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Pennsylvania's capital city faces a dual deadline for solar: PPL's proposed net metering change and the Section 48E cutoff both target ~July 2026. Current 1:1 retail credits at $0.21/kWh make the payback compelling — but the window is narrowing.
Cost Range
$2.75-$3.15
Per watt installed
Avg System
13 kW
~$38,350 gross
Payback
13.1 yrs
PPL 1:1 net metering
SREC Income
$419/yr
$22-$35/MWh
PPL Net Metering at Risk: Proposed LMP Change (~July 2026)
PPL Electric Utilities has proposed replacing 1:1 retail net metering credits with hourly LMP (wholesale) rates. This could cut net metering credit value by 60-70%. Systems installed and interconnected before the change are expected to be grandfathered at the current 1:1 rate. Harrisburg homeowners should act before this change takes effect.
2026 Reality: The 30% federal solar tax credit (25D) expired Dec 31, 2025. All costs reflect $0 federal credit for cash/loan purchases. Third-party PPA/lease providers can still claim the commercial ITC (Section 48E) until July 4, 2026. How Section 48E works for you
A typical 13 kW system in Harrisburg costs $38,350 before taxes. After 6% PA sales tax: $40,651. With PPL 1:1 net metering at $0.21/kWh and SRECs, payback is approximately 13.1 years. For $0 down, a PPA or lease passes the Section 48E 30% ITC savings as a lower rate.
Gross Cost (13 kW)
$38,350
~$2.95/W avg
All-In With Tax
$40,651
Including 6% PA tax
SREC Income/yr
$419
15 SRECs @ ~$28/ea
Production
14,950 kWh
1150 kWh/kW/yr
Harrisburg solar costs are in line with central PA averages. PPL's higher electric rate ($0.21/kWh vs Met-Ed's $0.19) actually improves your payback by making each kilowatt-hour of solar production more valuable.
| System Size | Gross Cost | +6% Tax | All-In Cost | SREC/yr | Payback |
|---|---|---|---|---|---|
| 6 kW | $17,700 | +$1,062 | $18,762 | $193 | 13.1 yrs |
| 8 kW | $23,600 | +$1,416 | $25,016 | $258 | 13.1 yrs |
| 10 kW | $29,500 | +$1,770 | $31,270 | $322 | 13.1 yrs |
| 13 kW | $38,350 | +$2,301 | $40,651 | $419 | 13.1 yrs |
| 15 kW | $44,250 | +$2,655 | $46,905 | $483 | 13.1 yrs |
Payback assumes PPL 1:1 net metering at $0.21/kWh, SRECs at ~$28/MWh, central PA irradiance (1150 kWh/kW/yr). No federal tax credit (25D expired). If PPL shifts to LMP credits, payback for new systems installed after the change would be significantly longer.
This is the single most important factor for Harrisburg solar timing in 2026. PPL's proposed shift from 1:1 retail credits to hourly LMP (wholesale) credits would fundamentally change the economics.
Credit rate
$0.21/kWh (full retail)
Credit type
Monthly rolling, annual PTC true-up
PTC rate
$0.13/kWh (annual surplus only)
13 kW annual value
~$3,140
Grandfathering
Expected for systems installed before change
Credit rate
$0.04-$0.06/kWh avg (wholesale)
Credit type
Hourly market rate, fluctuates
Peak hours
Higher credits but still well below retail
13 kW annual value
~$748 (est.)
Reduction vs current
~60-70% less credit value
The Annual Value Difference for a 13 kW System
Under current 1:1 retail credits, a 13 kW system in Harrisburg earns approximately $3,140/year in net metering value. Under the proposed LMP structure, that same system would earn roughly $748/year — a difference of about $2,392/year. Over 25 years, that is a potential loss of $59,800 in cumulative value. Getting grandfathered at 1:1 is worth acting on.
The homeowner solar tax credit (Section 25D) is dead. But the commercial ITC (Section 48/48E) is still available for third-party system owners through July 4, 2026. For Harrisburg homeowners facing both the PPL net metering change and the 48E deadline, acting before mid-2026 captures maximum value from both programs.
