Is solar worth it in Las Vegas?

The sunshine is not the question. Las Vegas has plenty and everybody selling solar here says so. The question is whether the money works on your roof, and the answer moves a long way from house to house.

Start with the market number. EnergySage puts Las Vegas payback at 18.19 years as of September 2026, against $2.41 per watt installed. That is an average across many roofs and many sizes, and it is longer than most advertising implies. It is also not your number.

Four things move it, and one of them matters more than the rest.

1. What share you use rather than export

This is the big one, and most people have never heard of it.

Under NMR-405 Tier 4, the power you send back is credited at $0.08347 per kilowatt hour on the schedule effective October 1 2026. The power you buy costs $0.11514 all in on Schedule RS from the same date. So a kilowatt hour used inside your own house is worth about 38 percent more than the same kilowatt hour exported.

That turns a question about panels into a question about your day.

What "75% of retail" actually costs you works the difference through, and net metering in Nevada explains the monthly netting that decides which bucket a kilowatt hour lands in.

The same arithmetic sits behind every rooftop solar proposal for a Las Vegas home we write: your roof, your bills, your rate plan.

2. How big your bill is now

Solar replaces energy charges. It cannot touch the rest.

Credits cannot be applied to the basic service charge, which is $18.00 a month on Schedule RS, nor to additional meter charges or local government fees. So there is a floor under every bill, and the smaller your energy charge is to begin with, the smaller the thing solar is working on.

A household paying a large summer bill has more to displace and does better. A household with a genuinely small bill may find the arithmetic never gets there, and that is a legitimate answer.

What a Las Vegas home actually pays per kilowatt hour has the full rate picture, including the October 1 2026 reset.

3. What you pay for the system

Obvious, but it is the part people compare worst. Two quotes for the same house differ mostly by system size, and totals hide that. Price per watt is the only figure that compares. What solar costs in Las Vegas in 2026 covers what moves a quote and what to ask for in writing.

4. How the federal credit reaches you now

This changed under everyone's feet and a lot of published advice has not caught up.

The credit a household claimed on its own purchase is finished for property placed in service after December 31 2025. A credit still exists, but it belongs to the owner of the system, which means it now reaches a homeowner only through a structure where somebody else owns the array, and it arrives as price rather than as money back.

Any payback calculation that still assumes a household credit on a cash purchase is wrong by a large margin. What the federal solar tax credit is worth to you in 2026 sets out both sections and the dates.

The thing most calculations leave out

From January 1 2027, southern Nevada bills gain a daily demand charge priced on the highest 15 minutes of use in a day. It is scheduled for January 1 2027, under appeal, and net metering credits will not offset it.

It does not make solar not worth it. It does mean a calculation built only on today's bill structure is incomplete, and it is a fair question to put to anyone quoting you: how have you accounted for it? The daily demand charge tracks where it stands.

If you might move

Nevada requires the utility to let you continue net metering at the original location for 20 years, and the arrangement is attached to the address rather than to you. An owned system conveys with the house.

So a shorter stay does not automatically make it a bad idea, but it changes what you are buying: a lower bill while you are there, plus whatever the arrangement is worth to a buyer, rather than a full payback you personally see through. If the system is leased or on a power purchase agreement instead, the transfer clause becomes the thing that matters most.

The 2026 questions: without the 30 percent, and against an index fund

Two questions come up more than any other this year. Is solar worth it in Vegas without the 30 percent? And if a system costs over $30,000 to save a couple of hundred dollars a month, would that money not do better in an index fund? Both deserve numbers, not a pitch.

Without the 30 percent. Section 70506 of Public Law 119-21 ended the household credit for expenditures made after December 31 2025. So the cash figures below have no credit in them at all. Take your own tax position to an independent tax professional before relying on any of this.

EnergySage's Las Vegas page, updated September 18 2026, estimates what an average 13.8 kW system leaves you with after 25 years, depending on how you pay. These are its estimates from its own quote data, not our quotes.

Cash still comes out ahead on those figures. The financed routes, on the same page's own arithmetic, come out behind. That is the honest shape of 2026 in Las Vegas: the system can still pay for itself, but interest or someone else's margin can eat the whole gain.

Why a power purchase agreement struggles here. A power purchase agreement bills you for every kilowatt hour the panels make. EnergySage puts the typical Las Vegas rate at $0.11 to $0.18 per kilowatt hour, with a 0 to 3 percent yearly escalator. On NV Energy's schedule effective October 1 2026 you pay $0.11514 all in for a kilowatt hour you buy on Schedule RS, and you are credited $0.08347 for one you export under NMR-405 Tier 4. So every exported kilowatt hour you pay a power purchase agreement rate for is credited back at less than the bottom of that range. Unless the agreement's price sits below the export credit, the exports lose you money, and the escalator widens the gap every year.

A lease is weaker still in 2026. EnergySage's page says lease and rent to own providers can still claim a version of the owner's credit. For a lease specifically, section 70513(c) of the same law added Section 48E(i), which denies the credit when the owner rents or leases home solar property to a third party. A power purchase agreement is written as a sale of electricity instead. Which side of that line a particular contract falls on is a question for an independent tax professional, not the salesperson.

Against an index fund. Spread EnergySage's cash figures evenly across 25 years: $33,270 out, and $33,270 plus $15,635 back, which is about $1,956 a year. That stream works out to roughly 3 percent a year on the money. The payback figure says the same thing another way: 18.19 years to earn back the price.

So if you are confident a fund returns more than about 3 percent a year over the next 25 years, the fund wins on paper. Three things cut the other way, and they are real. The solar return does not depend on the market, it depends on NV Energy's rates. A household that uses more of its own generation than the average beats the average. And an owned system conveys with the house. Three things cut against solar too: rates can fall as well as rise, as the October 1 2026 schedule shows, the daily demand charge is scheduled for January 1 2027, under appeal, and panels need a roof that will not need replacing halfway through.

A worked Las Vegas example. Take 1,000 kilowatt hours of your own panels' output and suppose you use 60 percent of it in the house and export 40 percent. On the October 1 2026 schedules that output is worth 600 x $0.11514 plus 400 x $0.08347, which is $69.08 plus $33.39, or $102.47. Flip it to 40 percent used and 60 percent exported and the same 1,000 kilowatt hours are worth $46.06 plus $50.08, or $96.14. Under a power purchase agreement at $0.11 per kilowatt hour, the bottom of EnergySage's range, you would pay $110.00 for that same output, more than it is worth to you in either case.

That is the whole decision in miniature: own it, use as much of it as you can yourself, and be very careful with anything that bills you per kilowatt hour produced.

Who it is probably not worth it for

We would rather say this than not.

• A genuinely small bill, where there is not enough energy charge to displace.
• A roof within a few years of replacement. Take the array off and put it back and you have paid twice.
• Heavy shading that no layout solves.
• A short expected stay combined with a lease or a power purchase agreement rather than ownership.

If any of those is your situation, the honest answer is probably not, or not yet.

How to get your own number rather than an average

1. Pull twelve months of your own usage from NV Energy, including the interval data.
2. Work out roughly what share of it happens in daylight. That is the self consumption question.
3. Get quotes with the price per watt and the first year production estimate on the same page, then line them up against each other.
4. Ask each company what happens to the arithmetic when the daily demand charge starts.

We will do that with your own bills and tell you what we find. If your roof is not a good candidate we will say so, which is a faster answer for both of us.

We recheck this page quarterly. Last checked 2026-09-28. If a number here has moved, tell us and we will fix it the same week.