Warehouse & distribution
Does daytime load use the proposed roof generation, and can the roof remain in service for the project term?
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Use the free estimator for a preliminary layout, or share your preferred response method with the commercial team. Final feasibility still requires site, utility, and engineering review.
Plan roof, ground-mount, or carport solar from the property's real load, utility tariff, site constraints, and current program rules. In Massachusetts, NuWatt's in-house engineers design and install the project — a direct EPC, not a lead reseller.
Electricity value
Utility-specific
Rate class + interval load
Installed cost
Quote-specific
No statewide $/W inserted
Production
Site-specific
Geometry + shading model
Program facts
Source-dated
Official sources linked
Documented NuWatt installations
These are selected documented installations, not a count of every project NuWatt has completed. The case study documents the 55 kW ground-mounted solar array at Pleasant Valley Gardens in Methuen, MA.
| Installation | Recorded capacity | Engineering context | Evidence basis |
|---|---|---|---|
| Pleasant Valley Gardens Methuen, MA · 2012 | 55 kW utility interconnection record | The utility-authorized 55 kW design was commissioned as a ground-mounted array with multiple Fronius inverters. | National Grid authority-to-interconnect correspondence, commissioned certificates, electrical inspection, as-built single-line drawing, Box installation archive, and long-term monitoring and service records. |
| Dorchester Bay Economic Development Corporation Dorchester, Boston, MA · 2018 | 59.64 kW final permit set | The 168-module ballasted layout was coordinated around an occupied building and an overnight electrical tie-in. | Final permit set, City of Boston permit SF830924, and substantial- and final-completion records. |
| ISBCC Roxbury, Boston, MA · 2012 | 103.74 kW final permit set | The stamped ballast set lists approximately 5.4 to 5.6 psf distributed loading and a non-penetrating layout. | Stamped PanelClaw ballast set Rev. 2 dated August 29, 2012, structural review, and permit records. |
Pleasant Valley’s record includes National Grid interconnection evidence; it does not establish today’s tariff for another building. For your site, identify the exact utility, commercial rate class, billing-demand method, supply contract and export treatment. Reconcile a model against an actual bill before applying solar or storage savings.
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Get a preliminary roof layout, panel count, system size, annual production range, and confidence grade before sharing contact details.
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It can be, but the answer must be modeled from the facility rather than a statewide average. Use the serving utility and rate class, 12 months of usage, interval demand where available, a site-specific production model, the EPC quote, and only incentives the project can document. This page separates current official program facts from customer inputs and modeled results.
The Massachusetts decision brief
Start with the utility, SMART pathway, and the building’s operating load.
For behind-the-meter SMART planning, identify the distribution territory, rate class, system size, and project type before using the Program Year 2026 value-of-energy workbook.
A base rate, a qualified adder, and the value-of-energy calculation are different inputs. Do not treat the headline base rate as an additional payment on every generated kWh.
Use the applicable DOER documents and the project’s qualification record. A planning worksheet is not a final tariff determination or an award.
The Section 48E begin-construction window closed July 4, 2026: projects that began construction on or before that date may use the longer continuity pathway. Commercial solar projects starting now generally must be placed in service by December 31, 2027. The statutory credit is 6%; it can increase to 30% when the applicable prevailing-wage and registered-apprenticeship requirements are met. Commercial tax credit guide →
IRS Notice 2025-42 · verified 2026-08-06The value comes from the facility's real load, tariff, site, and tax position—not a generic statewide payback.
Generating power on-site turns a variable grid charge into a fixed project cost you can model for the life of the system in Massachusetts.
Model the 6% statutory Section 48E credit, the increase to 30% when PWA rules are met, and 100% first-year bonus depreciation only when your tax team confirms eligibility.
Lower electricity spend flows straight to operating income — a durable line-item reduction, not a one-time rebate.
On-site clean generation supports emissions targets and the sustainability requirements tenants, investors, and municipalities increasingly ask for.
Program decision layer
Official program facts are separated from customer inputs and modeled results so a planning number cannot be mistaken for an approved incentive or a measured outcome.
Current Massachusetts program
Program Year 2026 has 600 MW AC available subject to the program cap. Projects above 25 kW AC use the base compensation tier below; behind-the-meter projects must also apply DOER's project-specific value-of-energy calculation. Location, off-taker, and other adders are separate eligibility tests.
Verified 2026-08-31
Official DOER values; $/kWh. Confirm the final Statement of Qualification.
| AC size | Base compensation |
|---|---|
| >25 to 250 kW AC | $0.2807/kWh |
| >250 to 500 kW AC | $0.2430/kWh |
| >500 to 1,000 kW AC | $0.2317/kWh |
| >1,000 to 5,000 kW AC | $0.1790/kWh |
Enter your own compensation rate to model the 20-year payment stream.
Editable default — adjust for your roof or ground array.
Statewide PY2026 base compensation rates (DOER, Table 5). Systems ≤25 kW instead earn a flat $0.03/kWh incentive ($0.06 low income). Adders are separate — add them into the rate below.
