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The "City of Presidents" with ~101,000 residents, South Shore's gateway to Boston, and a mix of urban density and coastal neighborhoods. Eversource territory at $0.2836/kWh. SMART 3.0, ConnectedSolutions, and Section 48E lease/PPA options make Quincy a strong solar market -- even without the federal tax credit.

Eversource territory • SMART 3.0 • ConnectedSolutions • Section 48E through July 4, 2026
2026 Reality: The 30% federal tax credit (Section 25D) expired for homeowners December 31, 2025. All costs reflect $0 federal credit. However, Section 48E allows lease/PPA providers to claim a 30%+ commercial ITC through July 4, 2026. See Section 48E details
A 10 kW solar system in Quincy costs $30,500-$34,000 in 2026. In Eversource territory at $0.2836/kWh, with SMART income of ~$360/yr and full retail net metering, the investment pays for itself in 7.5-9 years and generates ~$105,000 in savings over 25 years. Section 48E lease/PPA offers a $0-down path through July 4, 2026.
Cost Range
$3.05-$3.4/W
Fully installed
Avg System
10 kW
Quincy average
Payback
7.5-9 yrs
Cash purchase
25-Year Savings
~$105K
Estimated total value
Quincy is the eighth-largest city in Massachusetts with ~101,000 residents. Known as the City of Presidents (birthplace of John Adams and John Quincy Adams), it serves as the gateway between Boston and the South Shore. Its diverse neighborhoods range from dense urban areas to coastal communities along Quincy Bay.
Population
~101,000
Median Home Value
~$530,000
Primary Utility
Eversource
Electric Rate
$0.2836/kWh
Typical System Size
8-13 kW
Solar Irradiance
4.2 kWh/m²/day
Costs for different system sizes in Quincy at $3.05-3.40/W. Quincy homes range from condos (6-8 kW) to larger single-family homes in West Quincy (13-16 kW).
| System Size | Low Cost | High Cost | SMART 3.0 | Best For |
|---|---|---|---|---|
| 6 kW | $18,300 | $20,400 | ~$216/yr | Condo / small apartment |
| 8 kW | $24,400 | $27,200 | ~$288/yr | Mid-size cape or ranch |
| 10 kW | $30,500 | $34,000 | ~$360/yr | Typical Quincy single-family |
| 13 kW | $39,650 | $44,200 | ~$468/yr | Large home / EV + battery |
| 16 kW | $48,800 | $54,400 | ~$576/yr | High usage / multi-zone HVAC |
Prices include equipment, labor, permits, and grid interconnection. No federal tax credit included (expired). $1,000 MA state tax credit not deducted.
Quincy's neighborhoods range from dense urban areas near the T to coastal communities along the harbor. Here is how solar conditions vary across the city.
Home Types
Ranches, capes, colonials
Avg System
9-12 kW
Residential neighborhoods with good lot sizes and south-facing roof potential. Many post-war homes with simple roof lines that are ideal for solar. Strong adoption rates.
Home Types
Colonials, Victorians, bungalows
Avg System
9-11 kW
Established residential area near Wollaston Beach. Mix of older and renovated homes. Some mature tree canopy but generally good solar access. Coastal proximity is not an issue for modern panels.
Home Types
Multi-family, condos, triple-deckers
Avg System
7-9 kW
Denser urban areas with significant multi-family housing and new condo development. Triple-deckers can install solar with shared benefits. Some buildings better suited for community solar.
Home Types
Ranches, capes, waterfront condos
Avg System
8-11 kW
Coastal neighborhood with excellent sun exposure due to fewer tall buildings and trees. Salt air is not a concern for modern panel frames and racking. Waterfront homes benefit from unobstructed solar access.
Home Types
Capes, ranches, cottages
Avg System
8-10 kW
Peninsula neighborhood with wide-open sky exposure and minimal shading. Flood zone considerations for ground-mount but rooftop solar is straightforward. Strong community interest in solar.
Quincy has significant coastline along Quincy Bay and the Boston Harbor. Coastal neighborhoods like Squantum, Marina Bay, Houghs Neck, and Wollaston Beach are fully suitable for solar. Modern panels use anodized aluminum frames and stainless steel hardware designed for marine environments. Most panel warranties (25 years) cover coastal installations without restrictions.
