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We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuotePartner with NuWatt to integrate solar into your new home builds. Meet Stretch Code requirements, offer buyers $0-down financing through Propel, and differentiate your homes in the most competitive housing market in New England.
$0.28+/kWh
Avg Electric Rate
~18,000
New Homes Permitted (2025)
+4.1%
Solar Value Added
20 Years
Property Tax Exempt
Installing solar during new construction saves builders $2,000-$4,300 per home compared to retrofit. Pre-wiring costs just $300-$500 during rough-in. Massachusetts offers the strongest incentive stack in New England: SMART 3.0 pays $0.03/kWh for 20 years, net metering provides 1:1 retail credits, and property tax is 100% exempt for 20 years. The federal residential tax credit (25D) is gone, but Section 48 TPO lets financing companies claim 30%+ ITC on projects started before July 4, 2026 — keeping buyer costs low. Over 300 communities have adopted the Stretch Code, making solar-ready construction increasingly mandatory.
Solar is no longer a luxury upgrade. With the Stretch Code expanding, electric rates above $0.28/kWh, and buyers increasingly energy-conscious, solar is a competitive necessity for MA builders.
Over 300 MA communities have adopted the Stretch Energy Code, and the new Specialized Opt-in Code requires solar-ready roofs. Pre-wiring during construction avoids costly retrofits and keeps projects on schedule.
Homes with solar sell for 4.1% more on average (Zillow). In Greater Boston, where the median home price exceeds $700,000, that translates to $28,000-$35,000 in added value.
Solar-included homes sell 20% faster. In competitive MA suburbs like Natick, Needham, Lexington, and Wellesley, solar is the upgrade that moves inventory and attracts energy-conscious buyers.
NuWatt Propel financing means buyers get solar at $0 down with no credit score requirement. Removes the biggest objection to solar upgrades in a state where home prices already stretch budgets.
From initial consultation to buyer move-in, NuWatt handles every aspect of solar integration. Your team focuses on building homes. We focus on powering them.
We review your development plans, lot orientations, and roof designs to create a solar integration strategy that works for your build timeline and meets Stretch Code requirements.
Our team installs conduit, junction boxes, and panel-ready wiring during the rough-in phase. Cost: ~$300-$500 per home vs $2,000+ for retrofit.
We handle all engineering, structural calculations, utility interconnection applications (Eversource or National Grid), and permitting. Zero burden on your team.
Solar goes on the roof during the final construction phase or shortly after close. Buyers move into a solar-powered home from day one with SMART 3.0 incentives already locked in.
Massachusetts offers one of the strongest solar incentive packages in the country. Here is what your buyers get when you partner with NuWatt for new construction solar.
$0.03/kWh for 20 years on residential systems under 25 kW. An 8 kW system earns roughly $5,760 over the program term — on top of electricity savings.
Low-income adder: $0.06/kWh (double the standard rate).
Massachusetts provides full 1:1 retail credit for net metering. Excess solar production is credited at the full retail rate — $0.28-$0.32/kWh depending on utility territory.
Credits roll over month-to-month indefinitely.
100% property tax exemption for 20 years. A solar system that adds $20,000 to home value creates $0 in additional property tax for two decades.
Major selling point for buyers in high-tax MA towns.
Solar equipment and installation are exempt from Massachusetts 6.25% sales tax. On a $24,000 system, that is $1,500 in savings for the buyer.
Applies to panels, inverters, racking, and labor.
Battery storage incentive: Eversource $275/kW summer + $50/kW winter, National Grid $225/kW + $50/kW. Earns $1,000-$1,500/year per battery.
Stacks with SMART 3.0 and net metering.
MA electricity rates average $0.28-$0.32/kWh — among the highest in the country. Solar locks in energy costs for 25+ years, protecting buyers from rate volatility.
Rates rose 22% from 2022-2025 and are projected to keep climbing.
The federal residential solar tax credit (Section 25D) expired on December 31, 2025. Homebuyers who purchase solar with cash or a loan get $0 in federal credits. This changed the economics of builder solar programs completely.
However, Section 48/48E is still available for projects that begin construction before July 4, 2026. Here is how it works for builder programs:
Third-party financing company (not the builder, not the installer) owns the solar system and claims the 30%+ ITC.