Pre-filled with the PY2026 base rate for your size tier — confirm the exact figure (and add any adders) from your Preliminary or Final Statement of Qualification.
Behind-the-meter only — the bill-offset value netted out of the incentive. Ignored for standalone systems.
Estimated annual SMART incentive
$14,568
per year for the 20-year term
20-year total
$291,360
Level, no escalation
Annual generation
240 MWh
240,000 kWh
Behind-the-meter mechanic: incentive = (compensation rate − value of energy) × generation. SMART tops up the value you already capture through bill offset, so a higher value of energy lowers the SMART payment.
Estimates only. SMART 3.0 base compensation rates are statewide by system-size category and reset annually by DOER (draft PY2027 rates due Oct 1, 2026; final Dec 1, 2026), with any step-down capped at 20% per year or 1¢. The seeded figures are the PY2026 base rates; use the exact rate on your Statement of Qualification, which fixes it for the 20-year term. Confirm figures with your installer and the current DOER program documents.
Official program fact
Government or utility source, linked and date-verified.
Customer input
Your bill, rate class, interval data, quote, and tax assumptions.
Site model
Roof or land geometry, production, shading, and interconnection review.
Verified outcome
Only measured project results are called outcomes; examples stay labeled as models.
Compare like with like
| Arrangement | Where the value comes from | Records to compare | Mistake to avoid |
|---|---|---|---|
| Behind-the-meter SMART | Bill savings from usable generation plus the separately calculated SMART incentive. | Serving distribution company, rate class, AC size, qualification and applicable DOER value-of-energy workbook. | Adding the entire headline compensation rate to retail savings without the required value-of-energy treatment. |
| Export or alternative meter arrangement | Value only the exports eligible under the actual utility and program agreement. | Meter configuration, applicable cap/eligibility determination, allocation and credit terms. | Assuming a warehouse, municipal-light customer and remote-credit project receive identical compensation. |
| Owner purchase versus PPA | The system owner and electricity customer may be different entities. | Roof tenure, REC rights, maintenance and removal obligations; tax ownership and financing terms. | Giving the host the provider’s tax credit or counting environmental attributes already conveyed elsewhere. |
Reconcile twelve months of bill savings first. Record SMART as a separate annual receipt only after the applicable VOE calculation and qualification; record program expiration in the annual schedule.
Test a lower VOE-adjusted incentive, unchanged billed demand and a roof-removal/reinstallation cost during the ownership term.
Program references—not an award or tariff determination: Massachusetts DOER · SMART 3.0 program details
One in-house engineering and install team, from first analysis through commissioning.
We model your building's real usage, roof, and Massachusetts utility tariff, then engineer a system sized to your load and budget.
Our licensed crews handle permitting, interconnection, and installation, then commission and inspect the system so it powers up to spec.
At handoff your team gets production visibility through the manufacturer portal (Enphase or SolarEdge), backed by our workmanship warranty and support line.
Eversource
National Grid
Unitil
Cape Light Compact
Project economics
Bring the installed-cost quote, site-specific production, utility-specific energy value, operating cost, financing terms, and confirmed tax assumptions. This state guide does not insert its own cost or payback model.
Your numbers · one shared calculation engine
Keep the EPC cash price, usable electricity value and dated benefits separate. Nothing below is prefilled with a state rate, invented installation price or assumed tax credit. Results stay on this device; this worksheet does not upload your bill or create an inquiry.
For this state: Reconcile twelve months of bill savings first. Record SMART as a separate annual receipt only after the applicable VOE calculation and qualification; record program expiration in the annual schedule.
Start with the building
These are planning scenarios, not claims about completed installations. Use the questions to make your site assessment and installer proposals more specific.
Does daytime load use the proposed roof generation, and can the roof remain in service for the project term?
Which loads require backup? Separate solar economics from a separately engineered resilience system.
Who owns each meter, building, and system, and which organization will claim any eligible benefit?
The investment decision
Compare proposals on the same scope. Keep cash price, conditional benefits, and annual operating value separate so an attractive headline does not hide a missing cost.
| Decision input | Evidence to request | Check before relying on it |
|---|---|---|
| Installed project cost | An itemized EPC proposal | Roof work, switchgear, interconnection, and exclusions |
| Electricity bill value | Utility tariff + interval load | Self-consumed generation, exports, and remaining demand charges |
| Program compensation | Applicable rules + project award | Eligibility, permitted combinations, term, and payment timing |
| Tax or financing benefit | Project-specific professional review | Ownership, usable benefits, financing fees, and payment schedule |
| Long-term cash flow | A dated, transparent financial model | O&M, replacements, insurance, degradation, and financing |
Screen the site first. Final pricing, program eligibility, and savings still require verification.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
A defensible project cost comes from an EPC quote built on the roof or site, structural scope, electrical equipment, labor rules, interconnection work, and schedule. The calculator on this page requires the quoted cost rather than supplying a statewide per-watt average.
Site-specific pricing with exact incentive calculations. No obligation.