Since October 1, 2025, northern and southern Nevada have been running different solar economics, and most quotes have not caught up. If you are on Sierra Pacific around Reno, your exports are now netted in 15-minute intervals. If you are on Nevada Power around Las Vegas, netting is still monthly. Same state, same 75% export rate, wildly different outcome for the same roof, because a monthly ledger forgives a midday surplus and a 15-minute one does not. Court challenges to the change were denied in February 2026, so this is settled rather than pending.
North and South Now Play Different Games
Your utility | Sierra Pacific, northern Nevada | Nevada Power, southern Nevada |
|---|---|---|
Share of households | About 25% | About 70% |
How exports are netted | Every 15 minutes, for applications on or after October 1, 2025 | Monthly, unchanged |
What that means at noon | Surplus in that interval is exported at 75% of retail immediately | Surplus offsets anything you import later that month at full value |
Effect of a battery | Large. Storing midday output keeps it at full retail value | Moderate. The monthly ledger already does much of that work |
Existing customers | Keep their tier and monthly netting | Keep their tier and monthly netting |
The practical consequence is that a northern Nevada system should be sized and equipped differently from a southern one. Under 15-minute netting, every kilowatt-hour your house is not using at the moment it is produced leaves at the Tier 4 credit instead of offsetting a full-price import later, with both sides modeled here from the 14.16¢ statewide average. That single change is what turns a battery in Reno from a nice-to-have into part of the financial case, while in Las Vegas the monthly ledger still absorbs the same surplus for you.
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Find out which netting rule applies to you
Tier 4, and the Twenty-Year Lock
Nevada replaced one-to-one net metering with a tiered successor tariff under AB 405, and the earlier tiers are long closed. New residential customers up to 25 kW enter Tier 4, where excess generation is credited at 75% of the retail rate, modeled here as about 10.62¢ against the 14.16¢ statewide average. Tiers 1, 2 and 3, at 95%, 88% and 81%, closed between 2018 and 2020 and are not coming back.
What makes Tier 4 more attractive than it sounds is the lock: your rate is fixed for 20 years at that address. In a state where retail rates have climbed 4.56% a year over the last five, among the fastest escalation rates in the country, a locked share of a rising number is a genuinely useful position. There is also a new residential demand charge in the pipeline, postponed to January 1, 2027, which is worth asking about before you finalize anything.
One sizing rule catches people out: Nevada limits systems to 150% of your average annual consumption. You cannot build for a future pool, workshop or second EV on the strength of a plan. Size for what the meter has actually seen.
The Strongest Cost Numbers in the Country
Nevada has the best underlying cost position of any state in the country by a wide margin. Installation runs $2.52 per watt (as of March 1, 2026), the 6th cheapest in the country, and the sun does more work here than anywhere else on this list: 1,801 kWh per kW a year around Las Vegas, against 1,399 in Missouri.
Because that sunlight goes further, the typical system is small: 6.2 kW at about $15,615 gross, among the lowest anywhere, producing roughly 11,166 kWh a year. Consumed as generated, that is worth about $1,581 a year at the statewide average, a 9.9-year payback, among the shortest modeled paybacks in the country. Export half of it at the Tier 4 rate and you land near 11.3 years, which is still comfortably the best on offer here. And unlike Nebraska or Missouri, fast rate escalation is working in your favor rather than against you.
The benchmark across sizes, gross before incentives, with the one Nevada-specific line worth watching: what the Tier 4 credit pays each year on half of each system’s output.
System size | Gross cost at $2.52/W | Tier 4 value of half its output (yearly) |
|---|---|---|
4 kW | $10,080 | About $383 |
5 kW | $12,600 | About $478 |
6.2 kW, the typical Nevada system | $15,615 | About $593 |
8 kW | $20,160 | About $765 |
10 kW | $25,200 | About $956 |
12 kW | $30,240 | About $1,148 |
That figure runs on the statewide average, which is ranking context rather than a billed rate. Nevada Power and Sierra Pacific each file their own residential rates, and the Tier 4 credit is 75% of whatever your utility actually charges, so rerun both sides with the rate on your own bill.
The federal residential credit is $0 for systems you own whose installation is completed after December 31, 2025 under Public Law 119-21. Nevada authorizes both leases and power purchase agreements, so third-party ownership is a genuine route here if you want someone else carrying the equipment, though the incentives then follow that owner rather than you.