Federal tax credit
$0 (25D expired)
Gross cost (13 kW)
$38,350
6% PA sales tax
+$2,301
All-in cost
$40,651
You own the system
Yes
SREC income
$419/yr (you keep 100%)
25-year net savings
$51,978
Payback Period
~13.1 years
Upfront cost
$0
Section 48E ITC
30% claimed by financing company
Your savings vs PPL
20-40% lower per-kWh rate
SREC income
Kept by third party (reflected in lower rate)
Contract term
20-25 years typical
Maintenance
Included — third party handles everything
NM risk
Third party bears regulatory risk
Deadline
Construction by July 4, 2026
Harrisburg advantage: A PPA or lease shifts both the PPL net metering regulatory risk AND the maintenance burden to the financing company. You get a locked-in rate below your current PPL bill with $0 down and no exposure to the LMP proposal.
Dual Deadline: PPL Net Metering + Section 48E (Both ~July 2026)
Harrisburg faces a unique convergence: the PPL LMP tariff proposal and the Section 48E ITC deadline both target approximately July 2026. For maximum value, Harrisburg homeowners should aim to have their system installed and interconnected before both deadlines. This means starting the process no later than April-May 2026 to allow for permitting (2-3 weeks) and interconnection (2-4 weeks).
Pennsylvania SRECs are a meaningful revenue stream that partially offsets the lack of a federal tax credit. Each SREC represents 1 MWh of solar production and trades at $22-$35/MWh in the current PA AEPS market.
Annual SREC Income
$419
15 SRECs at ~$28/ea
15-Year SREC Earnings
$6,285
Active PA AEPS market participation
PRESS Act Upside
5.5%
Proposed solar carve-out (vs 0.5% today)
Your system is registered with PJM-GATS (Generation Attribute Tracking System)
Every 1,000 kWh (1 MWh) of production generates 1 SREC
SRECs are sold on platforms like SRECTrade or Flett Exchange
PA utilities must buy SRECs to meet the 0.5% solar carve-out
SRECs have a 3-year useful life from the vintage year
Cash/loan buyers keep 100% of SREC income
PPA/lease: third party keeps SRECs (reflected in your lower rate)
PRESS Act, if passed, could raise SREC values to $50-$80+/MWh
Understanding your PPL rate structure is critical for accurate solar payback calculations. PPL serves the Harrisburg metro, Lehigh Valley, and most of northeastern PA — the second-largest utility territory in the state.
$0.21/kWh
Average residential rate including supply + delivery. This is the rate you currently receive as a 1:1 net metering credit. Higher than Met-Ed ($0.19), which benefits Harrisburg solar economics.
$0.13/kWh
Price-to-Compare rate. At annual true-up (June), excess credits beyond your usage are paid at this lower supply-only rate. Size your system to minimize annual surplus.
AT RISK
PPL has filed a tariff proposal to shift from 1:1 retail credits to hourly LMP wholesale rates. Expected ~July 2026. Systems installed before the change are expected to be grandfathered.
Pennsylvania is a competitive electricity choice state. Harrisburg homeowners can shop for their supply rate through third-party suppliers while keeping PPL as their delivery provider. This affects your PTC (Price-to-Compare) rate at annual net metering true-up.
Solar impact: If you lock in a lower supply rate through a competitive supplier, your monthly net metering credits remain at the full bundled rate (supply + delivery). However, at the annual true-up, excess generation is paid at your PTC rate, which reflects the default supply rate.
As the state capital, Harrisburg has a unique position in PA's solar landscape. While the city itself does not offer special capital-city solar incentives, the concentration of state government and institutional presence shapes the local solar market.