Salt spray
Not a concern for modern panels
Wind loads
Engineered racking handles coastal wind
Sun exposure
Often better -- fewer tall trees near coast
Flood zones
Rooftop solar unaffected; ground-mount requires review
The homeowner tax credit is gone -- but there is still a path to federal savings. Section 48E lets third-party solar companies claim a 30%+ commercial investment tax credit on systems they install and lease to you. That savings gets passed to you as a lower monthly lease or PPA rate. The catch? Construction must begin before July 4, 2026.
You sign a solar lease or PPA
A third-party finance company installs solar on your Quincy roof at no upfront cost.
Finance company claims 30%+ ITC
They claim the Section 48/48E investment tax credit (30% base + potential bonus adders for domestic content, energy community, or low-income).
Savings passed to you
Your monthly lease/PPA rate is set below Eversource's $0.2836/kWh. Typical PPA rates: $0.14-0.18/kWh.
Immediate savings, month one
You save ~$104/mo compared to your current Eversource bill. No waiting for payback.
Metric
Cash Buy
48E Lease/PPA
Upfront Cost
$30,500-$34,000
$0
Monthly Cost
$0
~$80-120/mo
Year 1 Savings
~$3,763
~$1,200
Payback
7.5-9 years
Immediate
25-Year Value
~$105,000
~$35-50K
System Ownership
You
Finance Co.
SMART Income
Yours ($360/yr)
Finance Co.
Bottom line: Cash purchase delivers the best long-term ROI. Section 48E lease/PPA is best for Quincy homeowners who cannot or prefer not to pay $30,500-$34,000 upfront and want immediate savings with $0 down.
Quincy's Building Department handles solar permits. The process typically takes 2-4 weeks. Some coastal neighborhoods may require additional review for flood zone compliance.
Installer evaluates roof condition, shading, orientation, and structure. Coastal properties assessed for wind load requirements.
Application to Quincy Building Department with electrical and structural plans. Flood zone properties may need additional documentation.
Typical installation 1-3 days. Electrical and building inspection by the City of Quincy.
Eversource approves grid connection. 2-4 weeks. Net metering activated once approved.
Section 48E timeline note: If you want a lease/PPA with the commercial ITC, work backward from July 4, 2026 -- sign your agreement by May 2026 at the latest. NuWatt handles all permitting, utility coordination, and inspections.
The federal residential tax credit is gone, but Massachusetts offers one of the strongest solar incentive packages in the country. Here are the 7 programs Quincy homeowners can stack.
$0.03/kWh for all electricity produced for 20 years. A 10 kW system generates ~$360/yr in SMART income.
~$360/yr
~$6,840 over 20 years
1:1 credit at full retail rate of $0.2836/kWh. Credits roll over monthly and true up in April.
~$3,403/yr
Annual electricity savings (10 kW)
Eversource demand response. Earn $275/kW summer + $50/kW winter for discharging your battery during peak events.
$3,250/yr
Typical 10 kW battery
Finance company claims 30%+ commercial ITC and passes savings as lower lease/PPA rate. $0 upfront.
10-15% lower rate
Deadline: July 4, 2026
15% of system cost, capped at $1,000. Claimed on your MA state tax return.
$1,000
One-time credit (cash/loan only)
Solar systems are exempt from the 6.25% MA sales tax. Immediate savings at purchase.
~$2,016
Savings on typical system
Solar-added value is exempt from property tax for 20 years. Quincy's rate: 1.07%.
~$345/yr
20-year exemption (~$6,900 total)
Section 25D (the 30% residential solar tax credit) expired December 31, 2025 under the OBBBA. Quincy homeowners buying cash or loan receive $0 in federal credit. However, third-party system owners (PPA/lease) can still claim the commercial Section 48/48E ITC through July 4, 2026 -- which translates to lower PPA/lease rates for you.
Model your exact costs, savings, and payback for any system size. Includes SMART 3.0, net metering, ConnectedSolutions, state tax benefits, and Section 48E lease/PPA comparisons. Default settings are pre-loaded for Eversource territory.
