According to MySolarFY’s July 2026 analysis, a typical 8 kW rooftop system in Warwick makes about 10,700 kWh of electricity a year, based on a real NREL PVWatts run for Warwick ZIP 02886. Valued against Rhode Island’s roughly 29.91 cents per kWh residential rate (EIA, March 2026), that offsets about $3,200 a year, and after Rhode Island’s one-time $5,000 Renewable Energy Fund grant the simple payback lands near 6 years on the net-metering path. Your Rhode Island Energy account, your roof, and which program you pick change the result. The 30 percent federal residential solar tax credit (Section 25D) ended December 31, 2025, so it is not part of a 2026 Warwick estimate.
Warwick solar numbers, dated
- 29.91 cents per kWh Rhode Island residential electricity, the statewide average as of March 2026 (EIA); your exact Rhode Island Energy rate lives on the utility hub below.
- about 8,037 kWh a year on a 6 kW system real NREL PVWatts production for Warwick ZIP 02886, or roughly 1,340 kWh per kW, a touch higher than inland Providence.
- Rooftop solar is a permitted accessory use citywide Warwick’s 2022 zoning change (PCO-3-22) restricts commercial ground-mount solar farms, not homeowner roofs (City of Warwick).
- $0.65 per watt, capped at $5,000 the Rhode Island Renewable Energy Fund grant, for net-metered systems only (RI OER / RI Commerce).
- Pick ONE: net metering or the REG program the two crediting paths are mutually exclusive in Rhode Island (RI Office of Energy Resources).
Why Warwick’s numbers make solar worth a look
Warwick sits on the western shore of Narragansett Bay in Kent County, and it is one of Rhode Island’s largest cities, ranked third by population behind Providence and Cranston (City of Warwick, 2019). Two things make the solar math interesting here. First, Rhode Island’s electricity is expensive, averaging about 29.91 cents per kWh statewide as of March 2026 (EIA), so every kilowatt-hour your roof makes offsets a pricey one. Second, Warwick’s bay-side location gets slightly stronger sun than inland parts of the state: a real NREL PVWatts run for Warwick ZIP 02886 puts a 6 kW system at about 8,037 kWh a year, or roughly 1,340 kWh per kW (NREL PVWatts, v8, as of July 2026), a bit above the Providence figure. This page adds the Warwick-specific pieces, and links the statewide program mechanics to the Rhode Island solar hub so you are not reading the same rules twice.
| Warwick solar factor | What to know (2026) |
|---|---|
| Your electric utility | Rhode Island Energy, the trade name of The Narragansett Electric Company (PPL family, formerly the National Grid brand), which serves nearly all of Rhode Island including Warwick (Rhode Island Energy) |
| Rate context | About 29.91 cents per kWh, the RI statewide residential average (EIA, March 2026); among the highest in the country |
| Typical production (02886) | About 8,037 kWh a year per 6 kW, roughly 1,340 kWh per kW (NREL PVWatts, ZIP 02886) |
| Crediting paths | Net metering OR the Renewable Energy Growth (REG) program, mutually exclusive, you pick one (RI OER) |
| Up-front grant | Renewable Energy Fund: $0.65/W up to $5,000, net-metered systems only (RI Commerce) |
| Rooftop permitting | Rooftop solar is a permitted accessory use in every district; a City of Warwick building and electrical permit applies |
| 2022 zoning rule | PCO-3-22 restricts commercial ground-mount solar farms, not homeowner roofs (City of Warwick) |
| Federal credit | The 30% residential credit (Section 25D) ended December 31, 2025 (IRS) |
Rate: EIA (March 2026). Production: NREL PVWatts v8, ZIP 02886. Programs: RI Office of Energy Resources and RI Commerce (as of July 2026). Zoning: City of Warwick ordinance PCO-3-22 (2022). Confirm your exact Rhode Island Energy rate and the current program terms before you decide.
See what solar programs are available at your Warwick address
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Who is your electric utility in Warwick?
Your utility is Rhode Island Energy, and the name on your bill changed, not your wires. Rhode Island Energy is the trade name of The Narragansett Electric Company, now part of the PPL Corporation family of companies, and it previously operated under the National Grid brand (Rhode Island Energy, as of July 2026). It is the electric distribution utility for nearly all of Rhode Island, Warwick included, and it runs both net metering and the Renewable Energy Growth program plus the interconnection process you go through to switch a system on. If you searched “National Grid Warwick,” that is the same utility under its current name. For the full net-metering mechanics and the National Grid to Rhode Island Energy history, see our Rhode Island Energy, formerly National Grid, solar guide.
What does solar cost and save on a Warwick home?