Large state government workforce creates strong demand for residential solar
Institutional buildings (Capitol complex, state offices) demonstrate solar visibility
Dauphin County has ~1.3% effective property tax rate — solar adds to assessed value
Central PA location gets moderate irradiance (4.0-4.5 peak sun hours)
Strong installer competition from companies serving both Harrisburg and the Lehigh Valley
PA PRESS Act (pending) would raise the solar carve-out from 0.5% to 5.5%
HB 1155 (community solar) signed April 2025 — PUC rules due April 2026
PPL tariff proposal under PA PUC review — decision affects 1.4M+ customers
Harrisburg homeowners are uniquely positioned to engage with state-level solar policy
State employee solar co-ops and group buying programs have emerged in the capital region
Harrisburg's PPL territory gives it a different solar profile than nearby Met-Ed cities like Lancaster and Reading. Higher rates mean better savings per kWh, but the net metering threat adds risk.
| City | Cost/W | Rate | Utility | NM Status | |
|---|---|---|---|---|---|
| Harrisburg | $2.75-$3.15/W | $0.21/kWh | PPL | At Risk | You are here |
| Derry Twp (Hershey) | $2.75-$3.10/W | $0.21/kWh | PPL | At Risk | View |
| Lancaster | $2.70-$3.10/W | $0.19/kWh | Met-Ed | Stable | View |
| Reading | $2.70-$3.10/W | $0.19/kWh | Met-Ed | Stable | View |
| Allentown | $2.75-$3.15/W | $0.21/kWh | PPL | At Risk | View |
Lancaster and Reading are in Met-Ed territory with stable net metering. Allentown and Derry Township (Hershey) share PPL territory with Harrisburg and face the same LMP proposal risk.
The Harrisburg metro spans from downtown row homes near the Capitol to suburban developments in surrounding Dauphin and Cumberland County townships. Solar potential varies significantly by neighborhood.
Urban core, row homes, historic buildings
Dense row housing along State Street and 2nd-6th Streets — systems typically 5-8 kW
Historic district overlay in some blocks may require architectural review for panel placement
Proximity to state government buildings creates shade considerations on some streets
Mix of brick row homes and Victorian-era single-family with varied roof conditions
Capitol complex employees and state workers are a strong demographic for solar interest
Typical System
5-9 kW
Cost Range
$14,750-$26,550
Permitting
2-4 weeks (City, historic review may add time)
Established residential, single-family homes
Larger single-family homes built 1920s-1960s with solid roof structures and 1,200-1,800 sq ft roof areas
Tree canopy around Italian Lake and parks requires careful shade analysis
Established neighborhood with higher property values — solar adds resale value
Many homes have 200-amp electrical service, reducing panel upgrade costs
Bellevue Park homes often have excellent south-facing exposure on hillside lots
Typical System
8-12 kW
Cost Range
$23,600-$35,400
Permitting
2-3 weeks
Suburban, larger lots, newer construction
Larger suburban homes with 1,500-2,200 sq ft roofs ideal for 11-15 kW systems
Township permitting is straightforward and typically faster than city permits
Post-1980 construction often solar-ready with 200-amp panels and composite shingle roofs
Less tree coverage than urban Harrisburg provides optimal year-round sun exposure
Highest solar adoption rates in the Harrisburg metro due to roof size and homeowner demographics
Typical System
11-15 kW
Cost Range
$32,450-$44,250
Permitting
2-3 weeks (Township)
Suburban sprawl, mixed housing
Mix of ranches, split-levels, and colonials built 1960s-2000s — diverse roof angles
Lower Paxton is one of the fastest-growing Harrisburg suburbs with strong solar demand
Swatara Township straddles the PPL/Met-Ed boundary — confirm your utility before signing
Commercial corridors along Jonestown Road and Derry Street have flat-roof commercial solar potential
Newer subdivisions have HOAs — check for any solar panel restrictions (PA law protects solar rights)
Typical System
9-13 kW
Cost Range
$26,550-$38,350
Permitting
2-3 weeks (Township)
Suburban, Cumberland County, diverse housing
Cumberland County communities across the Susquehanna — mix of older boroughs and newer developments
Camp Hill and Mechanicsburg have walkable downtowns with row homes (5-8 kW) and surrounding suburbs (10-14 kW)
Some West Shore addresses are served by PPL, others by Met-Ed or PPL — verify your utility territory
Generally lower property tax rates than Dauphin County, reducing solar property tax impact
Excellent access to multiple solar installers serving the Harrisburg metro from both sides of the river
Typical System
8-14 kW
Cost Range
$23,600-$41,300
Permitting
2-3 weeks
The death of the 25D ITC has fundamentally changed which financing path is optimal in PA. For Harrisburg homeowners facing the PPL net metering threat, PPA/lease options that shift regulatory risk to the financing company are especially compelling.
