How Much Does Solar Really Cost? (Honest Numbers)
May 9, 202610 Solar Installation Mistakes That Will Ruin Your Investment
May 9, 2026New Jersey is one of the best states in the country for solar. We have high utility rates, full retail net metering, the SuSI program paying $85/SREC-II for 15 years, and sales and property tax exemptions. It’s also a state with aggressive solar sales — national companies, door-to-door reps, and inflated quotes. After 15 years and 1,675+ installations, I can tell you exactly how to know if you’re being overcharged.
The benchmark: A quality 10kW solar installation in NJ in 2026 — REC Alpha Pro or QCell panels, Enphase IQ8 microinverters, proper permits, SuSI registration included — should cost $26,000–$32,000 all-in. That’s $2.60–$3.20/watt. If you’re being quoted significantly above that without a clear explanation, you’re overpaying.
What a Fair NJ Solar Price Looks Like
Solar is priced by the watt. Price per watt = total system cost ÷ system size in watts. On a 10kW (10,000-watt) system, $28,000 = $2.80/watt. This is the number to use when comparing quotes.
Fair price ranges in NJ in 2026 (solar-only, no battery):
- $2.60–$2.80/watt: Budget to mid-range — acceptable for mid-tier equipment (QCell, Jinko Tiger Neo, string inverter)
- $2.80–$3.10/watt: Mid to quality range — appropriate for premium panels (REC Alpha) with Enphase IQ8 microinverters and a full 25-year labor warranty
- $3.10–$3.40/watt: Premium range — justified for very complex installs (multiple roof planes, steep pitch, ground mounts) or exceptional warranty coverage
- Above $3.50/watt: Requires a specific explanation. Not automatically wrong, but ask exactly what’s driving the price
Note: these are all-in prices including panels, inverters, racking, electrical work, permits, interconnection application, and SuSI GATS registration. A quote that shows a lower hardware price but charges separately for “installation,” “permits,” or “interconnection fees” as add-ons isn’t cheaper — it’s obscured.
The Door-to-Door Problem
New Jersey has a high density of door-to-door solar sales reps, particularly in Monmouth, Ocean, Middlesex, and Burlington counties. These companies pay large commissions — often $2,000–$4,000 per signed deal — to their sales forces. That cost doesn’t come from thin air; it’s embedded in your quote.
A company paying a $3,000 sales commission on a $28,000 deal is essentially adding 10.7% to your cost before anyone touches your roof. The same system from a company without a door-to-door force might be $24,000–$25,000.
This doesn’t mean door-to-door companies always overcharge — but it’s why you should always get at least two quotes. If a company came to your door, get a comparison quote from a company you sought out yourself.
The National Company Premium
Sunrun and Sunnova are the two national companies most active in NJ. Their overhead — national marketing spend, large corporate infrastructure, regional subcontractor networks — means their costs are structurally higher than a well-run local installer’s. I’ve seen Sunrun quotes in NJ that are $0.60–$1.00/watt above what I’d charge for identical or better equipment.
On a 10kW system, $0.80/watt premium = $8,000 more. Add in the SuSI SREC-II income you forfeit if they push a lease (approximately $15,300 over 15 years on a 10kW system at $85/SREC-II), and the total cost difference between a Sunrun lease and a quality local ownership deal can reach $20,000–$25,000 over the system life.
How to Spot an Inflated Quote
Vague equipment specifications
Any quote that doesn’t name the exact panel model and inverter model is hiding something. “Premium panels” tells you nothing. “REC Alpha Pro 410W” tells you exactly what you’re getting. If an installer won’t specify the equipment before you sign, demand it in writing. If they can’t produce it, walk away.
Oversized systems
Bigger system = bigger revenue for the installer. Some companies intentionally size systems 20–30% larger than your usage requires. NJ’s annual true-up means excess production is credited at the avoided cost rate (~$0.07/kWh) rather than the full retail rate — so you’re paying for capacity you can’t financially use. Ask the installer to show you 12 months of your utility usage and explain why the system size matches that usage.