A typical Warwick system pays for itself in roughly 6 years on the net-metering path, driven by Rhode Island’s high rate and Warwick’s decent sun. The table below is our own estimate for three common system sizes, built from Warwick’s real production, Rhode Island’s electricity rate, and the up-front Renewable Energy Fund grant. It is the kind of math the aggregator pages skip: a Warwick-specific payback, not a national average. Your roof will differ with pitch, shade, and orientation, so treat it as a starting point and get quotes for your actual home.
| System size | Est. annual production (02886) | Est. annual bill offset | Est. cost after the $5,000 REF grant | Simple payback |
|---|---|---|---|---|
| 6 kW | about 8,040 kWh | about $2,400 | about $14,100 | about 5.9 years |
| 8 kW | about 10,700 kWh | about $3,200 | about $19,000 | about 5.9 years |
| 10 kW | about 13,400 kWh | about $4,000 | about $25,000 | about 6.2 years |
Estimate only, computed by MySolarFY (July 2026). Inputs: production from a real NREL PVWatts v8 run for Warwick ZIP 02886 (6 kW = 8,037 kWh/yr, about 1,340 kWh per kW), scaled by system size; Rhode Island residential rate 29.91 cents per kWh (EIA, March 2026); installed cost about $3.00 per watt before incentives (EnergySage Rhode Island data, as of 2026); Renewable Energy Fund grant $0.65 per watt capped at $5,000 (RI OER / RI Commerce, 2026), which the 8 kW and 10 kW systems reach. The paybacks land close together because cost and bill offset both scale with system size, while the REF grant stops growing at its $5,000 cap on the 8 kW and 10 kW rows, so the larger systems take a few extra months. Bill offset values the production at today’s flat retail rate on the net-metering path; a fixed monthly Rhode Island Energy service charge stays on your account, so a solar bill is rarely zero. This is the retail value of the power, not a guaranteed bill cut, and it rises if Rhode Island rates keep climbing. The 30% federal residential credit (Section 25D) ended December 31, 2025 (IRS), so there is nothing federal to subtract for a 2026 buyer.
For how these numbers are sourced and checked, see our data and methodology.
Does Warwick’s solar zoning ordinance stop rooftop solar?
No. Warwick’s 2022 solar zoning changes target commercial ground-mounted solar farms, and they leave homeowner rooftops alone. This is the single most misread thing about solar in Warwick, because one of the top search results is a headline about the city “restricting solar development.” Here is what actually happened: in 2022 Warwick amended its zoning ordinance (PCO-3-22, under Mayor Frank Picozzi) to prohibit large-scale, commercial and utility-scale ground-mounted solar across the city, with the only principal-use ground-mount now allowed on contaminated industrial-zoned parcels by special use permit (City of Warwick, 2022). The change came after residents organized against proposed solar developments on open land and wooded parcels (ecoRI News, 2022).
Rooftop solar on your own house is a different category, and it stays permitted everywhere in the city. Warwick’s zoning code treats roof or building-mounted panels as an accessory solar energy system, a permitted accessory use in every district, distinct from the restricted large-scale systems (City of Warwick ordinance PCO-3-22, 2022). In plain terms: you cannot build a solar farm on an open Warwick lot, but you can put panels on your roof, and a small ground-mount sized to serve your own home is generally treated as accessory too. So the scary “solar restrictions” headline is about developers, not about a family adding rooftop panels.
The one-line version for a Warwick homeowner. The 2022 ordinance restricts commercial solar farms on open and industrial land. It does not restrict rooftop solar on your house, which is a permitted accessory use citywide. You still pull a City of Warwick building and electrical permit, the same as any other roof-mounted work.
Net metering or the REG program: the Warwick choice
Rhode Island makes you pick one of two crediting paths, and that choice matters more than any city detail. Through Rhode Island Energy you either take standard net metering, which credits the power your panels offset on your bill and is the only path eligible for the up-front $5,000 Renewable Energy Fund grant, or you enroll in the Renewable Energy Growth (REG) program, a 20-year fixed tariff that pays a set rate for everything your system generates (RI Office of Energy Resources, as of July 2026). The two are mutually exclusive: you choose one program or the other, not both. For the 2026 program year, REG’s Small Solar ceiling for a typical home rooftop is 33.95 cents per kWh, fixed for 20 years, which sits above today’s retail rate but does not come with the REF grant (RI Office of Energy Resources, as of July 2026).
Because it is a real either-or, the honest comparison is REG on one side against net metering plus the REF grant on the other. Net metering suits a home that uses much of its own solar and wants the up-front grant and rising-rate upside; REG suits a home that wants a locked 20-year payment on all its output. We break the full decision down, with a worked 20-year comparison, on our Rhode Island solar incentives 2026 page, and cover the plain-English basics on understanding net metering. The takeaway for Warwick: ask any installer to model both paths for your roof before you sign.
