LightWave Solar
- Tennessee veteran installer: 1,500+ systems and 100+ MW since 2006
- 9 NABCEP-certified professionals on an 80+ person team
- Founding member of the Amicus Solar Cooperative
- Residential and commercial battery storage offered
Tennessee is where solar sales pitches go to get audited. Every utility in the state buys power through TVA, there is no retail net metering, and exported solar earns roughly 3 to 6¢ per kilowatt-hour against 11 to 12¢ retail. A typical system's surplus is worth about $52 a year here, not $500. Solar still works in Tennessee, but only sized to what your house actually uses. EcoGen America gives you that math before an installer gives you theirs.
Get your feasibility score, cost estimate & installer matches.
Tennessee has no retail net metering and will not pretend otherwise. The Tennessee Valley Authority supplies every local power company in the state, and surplus rooftop solar is compensated near TVA’s avoided cost, roughly 3 to 6¢/kWh depending on program and utility, while the retail power you avoid buying costs 11 to 12¢.
Run that on a real roof: a 10 kW Murfreesboro system exporting 1,500 kWh a year earns about $52 in credits. The same exports under a true retail net-metering state would return roughly $172. Nobody gets rich selling power back in Tennessee.
Which is exactly why the state is clarifying: the only number that matters is how much of your own consumption the system displaces. Sized to daytime usage, Tennessee solar pays back on avoided retail power and decent regional install pricing. Sized to impress, it manufactures 4¢ exports.
EcoGen America models the self-consumption case honestly and matches you with installers who build to it.
Installers working under TVA-territory rules every week, from Memphis to the Tri-Cities, licensed in Tennessee.
Built-in checks for net-metering language that does not apply here, oversized arrays and export income quoted at fantasy rates.
Our models price exports at TVA-era avoided cost, a few cents, so the payback you see is the one you get.
Your information goes only to the installers you choose to hear from. Nothing is resold.
EcoGen is 100% free for homeowners. We earn a small referral fee from installers only when you choose to proceed with a project through our platform.
This fee comes from the installer’s marketing budget and does not increase your system price. In fact, our pre-negotiated rates often save you money compared to going direct.
One concrete roof, so the stakes are visible. A 10 kW system in Murfreesboro sending 1,500 kWh a year back to the grid:
Compensation Regime | Export Value | Annual Income on 1,500 kWh |
|---|---|---|
Tennessee (TVA avoided cost) | ~3 – 6¢/kWh | ~$52 |
A true retail net-metering state | ~11.5¢/kWh | ~$172 |
Power you never export (self-consumed) | Full retail avoided, 11 – 12¢/kWh | The entire business case |
Read the third row twice. Tennessee solar is not a power-selling business; it is a power-not-buying business. Every design decision follows from that.
Pull 12 months of bills from your local power company. Your daytime usage, not your roof size, sets the right system.
Insist on a projection that prices exports at avoided cost, a few cents, and self-consumption at retail. If those two rates match, the model is wrong.
Choose installers who build self-consumption systems in TVA territory routinely and can show local interconnections to prove it.
Free 15-minute call. TVA rules, honest export math, right-sized answer.
In a 4¢-export state, the disqualifiers do more work than the sales pitch. Walk away, or wait, if:
Steady daytime load, clear roof, honest sizing: that homeowner still does well in Tennessee, and knows exactly why.
Tennessee Contract Checks
TVA territory has no room for optimistic paperwork. Apply these four tests to any quote.
The projection should price surplus power at a few cents, not at retail. This single line exposes most bad Tennessee quotes.
System production should track your annual usage, weighted to daytime. Overshoot is money spent making 4¢ power.
Every local power company handles interconnection its own way under TVA. Recent local hookups are the credential.
With no credits to hide behind, dealer fees show up fast in Tennessee financing. The cash anchor keeps it visible.
Four tests, any Tennessee quote. Honest installers pass them in one sitting.
Vetted for Tennessee licensing, TVA-territory interconnection experience and complaint history.
Tennessee”s program history confuses buyers because the good one is gone. The current state of play:
If a pitch cites a Tennessee program by name, date it. The ones that paid well are closed; the ones that are open pay avoided cost.
Priced against the honest band, with exports at avoided cost, not fantasy.
15 minutes, independent. Usage, exports, interconnection, verdict.
Talk to a Tennessee AdvisorNo obligation. 100% free service.
No. Every Tennessee utility operates under TVA, and surplus rooftop solar is compensated near avoided cost, roughly 3 to 6¢/kWh, rather than the retail rate.
That single fact drives every good Tennessee solar decision: size to what you use, not to what you could export.
Little, by design. A 10 kW system exporting 1,500 kWh a year earns around $52 in credits at avoided-cost rates; the same exports would return about $172 under retail net metering elsewhere.
The real value is the 11 to 12¢ retail power your system keeps you from buying.
For the right house, yes. Steady daytime usage, a clear roof and honest sizing let a system pay back on avoided retail power alone at decent regional install prices.
For low-usage households without battery budgets, the math is thin, and a straight adviser says so.
It closed to new applicants years ago. Systems enrolled during the program keep their contract terms, but no comparable retail-rate program exists for new Tennessee installations.
Current surplus power falls under dispersed-power arrangements near avoided cost.
No state income-tax credit exists, and the federal residential credit ended in December 2025.
A 2026 Tennessee quote listing tax credits is out of date; ask for the projection without them.