Best for: Homeowners who can afford upfront cost and want maximum long-term savings
Best for: Homeowners who want ownership benefits without large upfront payment
Best for: Most PA homeowners in 2026 — MORE attractive post-ITC because the financing company claims the 30% Section 48 ITC and passes savings as a lower rate
Best for: Homeowners who want predictable monthly costs with no maintenance responsibility
PA is uniquely disadvantaged in the Northeast for solar tax treatment — no property tax exemption, no sales tax exemption, and no state solar tax credit. Here is the full picture for Harrisburg.
PA SRECs
15 SRECs/yr at $28/SREC. 15-year market. PRESS Act could boost values.
1:1 Net Metering (PPL)
Currently 1:1 retail at $0.21/kWh. AT RISK from LMP proposal (~July 2026). Systems installed before change expected grandfathered.
Section 48E ITC (PPA/Lease)
Third-party owner claims ITC, passes savings as lower rate. Deadline July 4, 2026.
PPL PTC Rate
Annual true-up rate for excess production. Higher than Met-Ed PTC ($0.119) — slightly better for oversized systems.
Federal 25D ITC
$0 for homeowners since Dec 31, 2025. Cash/loan purchases get no federal credit.
6% PA Sales Tax
No solar equipment exemption in PA. Adds ~$2,300 to a 13 kW system.
Property Tax Increase
No PA exemption. Dauphin County ~1.3% effective rate. Solar adds to assessed value.
Customize your system size, financing type, and utility to see personalized payback and savings estimates for your Harrisburg home. Select PPL to see accurate numbers for the capital region.
Estimate your solar return on investment with SREC income, net metering credits, and PA-specific costs.
Federal Residential Solar Tax Credit (Section 25D) Expired
Homeowners who purchase solar with cash or a loan receive $0 in federal tax credits. Section 25D expired December 31, 2025.
Greater Philadelphia / Southeast PA
Electric Rate
$0.18/kWh
Net Metering
1:1 retail credit
SREC Value
~$28/SREC
Interconnection
4-8 weeks
~12 SRECs/yr at ~$28/SREC
Payback Period
12.7
years
25-Year Savings
$48,511
total
Monthly Benefit
$208
per month
Estimates based on average 2026 PA solar pricing at $3.00/W, SREC spot ~$28/SREC, 1:1 retail net metering, 6% PA sales tax (applies to solar), NO PA state rebate, NO property tax exemption. Section 25D residential ITC expired Dec 31, 2025 -- $0 federal tax credit for cash/loan purchases.
Solar panels in Harrisburg cost $2.75-$3.15 per watt installed in 2026, averaging about $2.95/W. For a typical 13 kW system, the total cost is $38,350 before the 6% PA sales tax ($2,301), for an all-in cost of about $40,651. There is no federal tax credit for homeowners (25D expired Dec 31, 2025). With a $0-down PPA or lease, the third-party financing company can still claim the 30% Section 48E commercial ITC through July 4, 2026.
Yes, Harrisburg is served by PPL Electric Utilities. This is critically important in 2026 because PPL has proposed tariff changes (~July 2026) that would shift net metering credits from 1:1 full retail rate to hourly LMP (Locational Marginal Pricing) — wholesale rates that are dramatically lower. Systems installed and interconnected before the change may be grandfathered under the current 1:1 rate. This creates genuine urgency for Harrisburg homeowners considering solar.
With PPL 1:1 net metering at $0.21/kWh, a 13 kW cash-purchased system has approximately a 13.1-year payback period. PPL's higher rate ($0.21 vs Met-Ed's $0.19) actually helps Harrisburg homeowners by making each kWh of solar production more valuable. However, if PPL shifts to LMP-based credits, payback for new systems could extend significantly. SREC income of $419/yr further accelerates the payback.
