The question everyone asks before going solar: Should I wait for prices to drop further? The short answer is no—waiting won’t deliver meaningfully cheaper solar panels. Yes, panel costs have plummeted 90% since 2010, but nearly all that hardware cost reduction has already happened. Solar modules now cost 15-25 cents per watt wholesale, down from $3-4 per watt in 2010. What changed recently is that module prices have plateaued. In fact, 2026 prices are flat to slightly higher than 2024 due to tariff shifts on imported modules, and further significant drops are unlikely. Meanwhile, electricity rates continue rising 4-5% annually, which means every year you wait costs you real money in higher grid bills. We’ll break down what drove past price declines, why they’ve stopped, and why the “waiting cost” matters more than any future price drops.

How Much Solar Prices Have Already Fallen

The headline figure is stunning: solar module prices dropped roughly 90% between 2010 and 2023. In 2010, a solar module cost $3-4 per watt wholesale. Today, it’s $0.18-0.25 per watt. This is one of the fastest cost declines in technology history, rivaling smartphone chips and LED lights.

But the installed cost of a solar system is different from the module cost. A fully installed residential system currently costs $2.50-3.50 per watt installed, or roughly $17,500-24,500 for a typical 7 kW home system before tax credits. That’s about $5,000-7,000 cheaper than it was in 2018-2019, but the improvement has slowed dramatically in recent years.

Here’s why: modules are now only about 12% of the installed system cost. The rest breaks down roughly as follows: labor and engineering (40%), inverters and balance-of-system hardware (20%), permitting and administrative overhead (15%), installer profit margin (8%), supply chain and logistics (5%), and miscellaneous (5%). Labor and overhead—the parts that don’t scale with mass production—dominate the cost structure now.

What’s Driving 2026 Prices—And Why Big Drops Are Unlikely

Module Prices Are Flat, With Upward Pressure from Tariffs

Global solar module production is concentrated in Asia, primarily China, with some capacity in India and Vietnam. In 2024-2025, the US imposed new tariffs on solar modules from Southeast Asia, which added 10-15% to import costs. Some importers have shifted to modules made in India or domestically, but those alternatives are more expensive, keeping pressure on prices.

The module market is now mature and saturated. Production capacity far exceeds demand globally, which actually suppresses prices, but the US tariff shield is keeping US prices from falling as fast as global wholesale prices. Barring a change in tariff policy, module prices will stay flat or trend slightly higher in 2026-2027.

Labor Costs Are Rising, Not Falling

Solar installation is labor-intensive and location-dependent. Electricians, roofers, and solar technicians earn 15-25% more today than they did in 2018. Labor availability has tightened in many regions. Installers can’t reduce labor costs through efficiency gains the way manufacturers can with hardware. This is a hard structural cost that has nowhere to go but up.

Permitting and Administrative Overhead

Going solar requires permits from the local building department, utility interconnection agreements, potential HOA approval, inspections, and paperwork. This overhead adds 10-15% to the installed cost and is largely driven by local labor rates and regulatory complexity. There’s no technological reason this should get cheaper in the near future.

The ITC Is Still 30% Through 2032

A common reason people consider waiting is the fear that federal tax credits will expire. The 30% federal Investment Tax Credit (ITC) runs through the end of 2032 under the Inflation Reduction Act. For a $22,000 system, that’s a $6,600 credit. But 2032 is six years away. There’s no urgency to lock in the ITC—it’s available through 2032 for any system you install before then. The more relevant financial pressure is not the ITC schedule but the rising cost of the alternative: grid electricity.

The Real Cost of Waiting: Rising Electricity Rates

This is the overlooked side of the equation. While solar prices have stabilized, electricity rates continue climbing. The US average residential electricity rate rose from about 13 cents/kWh in 2019 to 17.5 cents/kWh in 2025—a 35% increase in six years. The trend is up: rates are expected to rise another 3-5% annually as utilities upgrade grids for electrification.

Here’s the real math: If you wait one year for a slightly cheaper solar system (maybe 2-3% savings), you’ll spend that year paying 4-5% more for grid electricity. That’s a net loss.

Example: A home using 10,000 kWh/year at $0.175/kWh pays $1,750/year in electricity. A 7 kW solar system saves about $1,200/year. If you wait one year and electricity rates rise to $0.184/kWh, your grid bill rises to $1,840/year. Meanwhile, the solar system price dropped 3%, saving you $700 on the installation. You lost $1,200 to higher electricity rates but saved $700 on hardware—a net loss of $500 from waiting.