Builder carries zero cost — the financing company funds the system. Builder just provides access and pre-wiring.
Buyer benefits from lower pricing because the financing company passes the tax credit savings through as reduced monthly payments.
FEOC compliance required — panels must meet Foreign Entity of Concern rules. NuWatt uses Silfab 440W (manufactured in Toronto, Canada).
The 30% base ITC can stack with additional bonuses: +10% for domestic content, +10% for energy communities, and +10-20% for low-income projects — up to 70% total. For builder programs in qualifying Massachusetts census tracts (e.g., parts of Springfield, Worcester, New Bedford), this makes solar nearly free for the financing company, which translates to the lowest possible buyer pricing.
Typical 8 kW New Home System
$24,000
@ $3.00/W installed (MA new construction pricing)
Section 48 ITC (30% base)
-$7,200
Claimed by financing company
Domestic Content Bonus (+10%)
-$2,400
Silfab FEOC-compliant
Net Cost to Financing Co.
$14,400
Passed through as lower buyer payments
SMART 3.0 (20 years)
+$5,760
$0.03/kWh x 9,600 kWh/yr x 20 yrs
Builder Cost
$0
Builder provides access + pre-wire only
Since the residential tax credit expired, the economics of builder solar changed dramatically. Here is a side-by-side comparison of the two models available in 2026.
| Feature | Builder-Installed (Cash/Loan) | NuWatt TPO (Section 48) |
|---|---|---|
| Federal Tax Credit | $0 (25D expired Dec 2025) | 30%+ via Section 48/48E |
| Who Claims the Credit | N/A — no credit available | Third-party financing company |
| Cost to Builder | Builder pays for system | $0 — financing company funds it |
| Cost to Buyer | Full price added to mortgage | $0 down, low monthly payments |
| FEOC Requirement | Not applicable | Required — Silfab 440W qualifies |
| SMART 3.0 Incentive | $0.03/kWh for 20 years | $0.03/kWh for 20 years |
| Net Metering | 1:1 retail credit | 1:1 retail credit |
| Deadline | None — but no ITC benefit | Construction before July 4, 2026 |
Bottom line: In the post-25D world, NuWatt TPO is the only way to preserve federal tax credit benefits for your buyers. Builder-installed solar adds cost to the home with no federal offset, while TPO financing shifts the economics entirely.
Propel removes the biggest barrier to solar adoption in new homes: the upfront cost. Your buyers get solar from day one with no money down and no credit score requirement.
No upfront cost for the buyer. Solar is included in their new home experience without adding to their down payment burden. Monthly payments start after move-in.
Propel does not require a minimum credit score. This opens solar to a broader pool of buyers — especially first-time homeowners stretching to afford Massachusetts home prices.
Propel requires Silfab 440W panels (manufactured in Toronto, Canada). These meet all Foreign Entity of Concern requirements, ensuring Section 48 eligibility for the financing company.
Builder pre-wires homes during construction phase
Buyer selects Propel financing during purchase process
NuWatt installs Silfab 440W system before or at closing
Financing company claims Section 48 ITC on the system
Buyer pays lower monthly rate — typically less than their $0.28+/kWh electricity bill without solar
Installing solar during construction is dramatically cheaper than retrofitting after the home is complete. Pre-wiring alone saves $1,500-$3,800 by avoiding post-construction electrical work.
| Item | New Construction | Retrofit | Savings |
|---|---|---|---|
| Roof Penetrations | Integrated during build | Requires drilling & flashing | $300-$600 |
| Electrical Conduit | Run during rough-in | Surface-mounted or trenched | $400-$800 |
| Panel Upgrade | Sized correctly from start | Often needs 200A upgrade | $1,200-$2,500 |
| Attic Access | Open ceiling, easy routing | Work around insulation & HVAC | $200-$400 |
| Permit Timeline | Bundled with building permit | Separate permit, 2-6 weeks | 2-4 weeks faster |
| Total Savings | $2,100-$4,300 |
Even if a buyer does not want solar at closing, pre-wiring during construction is the smartest $300-$500 a builder can spend. Here is why:
Stretch Code Compliance
Over 300 MA communities have adopted the Stretch Code. The Specialized Opt-in Code requires solar-ready design. Pre-wiring ensures you meet any code version.