Coastal Warwick: flood zones, wind, and your roof
Warwick is a coastal city, and that shapes how a good installer designs your system, not whether you can go solar. The city has about 39 miles of coastline along Greenwich Bay and Narragansett Bay (City of Warwick Hazard Mitigation Plan, 2019), with neighborhoods like Conimicut, Oakland Beach, and Warwick Neck sitting in mapped FEMA flood zones and a higher coastal wind exposure than inland Rhode Island. Two practical things follow.
- Wind and roof attachment. Rooftop panels near the bay must be racked and attached to meet the wind-load requirements in Rhode Island’s building code, which run higher in coastal exposure. A reputable installer engineers the mounting and attachment points to code rather than using a one-size layout, so the array holds up in a coastal blow.
- Flood zones and ground equipment. In a mapped flood zone the panels themselves sit safely up on the roof, but the ground-level gear, the inverter, any battery, and the electrical shutoff, should be mounted above the base flood elevation. If your home is near the water, confirm your flood zone with the FEMA Flood Map Service Center and tell your installer, so the equipment is placed correctly the first time.
None of this is a reason a Warwick home cannot go solar; it is a reason to choose an installer who has done coastal Rhode Island roofs before.
Permits and connecting to Rhode Island Energy
A Warwick rooftop install is a permitted, inspected home improvement, and your installer normally handles the paperwork. The path is straightforward:
- City of Warwick permits. Your installer pulls a building permit and an electrical permit from the City of Warwick for the roof-mounted work, the same as other electrical and structural home projects.
- Rhode Island Energy interconnection and program election. You or your installer file with Rhode Island Energy to connect the system and to elect net metering or the REG program, including the system design and inverter data.
- Install and inspect. A licensed contractor installs the system and it passes the city’s electrical inspection.
- Permission to Operate. Rhode Island Energy sets the correct meter for your path and issues Permission to Operate. Do not switch the system on until that approval lands, because the system only starts earning once it is approved to run.
Warwick’s built-up character, from the T.F. Green International Airport area in the center of the city to the dense bay neighborhoods, means most roofs are ordinary residential permits; a licensed installer who works in Warwick will know the local building department’s process.
What Rhode Island does not have in 2026
Knowing what is off the table keeps you from budgeting around a number that will not show up. A few things trip Warwick buyers up:
- No 30% federal homeowner credit. The federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so a 2026 cash or loan buyer cannot claim it (IRS; SEIA, as of 2026). The only federal solar credit left, Section 48E, is a commercial credit claimed by the business that owns a leased or PPA system, not by a homeowner. For the timeline, see what the end of the federal solar tax credit means.
- No state income tax credit and no homeowner SREC market. Rhode Island pays residential solar through REG or net metering, not through a state income tax credit or tradable certificates, so there is nothing like that to sell here (RI OER, as of 2026).
- No stacking REG with net metering or the REF grant. You pick one crediting path, and the $5,000 REF grant is for net-metered systems only (RI Office of Energy Resources, as of July 2026).
What does carry the Warwick payback is the high electricity rate, the crediting path you choose, the up-front REF grant on the net-metering side, and Rhode Island’s sales-tax and property-tax exemptions on solar equipment and the added home value.
How to screen a Warwick solar installer
Warwick is a competitive Rhode Island market, so instead of chasing a “best installer” list, screen every company against objective criteria. The most useful thing you can do is make each installer show its work for your specific roof:
- NABCEP certification, the industry’s professional standard for PV installers.
- A valid Rhode Island contractor registration with the Contractors’ Registration and Licensing Board, plus proper electrical licensing.
- A clear workmanship and equipment warranty in writing.
- A quote that models both crediting paths for your home: net metering with the REF grant, and REG at the current program-year ceiling over 20 years.
- Coastal experience, so the racking and attachment meet Rhode Island’s wind-load code and any flood-zone equipment is placed above the base flood elevation.
- A written production estimate for your actual roof, and a plan to handle the City of Warwick permits and the Rhode Island Energy Permission to Operate.
MySolarFY matches you with licensed installers that serve your area so you can compare real local quotes side by side, with no obligation. For a nearby city view, see our page on solar in Providence.
Check which solar programs are available at your Warwick address →
Frequently asked questions
Who is my electric utility in Warwick, RI?