PPL Electric Utilities has filed a tariff proposal with the PA PUC to replace 1:1 retail net metering credits with hourly Locational Marginal Price (LMP) credits. LMP rates are wholesale market prices that fluctuate hourly and average roughly $0.04-$0.06/kWh — far below the $0.21/kWh retail rate. The proposal could take effect around July 2026. Systems installed and interconnected before the change are expected to be grandfathered under the current 1:1 retail rate for the life of the system. This is the single biggest factor for Harrisburg solar timing.
PA Solar Renewable Energy Certificates (SRECs) are tradeable credits earned for every megawatt-hour (MWh) your system produces. In the current PA AEPS market, SRECs trade at $22-$35/MWh (average ~$28). A 13 kW system in Harrisburg generates about 15 SRECs per year, earning roughly $419 annually. Over 15 years, that is approximately $6285 in additional income. SRECs have a 3-year useful life from vintage year and are registered through PJM-GATS.
Yes, but only indirectly. The homeowner 25D residential solar tax credit expired Dec 31, 2025 — homeowners who buy with cash or a loan get $0 federal tax credit. However, if you go with a $0-down solar PPA or lease, the third-party financing company can still claim the 30% Section 48/48E commercial ITC on projects beginning construction before July 4, 2026. Those savings are passed to you as a lower per-kWh electricity rate, typically 20-40% below your current PPL bill.
Harrisburg does not have city-specific solar rebates or incentives beyond the statewide programs. Being the state capital does not confer additional solar benefits. However, Harrisburg homeowners can access PA SRECs ($22-$35/MWh), PPL 1:1 net metering (while it lasts), and Section 48E via PPA/lease. The Dauphin County property tax rate (~1.3% effective) means solar adds roughly $450-$500/yr in property taxes since PA has no solar property tax exemption.
There is a legitimate case for urgency. If PPL shifts to LMP-based net metering around July 2026, systems grandfathered under 1:1 retail credits could be worth $1,000-$1,500 more per year than systems installed after the change. Combined with the Section 48E PPA/lease deadline (also July 4, 2026), Harrisburg homeowners have a narrow window to lock in both maximum net metering value and third-party ITC benefits. That said, solar still works after both deadlines — just with longer payback.
Harrisburg (PPL, $0.21/kWh) has better per-kWh savings than Lancaster or Reading (both Met-Ed, $0.19/kWh), which shortens payback. However, Harrisburg faces the PPL net metering threat that Lancaster and Reading do not. Installation costs are similar ($2.75-$3.15/W Harrisburg vs $2.70-$3.10/W Lancaster/Reading). All three cities share central PA irradiance (~1,150 kWh/kW/yr). Bottom line: Harrisburg has better current economics but more regulatory risk.
In 2026, PPA and lease options are significantly more attractive in Harrisburg than before the 25D expiration. Since homeowners get $0 federal tax credit on cash or loan purchases, but the third-party PPA/lease company can still claim the 30% Section 48 commercial ITC (through July 4, 2026), those savings are passed through as a lower per-kWh rate. For Harrisburg homeowners, a PPA also shifts the net metering regulatory risk to the financing company rather than you bearing it directly.
With PPL's net metering change and the Section 48E ITC deadline both targeting ~July 2026, Harrisburg homeowners have a narrow window to maximize solar value. Get your free estimate and lock in 1:1 retail credits while they last.
Statewide costs and payback analysis.
Read moreHow third-party ITC works for homeowners.
Read morePPL LMP proposal and utility comparison.
Read moreSREC market, PJM-GATS, and PRESS Act.
Read moreNearby PPL territory comparison.
Read moreMet-Ed city with stable NM.
Read moreFellow PPL city comparison.
Read moreFinancing comparison for PA.
Read moreWhy PA solar still works in 2026.
Read morePricing: EnergySage Solar Marketplace (January 2026), NuWatt Energy PA installations.
Utility rates: PPL Electric Utilities residential tariff, effective January 2026.
SREC data: SRECTrade, Flett Exchange, PJM-GATS (February 2026).
PPL net metering proposal: PA PUC docket, PPL Electric Utilities tariff filing (2025-2026).
Federal tax credit: OBBBA signed July 4, 2025. Section 25D expired Dec 31, 2025. Section 48/48E active through July 4, 2026.
Irradiance: NREL PVWatts for Harrisburg, PA (40.3N, -76.9W).