Avoid Costly Retrofit
Retrofit wiring costs $2,000-$4,300. Pre-wiring costs $300-$500. That is an 85% savings for a 30-minute addition during rough-in.
Future-Proof the Home
Massachusetts electricity rates rose 22% between 2022 and 2025. With rates above $0.28/kWh and climbing, every homeowner will consider solar eventually. Pre-wired homes are ready when they are.
Marketing Advantage
“Solar-Ready” is a feature buyers search for in MA. It signals forward-thinking construction and energy consciousness — especially in green-minded suburbs like Newton, Lexington, Concord, and Wellesley.
Dedicated Conduit Run
3/4" or 1" conduit from attic to electrical panel location
Junction Box at Roof
Weatherproof junction box near optimal panel mounting area
Panel Space Reserved
Two 20A breaker spaces in main panel for future solar connection
Structural Documentation
Roof truss specs and load ratings documented for future installer
South-Facing Roof Optimization
Roof pitch and orientation documented for maximum solar production
Total pre-wire cost: $300-$500 per home during rough-in. Compare to $2,000-$4,300 for post-construction retrofit wiring.
Massachusetts combines the highest electricity rates in the continental US with the strongest state-level incentives. This makes builder solar programs more economically compelling here than in almost any other state.
New construction is surging in MA suburbs: Natick, Needham, Lexington, Wellesley, Newton, Concord, and towns along the Route 2 and I-495 corridors. These are exactly the communities where buyers demand energy-efficient features.
Massachusetts leads the nation in green building adoption. Buyers in this market actively seek energy-efficient homes. Solar is not a nice-to-have — it is expected in new construction, especially in communities that adopted the Stretch Code.
Over 300 municipalities have adopted the Stretch Energy Code, and many are moving to the Specialized Opt-in Code that requires solar-ready roof design. Pre-wiring during construction keeps you ahead of tightening requirements.
With the median home price above $700,000, a 4.1% solar value premium translates to $28,000-$35,000 in added home value. Solar is the upgrade that delivers the highest ROI for both builder and buyer.
Natick
$0.28/kWh · Eversource territory
Needham
$0.28/kWh · Eversource territory
Lexington
$0.28/kWh · Eversource, Stretch Code
Wellesley
$0.28/kWh · Eversource, Municipal Light
Newton
$0.28/kWh · Eversource, Stretch Code
Concord
$0.26/kWh · Municipal Light Plant
Brookline
$0.28/kWh · Eversource, Opt-in Code
Cambridge
$0.28/kWh · Eversource territory
Worcester
$0.32/kWh · National Grid territory
National solar companies treat builders as lead sources. NuWatt treats builders as partners. Here is how the experience differs.
| Feature | NuWatt Energy | National Companies |
|---|---|---|
| Equipment Choice | Silfab 440W (FEOC), Hyundai 440W, REC 460W — you choose | Locked to one brand (often non-FEOC) |
| Builder Relationship | Dedicated project manager, direct communication | Call center, ticket-based support |
| Installation Quality | In-house crews, local inspections | Subcontracted, variable quality |
| Buyer Financing | Cash, loan, or Propel ($0 down, no credit check) | Typically lease/PPA only |
| FEOC Compliance | Silfab (Toronto factory) meets FEOC deadline | May use non-FEOC panels — buyer loses TPO benefit |
| Post-Sale Support | Local New England team, same-day response | 1-800 number, weeks for service |
| Warranty Service | 25-year panel + 10-year workmanship, local claims | 25-year panel, warranty claims routed through HQ |
When a national solar company works with a builder, the builder is a lead channel. The company collects buyer info, sends a salesperson, and the builder has no control over the customer experience. With NuWatt, the builder gets a dedicated project manager who coordinates with the construction schedule, communicates directly with the build team, and ensures the solar installation is seamless. If something needs adjustment, we are on-site the same day — because we are based in New England, not a national call center.
Builder programs unlock pricing that individual homeowners cannot access. Higher volume means lower per-home costs, faster installation schedules, and streamlined permitting.
Starter Program
5-15 Homes
Per development or annual commitment
Growth Program
15-50 Homes
Per development or annual commitment
Enterprise Program
50+ Homes
Per development or annual commitment
Pricing is custom for each builder partnership. Contact us for a detailed proposal.
