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Grow Light Rebates in 2026: How Horticulture LED Rebates Work and How to Qualify

Writer: Grower's Choice AG
Grower's Choice AG
Nov 4
6 min read

Updated: 24 hours ago

If you are replacing HPS or building out a new flower room, your electric utility may pay part of the bill for your LED fixtures. These horticulture LED rebates, also called grow light rebates or horticultural lighting incentives, mostly come down to the same three requirements: the fixture has to be on the DesignLights Consortium (DLC) Horticultural Qualified Products List, it has to clear a minimum efficacy in µmol/J, and you usually have to be pre-approved before you buy or install anything. Miss the last one and you can lose the whole rebate.

This guide explains how the programs pay, what they check, and the steps that keep a rebate from falling through. Amounts and rules change every year, so always confirm the current program with your utility before you order.

How horticulture LED rebates pay: per watt, per fixture or per kWh

Utilities pay horticultural lighting rebates in one of three ways.

  • Per watt. You get a fixed amount per watt of qualifying LED. Xcel Energy's Minnesota grow lighting application, for example, lists $0.70 per watt installed with a minimum efficacy of 1.8 µmol/J; for invoices dated 2024 or later, Xcel no longer pays a different rate for DLC and non-DLC fixtures. Smaller Minnesota growers (flower and veg rooms totaling 8,000 sq ft or less) can instead use CEE's One-Stop Efficiency Shop, which lists 2026 rates of $0.85 to $1.06 per watt depending on PPE.

  • Per fixture. You get a fixed amount per fixture, banded by wattage and application. Southern California Edison's Agriculture Energy Efficiency (AgEE) program lists $14 to $105 per fixture for 2026 indoor horticulture LEDs, PG&E's AESAP lists $9 to $70 per fixture, and Wisconsin's Focus on Energy 2026 agribusiness catalog lists $90 to $210 per fixture when an LED replaces HID.

  • Per kWh saved. The utility models your old and new systems and pays on the annual energy saved. Puget Sound Energy in Washington pays up to $0.20 per annual kWh saved on lighting retrofits, capped at 70% of project cost, and calculates savings from the photosynthetic photon efficacy (PPE) of the LEDs you install. Higher µmol/J usually means a bigger incentive.

Many programs also cap the rebate at a share of the project cost. Focus on Energy and East Central Iowa REC both cap at 50%.

What your fixture needs to qualify

1. A DLC Horticultural listing

Almost every program uses the DLC Horticultural QPL as its eligibility list. DLC's current requirements, Horticultural V4.0, took effect for new applications on April 18, 2025, and raised the minimum PPE to 2.5 µmol/J. V3.0 products that did not meet the new bar were scheduled for delisting on January 5, 2026, so a fixture that was listed two years ago may not be listed now. Check the exact model number, not just the brand.

2. A minimum efficacy, which may be higher than DLC's

Some utilities set their own floor above DLC's. SCE's AgEE program in California requires DLC Horticultural V4.0 (or later) and a PPE of at least 3.24 µmol/J for 2026, and it has already published a higher floor of 3.38 µmol/J for 2027. That rules out many listed fixtures. As an example from our own line, the AG-140 under canopy bar in R80 Red is rated 3.25 µmol/J and clears the 2026 bar; the 3K Full Phase version is rated 3.0 µmol/J and does not, and neither reaches the 2027 floor. Choosing the spectrum with the rebate rule in front of you can be worth real money.

3. Electrical requirements

Some programs check power quality as well as efficacy. LADWP's BOSS program, for example, requires horticultural LEDs to be DLC listed and also to have a power factor of at least 0.9 and total harmonic distortion of 20% or less. A DLC listing alone is not enough if the tested values miss those limits.