Rhode Island Energy. It is the trade name of The Narragansett Electric Company, now part of the PPL Corporation family of companies, and it previously operated under the National Grid brand (Rhode Island Energy, as of July 2026). Rhode Island Energy is the electric distribution utility for nearly all of Rhode Island, Warwick included, and it runs net metering, the Renewable Energy Growth program, and the interconnection process that grants Permission to Operate. If you remember your utility as National Grid, it is the same company under its current name, so old National Grid Warwick guidance now applies to Rhode Island Energy.
Does Warwick’s solar zoning ordinance stop me from putting solar on my house?
No. Warwick’s 2022 zoning change (PCO-3-22, under Mayor Frank Picozzi) restricts large, commercial and utility-scale ground-mounted solar across the city, allowing principal-use ground-mount only on contaminated industrial parcels by special permit (City of Warwick, 2022). Rooftop and building-mounted solar on your own home is a permitted accessory use in every district, so the ordinance does not touch it. The “Warwick restricts solar” headlines are about solar farms on open land, not about a homeowner adding rooftop panels. You still pull a City of Warwick building and electrical permit, the same as any roof work.
How much can solar save on a typical Warwick home?
Our July 2026 estimate for a typical 8 kW Warwick system is about 10,700 kWh a year of production, from a real NREL PVWatts run for ZIP 02886, worth roughly $3,200 a year against Rhode Island’s 29.91 cents per kWh rate (EIA, March 2026). After the one-time $5,000 Renewable Energy Fund grant on the net-metering path, the simple payback lands near 6 years, before the fixed monthly Rhode Island Energy service charge that stays on your account. Savings are not guaranteed and depend on your roof, your usage, and whether you pick net metering or the REG program. Get quotes for your actual home to pin it down.
Do I pick net metering or the REG program in Warwick?
You pick one; Rhode Island makes them mutually exclusive (RI Office of Energy Resources, as of July 2026). Net metering credits the power your panels offset on your bill and is the only path eligible for the up-front $5,000 Renewable Energy Fund grant, so it suits a home that uses much of its own solar and wants cash off the install now. The Renewable Energy Growth (REG) program instead pays a fixed rate, 33.95 cents per kWh for a typical home rooftop in the 2026 program year, for everything your system generates over 20 years, but with no REF grant. We work the full comparison on our Rhode Island solar incentives 2026 page. Ask your installer to model both for your roof.
Does my Warwick home’s flood zone or coastal location affect solar?
It affects the design, not whether you can go solar. Warwick has about 39 miles of coastline along Greenwich Bay and Narragansett Bay (City of Warwick, 2019), and bay neighborhoods sit in mapped FEMA flood zones with higher coastal wind exposure. The panels sit safely on your roof, but a good installer racks and attaches them to Rhode Island’s wind-load code, and in a flood zone mounts the inverter, any battery, and the shutoff above the base flood elevation. Confirm your flood zone with the FEMA Flood Map Service Center and tell your installer, and choose one with coastal Rhode Island experience.
What happened to the 30% federal solar tax credit for Warwick buyers?
It ended. The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so a Warwick homeowner buying with cash or a loan in 2026 cannot claim it (IRS, as of 2026). A separate commercial credit, Section 48E, can apply to leased and PPA systems, but the business that owns the system claims it, not the homeowner. What still carries the Warwick payback is Rhode Island’s high electricity rate, your crediting path, the $5,000 REF grant on the net-metering side, and the state sales-tax and property-tax exemptions. MySolarFY does not provide tax advice; consult a tax professional.
Reviewed by the MySolarFY editorial team, updated for July 2026. Figures were verified against the linked EIA, NREL PVWatts, Rhode Island Energy, Rhode Island Office of Energy Resources, Rhode Island Commerce, City of Warwick, IRS, and SEIA sources as of July 2026. Electricity rates, the REG ceiling price, and the Renewable Energy Fund grant reset over time, so confirm current terms with Rhode Island Energy and the Rhode Island Office of Energy Resources before you decide. MySolarFY does not provide tax or financial advice; consult a licensed professional about your own situation. Learn more about the MySolarFY editorial team and how we work.
MySolarFY is a free service that matches homeowners with licensed solar installers. We are not an installer, financing company, or government program. “No up-front cost” refers to qualifying lease or PPA financing, where eligible homeowners may have no out-of-pocket cost at installation. Lease and PPA terms typically run 20 to 25 years, may include an annual price escalator, and total payments may exceed the cost of a cash purchase; on a lease or PPA the Renewable Energy Fund grant, the crediting value, and any tax benefit go to the company that owns the system, not the homeowner. Homeowners do not get the federal residential credit (Section 25D) that ended after December 31, 2025. Solar panels are not free and monthly payments apply. Eligibility, savings, incentives, and rates vary and are not guaranteed. See our full disclaimer.