Who Should Still Say No in Nevada
- Northern Nevada households with no battery and nobody home in the daytime. Under 15-minute netting this is the profile that loses most, and it is exactly the one a monthly-netting quote will model optimistically.
- Anyone shown a proposal that does not say which netting regime applies. After October 1, 2025 that omission is not a detail. Ask whether the model assumes monthly or 15-minute intervals, and get the answer in writing.
- Buyers planning around future consumption. The 150% cap is measured against what you have actually used, not what you intend to use.
- Anyone quoted well above $2.52 per watt. Nevada is the 6th cheapest install market in America; paying mid-table prices here surrenders the state’s main advantage.
Nevada Solar Cost FAQs
About $2.52 per watt installed, the 6th cheapest in the country as of March 1, 2026. Because Nevada sunlight is strong at 1,801 kWh per kW a year, the typical system is small at 6.2 kW, roughly $15,615 before incentives, which is the lowest gross cost of any state we track.
Not one-to-one. Nevada uses a tiered successor tariff under AB 405, and new residential customers up to 25 kW enter Tier 4, where excess generation is credited at 75% of the retail rate, about 10.62¢ against the 14.16¢ statewide average. That rate is locked for 20 years at your address, which is valuable in a state where rates have risen 4.56% a year.
For Sierra Pacific applications on or after October 1, 2025, exports are netted every 15 minutes rather than monthly: any surplus within an interval is sold at 75% of retail immediately, instead of offsetting a later import at full value. Nevada Power in the south remains on monthly netting. Court challenges were denied in February 2026, so the change stands.
About 9.9 years for a household consuming what it generates, the only single-digit figure across Mississippi, Missouri, Montana, Nebraska and Nevada. Exporting half the output at the Tier 4 rate moves it to roughly 11.3 years. Strong sunlight, cheap installation and the fastest rate escalation in the group all work together here.
Up to 25 kW for residential customers, and no larger than 150% of your average annual consumption. That second limit is measured against what your meter has actually recorded, so you cannot size for a pool, workshop or additional electric vehicle you have not bought yet.
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Methodology: cost figures use the EcoGen Solar Cost Index for Nevada, $2.52 per watt as of March 1, 2026, with payback modeled with no federal residential credit for owner-purchased systems, exports at the Tier 4 rate of 75% of retail, rate escalation at the state 5-year average of 4.56%, 0.5% annual panel degradation, and a 25-year horizon. The 15-minute interval netting applies to Sierra Pacific applications on or after October 1, 2025 and is described from the Public Utilities Commission docket record.
References & Research Sources
EcoGen America reviewed Public Utilities Commission of Nevada tariff and rate-case materials, federal electricity price and utility datasets, Census home-value data, and federal tax guidance for this Nevada solar cost guide. Sources were accessed between June 10 and August 17, 2026, unless another date is listed below.
- Public Utilities Commission of Nevada (PUCN). Net Metering Program Pages. AB 405 and NRS 704.7715: the tiered successor tariff and the Tier 4 credit at 75% of retail, locked 20 years at the original location. Accessed June 11, 2026.
- Public Utilities Commission of Nevada (PUCN). General Rate Case Dockets 25-02016 and 25-03006. Order introducing 15-minute interval netting for Sierra Pacific applications from October 1, 2025 and postponing the residential demand charge to January 1, 2027; approved September 2025, modified November 20, 2025; court challenges denied February 2026. Accessed June 11, 2026.
- U.S. Energy Information Administration (EIA). Electric Power Monthly, Table 5.6.A. Average residential electricity prices by state, March 2026 edition. Accessed June 10, 2026.
- U.S. Energy Information Administration (EIA). Form EIA-861: Annual Electric Power Industry Report, 2024. Residential customer counts for Nevada Power, Sierra Pacific Power, and Valley Electric Association. Accessed June 10, 2026.
- U.S. Census Bureau. American Community Survey, 2024. Median home value data used for cost-to-value context. Accessed June 11, 2026.
- Internal Revenue Service (IRS). One, Big, Beautiful Bill Provisions. Guidance on Public Law 119-21, including termination of the Section 25D residential credit for systems whose installation is completed after December 31, 2025. Accessed August 15, 2026.