Estimate your solar return on investment with SMART income, net metering credits, ConnectedSolutions, and MA tax benefits.
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.
Eastern MA (Boston, South Shore, Cape Cod, MetroWest, Western MA)
Electric Rate
$0.28/kWh
Net Metering
1:1 retail credit (Class I ≤25 kW)
SMART 3.0 Rate
$0.03/kWh
Interconnection
2-4 weeks typical
20-year exemption — solar adds $0 to your property tax
Payback Period
7
years
25-Year Savings
$114,687
total
Monthly Benefit
$378
per month
Estimates based on average 2026 MA solar pricing, SMART 3.0 $0.03/kWh residential flat rate, 1:1 retail net metering, 6.25% sales tax exemption, 20-year property tax exemption, and 15% state tax credit (max $1,000). Section 25D residential ITC expired Dec 31, 2025 — $0 federal tax credit for cash/loan purchases.
Four ways to pay for solar in Quincy. Lease and PPA options benefit from the Section 48E commercial ITC through July 4, 2026.
Upfront
~$30,500-$34,000
Monthly
$0
25-yr Savings
~$105K
Ownership
You own it
Best long-term ROI. 7.5-9 year payback. Full SMART income + net metering yours.
Upfront
$0 down
Monthly
~$210-290/mo (5.5-8% APR)
25-yr Savings
~$65-85K
Ownership
You own it
10-25 year terms through local lenders. SMART income + net metering offset monthly payments.
Upfront
$0
Monthly
~$80-120/mo
25-yr Savings
~$35-50K
Ownership
Third party owns
Finance company claims Section 48E ITC (30%+). You lease at a fixed rate below Eversource. Deadline: begin construction by July 4, 2026.
Upfront
$0
Monthly
Fixed ~$0.14-0.18/kWh
25-yr Savings
~$30-45K
Ownership
Third party owns
Third-party owner claims Section 48E ITC. You buy power at a discount to Eversource rates. Immediate savings, no maintenance.
How Quincy solar costs compare to South Shore and Greater Boston neighbors.
| City/Town | Cost/W | Avg System | Utility | Notes |
|---|---|---|---|---|
| Quincy | $3.05-3.40 | 10 kW | Eversource | South Shore gateway, coastal areas, diverse housing |
| Braintree | $3.00-3.35 | 11.5 kW | BELD (Muni) | Municipal electric, NO SMART/ConnectedSolutions |
| Milton | $3.10-3.45 | 12 kW | Eversource | Affluent suburb, larger homes |
| Weymouth | $3.00-3.35 | 10 kW | Eversource | Similar South Shore market |
| Boston (Dorchester) | $3.10-3.50 | 8 kW | Eversource | Dense, smaller systems, higher costs |
| Hingham | $3.10-3.45 | 12 kW | Hingham Muni | Municipal electric, separate net metering rules |
Solar panels in Quincy cost $3.05-3.40 per watt installed in 2026. A typical 10 kW system costs $30,500-$34,000 before MA state incentives. The federal Section 25D residential tax credit expired December 31, 2025 -- homeowners receive $0 in federal credit. Massachusetts state incentives (SMART 3.0, net metering, state tax credit, and tax exemptions) still make solar profitable in Quincy.
Section 48E is the commercial/third-party solar investment tax credit that is still available for projects beginning construction before July 4, 2026. When you lease solar panels or sign a PPA in Quincy, the financing company (not you) claims the 30%+ ITC and passes the savings to you as a lower monthly rate. This means you can get solar with $0 upfront and a rate lower than your Eversource bill ($0.2836/kWh). The finance company claims the credit -- you benefit from reduced rates.
Section 48E allows third-party solar companies to claim a 30% (or higher) investment tax credit on solar systems they own and lease to you. This credit applies to projects that begin construction before July 4, 2026. After that date, this option disappears. If you want a lease or PPA to avoid the $30,500-$34,000 upfront cost of solar in Quincy, you need to have your agreement signed and construction started before that deadline. Working backward, aim to sign by May 2026 at the latest.