Long-term leases presented as “no-cost solar”
A lease isn’t free solar. It’s a 20–25 year payment agreement where the installer owns the system, collects your SuSI SREC-II income (approximately $15,300 on a 10kW system over 15 years), and charges you an escalating monthly rate that may exceed your current utility bill by year 15–20. In NJ, leasing is almost never the right financial choice given the strength of the SuSI program for system owners.
Fabricated urgency
“This price expires at midnight.” “There are only 2 slots left in your area.” “The incentives are changing next month.” These are high-pressure tactics designed to prevent you from getting a second quote. No legitimate NJ solar incentive expires overnight. The SuSI rate ($85/SREC-II) is set by the NJ BPU and changes on an annual schedule announced months in advance. Walk away from any installer who uses deadline pressure to close you.
What to Actually Ask For
When you get a quote, ask for each of these in writing:
- Price per watt (total cost ÷ system kW)
- Exact panel model number and wattage
- Exact inverter model number
- Workmanship warranty on roof penetrations (years and what’s covered)
- Whether SuSI GATS registration is included as a job deliverable
- Permit and interconnection costs — are they included or extra?
- System production estimate (kWh/year) and how it was calculated
Put these side by side across two or three quotes. If a quote doesn’t provide all seven, ask. A legitimate installer answers all seven without hesitation.
The Right Way to Compare Two NJ Quotes
Don’t compare total prices. Compare:
- Price per watt — puts systems of different sizes on the same basis
- Equipment quality — a 25-year labor warranty (REC ProTrust) vs. a 10-year warranty has real financial value ($2,000–$4,000 over the system life)
- Included deliverables — does SuSI registration, permitting, and interconnection come with it or cost extra?
- Who does the work — installer employees vs. subcontractors
A $28,000 quote with REC Alpha Pro panels, Enphase IQ8, 25-year labor warranty, and SuSI registration included may be a better deal than a $24,000 quote with budget panels, no SuSI registration included, and a 10-year labor warranty — when you account for the full 25-year lifecycle costs.
Frequently Asked Questions
What is the average cost of solar in New Jersey in 2026?
A quality 10kW solar installation in NJ runs $26,000–$32,000 in 2026 — that’s $2.60–$3.20/watt for a system with premium panels, Enphase microinverters, and a licensed NJ installer doing their own work. Budget systems with mid-tier equipment and a string inverter start around $22,000–$25,000. Above $35,000 for a standard 10kW solar-only system without a battery, you’re overpaying without a specific reason.
How do I know if a solar quote is too high?
Calculate price per watt: total price ÷ system kilowatts. For NJ in 2026, $2.60–$3.20/watt is fair for quality equipment. Above $3.50/watt, ask what specifically justifies the premium. Compare the equipment specification — is it a premium panel with a 25-year labor warranty, or a generic panel? Ask if SuSI GATS registration and permits are included. Then get a second quote.
Should I get multiple solar quotes in NJ?
Yes — always get at least two, ideally three. But compare them on the same basis: price per watt, exact panel model, inverter model, warranty terms (especially labor warranty), and whether SuSI registration is included. Don’t compare just total prices — a lower price with worse equipment and no GATS registration can easily cost more over 25 years than a higher-priced quality install.
Is it worth getting a quote from a national company like Sunrun?
Getting a quote is fine — the information is useful for comparison. Just know their structural cost disadvantages: higher overhead, sales commissions, and frequent use of leases that forfeit your SuSI SREC-II income. Compare their quote against at least one local installer on a price-per-watt basis with identical equipment specifications before deciding.
How much is a door-to-door solar rep’s commission?
Commissions vary, but door-to-door solar sales reps in NJ are commonly paid $1,500–$4,000 per signed deal. On a $28,000 system, a $2,500 commission adds roughly 9% to the cost before the first panel goes on your roof. That’s why comparison-shopping — especially with a company you sought out yourself rather than one that came to your door — often reveals meaningful price differences.