Across a 25-year system lifespan, the impact compounds. Waiting one year costs you roughly $1,200-1,500 in higher electricity bills, and the solar system price has barely budged.

Battery Prices: The One Area Still Declining

While solar panels and installation costs have plateaued, battery prices are still declining. Battery storage (Tesla Powerwall, Enphase IQ, LG Chem) has dropped about 60% over the past decade and is forecast to decline another 20-30% over the next 5 years as EV battery manufacturing scales.

If you’re specifically considering adding battery storage, there’s a case for waiting 1-2 years. Batteries today cost $10,000-15,000 installed; in 2027-2028, they might cost $8,000-11,000. But this only matters if you definitely plan to add batteries. If batteries are optional, don’t let that delay your solar installation.

Why Panels Aren’t the Bottleneck Anymore

Here’s a useful mental model: Think of solar installation costs as 100 units. Today’s breakdown: hardware (panels, inverters, mounting, wiring) = 30 units. Labor and overhead = 70 units. In 2010, hardware was 60 units and labor was 40 units. Over the past 15 years, hardware got 20x cheaper, but labor got only 20-30% cheaper.

Because hardware is now such a small fraction of total cost, future reductions in hardware price have limited impact on the total system cost. Even if module prices fell another 50% (unlikely), your installed system cost would only drop 6-8%. The bottleneck is labor, permitting, and overhead, and those aren’t getting cheaper.

When Waiting Might Make Sense

You’re in California Under NEM 3.0

California’s net metering rules (since April 2023) significantly reduced export credits. For Californians, solar is less attractive now than pre-NEM 3.0. If you’re in California and batteries are part of your plan, waiting 1-2 years for battery prices to drop could improve your economics.

You’re Planning Major Home Upgrades Soon

If you’re about to replace your roof or install a heat pump, it makes sense to coordinate those projects with solar. You avoid taking the system apart for the roof replacement, and you can size solar to cover new consumption from the heat pump. Waiting 6-12 months to batch the projects makes sense, but not to hunt for cheaper panels.

Frequently Asked Questions

What if there’s a major breakthrough in solar panel efficiency?

Solar efficiency has improved steadily, but next-generation technologies like perovskite cells are still in research phases and won’t be mainstream for 5+ years. Even if a breakthrough happens, it would first target utility-scale farms, not residential roofs. Go solar now with today’s technology rather than betting on a future breakthrough.

Is the 30% federal tax credit going to expire soon?

No. The Inflation Reduction Act locked in the 30% federal ITC through December 31, 2032. You’re guaranteed 30% through 2032. There’s no urgency to install before a cliff—you have six years. The real urgency is electricity rates rising every year, not the ITC schedule.

Should I wait for battery prices to drop before going solar?

Only if batteries are essential to your plan. Batteries are still declining in cost—potentially 20-30% over the next 5 years. But if batteries are optional, don’t delay solar for that reason. Install solar now and add batteries later if the economics improve.

Could tariff changes make solar cheaper?

Possibly. Current US tariffs on solar modules add 10-15% to prices. If tariffs were reduced or eliminated, module prices could drop. But tariff policy is unpredictable. Make your decision based on today’s economics, not hopes for future policy changes.

What if I wait 3 years—is the savings bigger?

Unlikely to be worth it. Over three years, you might see 5-8% system cost reduction (optimistic), but you’ll pay 12-15% more in grid electricity. Over those three years, you’ll lose roughly $4,000-5,000 in higher electricity bills while saving maybe $1,500-2,000 on hardware—a net loss of $2,000-3,000. The math gets worse the longer you wait.

Are solar panel costs still falling in 2026?

Wholesale module costs are flat to slightly higher in the US due to tariffs. Global module prices are declining slowly due to oversupply, but tariffs and supply chain costs are keeping US prices elevated. There’s no clear trend of further cost reduction in 2026-2027. Plan on similar or slightly higher module prices in the near term.

Summing Up

The era of rapid solar cost declines is over. Module prices have collapsed 90% since 2010, but nearly all that benefit has been realized. Today, panels are cheap, and the bottleneck is labor, permitting, and overhead. Waiting another year or two for a 2-3% system cost reduction is a poor trade when electricity rates are rising 4-5% annually. You’ll lose more to higher grid bills than you’ll save on the hardware. The 30% federal tax credit is locked in through 2032, so there’s no urgency from that angle. The only exception: if you’re in California or another low-net-metering state and batteries are essential to your plan, waiting 1-2 years for battery prices to drop could improve your payback. But waiting on panels makes no financial sense.

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