Modern solar panels and racking systems are designed to withstand coastal conditions. Quincy neighborhoods like Squantum, Marina Bay, Houghs Neck, and Wollaston Beach are fully suitable for solar. Panel frames are anodized aluminum, and mounting hardware is stainless steel or galvanized. Most manufacturers offer 25-year warranties that cover coastal installations. In fact, coastal areas often have less tree canopy and more unobstructed sun exposure.
SMART 3.0 (Solar Massachusetts Renewable Target) pays solar system owners $0.03/kWh for all electricity produced, locked in for 20 years. A 10 kW system in Quincy generates approximately $360/year in SMART income, totaling roughly $6,840 over the program duration. Low-income households qualify for $0.06/kWh (double rate). Battery storage adds $0.04/kWh on top.
Yes. Quincy has a 7.5-9 year payback even without the federal 25D credit. The high Eversource rate ($0.2836/kWh), SMART 3.0 income ($360/yr), 1:1 net metering, ConnectedSolutions battery revenue ($3,250/yr with battery), $1,000 state tax credit, sales tax exemption, and 20-year property tax exemption still make solar a strong investment. Over 25 years, a typical 10 kW system saves approximately $105,000. For $0-down options, Section 48E lease/PPA provides immediate savings through July 4, 2026.
Yes. Quincy has substantial multi-family and condo housing, especially in Quincy Center and North Quincy. Condo associations can vote to install solar on shared roof space, with costs and benefits split among unit owners. For triple-deckers (common in Quincy), the building owner can install solar and allocate credits. Section 48E lease/PPA works well for condo associations -- no upfront cost and the finance company handles everything. For buildings where rooftop solar is not feasible, community solar is an excellent alternative with 10-20% bill savings.
Adding a battery in Quincy is increasingly popular due to Eversource ConnectedSolutions. A 10 kW battery can earn $275/kW summer + $50/kW winter through demand response -- roughly $3,250/year. Plus you get backup power during nor easters and coastal storms. Batteries also qualify for the SMART 3.0 battery adder ($0.04/kWh on top of the $0.03/kWh base). The combined revenue significantly shortens payback on the battery investment.
Solar in Quincy has a payback period of approximately 7.5-9 years for a cash purchase. This is driven by Eversource high retail rates ($0.2836/kWh), SMART 3.0 incentives ($0.03/kWh for 20 years), full retail net metering, and the Massachusetts state tax credit ($1,000). Over 25 years, a typical 10 kW system saves approximately $105,000. With a Section 48E lease/PPA, savings start from month one with no upfront cost -- though total long-term savings are lower than a cash purchase.
We will assess your specific roof, neighborhood, coastal factors, and Eversource rate to show you exactly what solar costs and saves for your Quincy home -- including SMART 3.0, ConnectedSolutions, and Section 48E options.
Section 48E lease/PPA deadline: Construction must begin by July 4, 2026. Start now to keep this option open.
Complete guide to solar in Massachusetts.
Read moreStatewide solar costs and city-by-city breakdown.
Read more DeadlineHow to get federal-level savings through a lease or PPA. Deadline: July 4, 2026.
Read more$0.03/kWh for 20 years. How to enroll and earn.
Read moreEarn $225-$1,500/yr per battery.
Read moreCompare financing options side by side.
Read moreMunicipal electric neighbor. Different incentives.
Read moreCity of Boston solar guide. $3.10-3.50/W.
Read moreAffluent South Shore neighbor. $3.10-3.45/W.
Read more1:1 credits, true-up, and DPU updates.
Read moreCompare utility rates, net metering, and solar economics.
Read moreWhy MA solar still works after 25D expired.
Read morePricing: EnergySage Solar Marketplace (January 2026), NuWatt Energy South Shore installations.
Utility rates: Eversource residential rate schedule RS, effective February 2026.
Section 48E: IRS Notice 2024-48, OBBBA (signed July 4, 2025) -- projects beginning construction before July 4, 2026.
SMART 3.0: MassDOER / MassCEC, SMART program guidelines PY2026.
ConnectedSolutions: Eversource demand response program rates, 2026 season.
Tax exemptions: MA Department of Revenue, Quincy Assessor data.