later. We will tell you where the proceeding stands when we speak.
Cooperatives and municipal systems
Not every Pennsylvania electricity provider is a PUC-regulated investor-owned utility. Rural electric cooperatives and municipal systems set their own interconnection and credit terms, so the statewide rules above may simply not apply at your address. Confirming who is on the meter is the first thing we do.
The order we recommend in Pennsylvania
In a cold state with old houses, the envelope usually pays before the panels do. Our recommended sequence:
- Confirm your distributor — it sets the tariff, the queue and the true-up rate
- Look at the envelope first — attic insulation, air sealing and heating equipment often return more per pound than the first few panels
- Size against winter — a system sized on a summer average under-serves a heating-dominated Pennsylvania household
- Then choose ownership — buying and third-party ownership changed places in 2026, and the comparison has to be run
Old houses, cold winters and where solar actually fits
Pennsylvania has a great deal of older housing, and older houses lose heat. We routinely find homes where sealing the attic, improving insulation and replacing tired heating equipment moves the annual bill further than an equivalent spend on generation would have.
That does not make solar wrong here — full retail net metering is genuinely valuable and the roofs are often well suited. It makes sequence important. Roof pitch, age, shading from mature trees and how the roof sheds snow all belong in the conversation before anyone quotes a system size.
The services Pennsylvania homeowners ask us about most
Battery and backup
Winter storms and summer thunderstorms both take Pennsylvania lines down. Storage decides what stays on, and a SPAN panel decides which circuits get it. Explore storage
Roofs and efficiency
On an older roof the sensible order is repair or replace, then mount. Energy-efficient roof replacement and detach and reattach exist for exactly this sequence.
Charging and control
Shifting an EV charge and a heat pump off peak is straightforward once you can see the load. Home EV charging and smart controls make that visible.
Pennsylvania questions we hear most
Does switching electricity supplier affect my solar credits?
Not month to month — your exports are credited at full retail regardless of who supplies your generation. It matters at the annual true-up, which settles against the utility’s default service rate rather than your contract rate. Worth understanding before you sign a supply deal, not after.
Is there a Pennsylvania solar tax credit?
No. There is no state income tax credit and no statewide rebate for residential solar. Pennsylvania’s value comes from one-for-one net metering and from Alternative Energy Credits, plus whatever federal position applies to how you finance the system.
What is an Alternative Energy Credit actually worth?
Less than an SREC in the stronger markets, and it moves with demand from the distributors that have to buy them. We treat it as something that improves an already-sound decision rather than something that makes a marginal one work.
How large a system can I install?
One-for-one net metering applies to residential systems up to 50 kW, which is far above what a typical home needs — so in practice your roof, your usage and your budget set the size, not the rule.
If you are weighing solar, storage or an efficiency upgrade anywhere in Pennsylvania, tell us your distributor, the age of your roof and a recent bill. We will tell you what is worth doing first, and whether that is generation at all.