4. Pre-approval before you buy

This is where most rebates are lost. PSE requires pre-approval before installing any measure. Xcel Energy's Minnesota prescriptive grow lighting rebate is an exception: you apply after the lights are installed. Focus on Energy requires a signed incentive agreement for its grow-light-system path, and that path also asks for two lighting designs, an HID or fluorescent option and an LED option with equivalent PPFD, showing at least a 30% reduction in kWh. If your utility wants pre-approval, apply before the purchase order goes out.

The paperwork, step by step

  1. Find your program. Search your utility's business or agricultural incentives page for "horticultural lighting" or "grow lights", or call your account rep. Note whether it pays per watt, per fixture or per kWh, and any cost cap.

  2. Confirm the exact model on the DLC QPL. Print or save the listing as a PDF. Many applications ask for it.

  3. Check the program's own µmol/J floor and any power factor or THD rules against the spec sheet.

  4. Get a lighting layout. Per-kWh and system programs want fixture counts, wattage and target PPFD, and some want a before-and-after design. A photometric light plan gives you this on paper.

  5. Apply for pre-approval with spec sheets, the QPL listing and the layout.

  6. Buy and install only after approval, keeping invoices and serial numbers.

  7. Submit the final claim, often with photos or a site inspection, by the program's deadline.

A worked example

Take a room in Xcel Energy's Minnesota territory adding under canopy light with 20 AG-140 R80 Red bars. Each bar draws 140 W, so the project totals 2,800 W. At Xcel's listed $0.70 per watt installed, that is about $1,960 back, provided the project meets the program's terms. Xcel caps the rebate at 60% of project cost, including labor; 20 bars at our $139 price are $2,780 before cords and labor, so the cap can limit the rebate and is worth checking. The same bars in another territory could earn a per-fixture amount, a per-kWh amount, or nothing at all, which is why the program check comes first.

What we do to help

Our fixtures are ETL listed, and both AG-140 spectrums (R80 Red and 3K Full Phase) are DLC listed. Every quote starts with a free light plan that includes a rebate check for your utility. We'll tell you which program applies, whether the model you're considering meets its efficacy floor, and what the paperwork needs. The decision on whether to apply, and the application itself, stay with you and your utility.

Browse under canopy lights, see the AG-140 Under Canopy LED Kit, or read how a 1:1 HPS swap pays back in TSL-800 vs 1000W HPS.

Want to know what your room qualifies for? Ask for a free light plan and rebate check.

Sources

All program figures re-checked November 9, 2026.

FAQ

Do LED grow lights qualify for utility rebates?

Often, yes. Many electric utilities pay rebates on LED grow lights for commercial customers, usually if the fixture is on the DLC Horticultural QPL, meets the program's minimum µmol/J, and the project is pre-approved before installation.

What is the minimum efficacy for a DLC horticultural listing?

Under DLC Horticultural V4.0, effective April 18, 2025, a fixture needs a PPE of at least 2.5 µmol/J. Some utilities set a higher floor; SCE's 2026 AgEE program in California requires 3.24 µmol/J, rising to 3.38 µmol/J in 2027.

Can I get a rebate after I've already bought the lights?

Sometimes. Xcel Energy's Minnesota prescriptive grow lighting rebate is claimed after installation, but many programs, including PSE's and Focus on Energy's grow-light-system path, require pre-approval before installation. Check your program's rules before you order.

How much is a grow light rebate worth?

It depends on the program. Published examples range from $9 to $210 per fixture, $0.70 per watt installed in Xcel Energy's Minnesota program, and up to $0.20 per annual kWh saved at PSE, usually with a cap on the share of project cost.

What are horticulture LED rebates?

They are utility incentives for commercial growers who install efficient LED grow lights. Programs pay per watt, per fixture or per kWh saved, and most require a DLC Horticultural listing, a minimum µmol/J and, often, pre-approval.

Does Grower's Choice file the rebate for me?

We prepare what the application needs: spec sheets, the DLC listing and a lighting layout with your free light plan. You submit the application to your utility.

 
 
 

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