Some national solar companies are still marketing the “30% federal tax credit” to builders and buyers. This is misleading. Here is the truth:
Expired December 31, 2025. Homeowners who purchase solar with cash or a loan receive $0 in federal tax credits.
Any company telling buyers they can claim 30% on a cash purchase is either uninformed or being dishonest.
Still available for projects beginning construction before July 4, 2026. The third-party financing company (not the builder, not the installer) claims the ITC.
This is how Propel and other TPO programs can still offer competitive pricing to buyers — the financing company captures the tax benefit.
Common questions from Massachusetts home builders exploring solar partnerships.
We start with a consultation to review your development plans, lot layouts, and roof orientations. From there, we create a solar integration plan that fits your build timeline and meets Massachusetts Stretch Code requirements. Our team handles pre-wiring during rough-in, system design, permitting, utility interconnection (Eversource or National Grid), and final installation. You get a single point of contact throughout.
Solar pre-wiring during new construction typically costs $300-$500 per home. This includes running conduit from the attic to the electrical panel location and installing junction boxes. Compare that to $2,000-$4,300 for retrofit wiring after the home is complete. Pre-wiring is the single best ROI decision a builder can make for solar readiness.
Under Section 48/48E, a third-party financing company (not the builder, not the installer) owns the solar system and claims the 30%+ Investment Tax Credit. This means the builder carries zero system cost, and the tax benefit flows through as lower pricing for the homebuyer. Projects must begin construction before July 4, 2026 to qualify.
The Stretch Energy Code itself does not mandate solar panels, but over 300 communities have adopted it, and the newer Specialized Opt-in Code (effective 2024) requires solar-ready roof design in many municipalities. Towns like Newton, Brookline, Lexington, and Concord have adopted the most aggressive provisions. Pre-wiring during construction ensures compliance regardless of which code version applies.
SMART (Solar Massachusetts Renewable Target) 3.0 pays residential solar systems $0.03/kWh for 20 years on top of net metering credits. A typical 8 kW system generating 9,600 kWh/year earns roughly $288/year in SMART payments alone. New construction systems qualify automatically as long as they are under 25 kW.
NuWatt Propel is a $0-down solar financing option available in Massachusetts. It does not require a credit score check. The buyer gets solar panels installed on their new home with no upfront cost. Monthly payments are typically lower than what the buyer would pay for electricity without solar. Propel requires FEOC-compliant panels (Silfab 440W).
We offer three panel tiers: Hyundai 440W (entry-level, great value), Silfab 440W (FEOC-compliant, required for Propel financing, made in Toronto), and REC 460W (premium efficiency). For builder programs, we typically recommend Silfab 440W because it qualifies for both Section 48 TPO and Propel financing.
No. The federal residential solar tax credit (Section 25D) expired on December 31, 2025. Homeowners who buy solar with cash or a loan receive $0 in federal credits. However, Section 48/48E still allows third-party system owners to claim 30%+ ITC on projects beginning construction before July 4, 2026, which translates to lower lease/PPA/Propel pricing for buyers.
ConnectedSolutions is a demand response program from Eversource ($275/kW summer + $50/kW winter) and National Grid ($225/kW + $50/kW). Buyers who add battery storage (like Tesla Powerwall 3) to their solar system can earn $1,000-$1,500/year by allowing the utility to briefly draw from the battery during peak demand. This stacks with SMART 3.0 and net metering.
Schedule a builder consultation with NuWatt. We will review your development plans, create a solar integration strategy, and show you the economics — including how Propel and Section 48 TPO eliminate cost for you and your buyers.
MA Solar Panel Cost 2026
Current pricing by city
SMART 3.0 Program Guide
$0.03/kWh for 20 years
MA Solar Incentives 2026
Complete incentive stack
MA Commercial Solar
Commercial project guide
ConnectedSolutions Battery
Earn $1,000+/yr with storage
MA Solar Tax Exemptions
Property & sales tax benefits
Boston Solar Cost
Greater Boston pricing
Cambridge Solar Cost
Cambridge/Somerville area
Worcester Solar Cost
Central MA pricing
Wellesley Solar Cost
MetroWest suburban market
Newton Solar Cost
Newton/Needham area
Lexington Solar Cost
Route 2 corridor