Commercial Horticultural Lighting Grants

Get PSE incentives for upgrades at your horticultural grow facility

LED grow lights have proven themselves to be a more efficient and reliable alternative to other grow lighting technologies. Whether you are growing cannabis, lettuce, or some other crop, PSE has incentive programs for installing energy-efficient LED grow lights.

What you get

PSE horticultural lighting incentives provide up to $0.15 per kilowatt-hour (kWh) of annual energy savings.

  • For new construction, energy savings will be calculated using the Photosynthetic Photon Efficacy of the proposed LEDs. This means you are likely to receive a higher incentive when installing a LED fixture with a higher umol/J rating.
  • For retrofit, PSE will compare the true existing lighting to the proposed LED system. Existing lighting must be confirmed by PSE before the work begins.


Depending on whether you are installing lights in a new area, or replacing existing lights, the incentives are:

Retrofit Up to $0.15/kWh saved annually, which can be up to 70 percent of the full cost of the installation
New Construction Up to $0.15/kWh saved annually, which can be up to 100 percent of the incremental cost difference between a hypothetical industry standard baseline and the proposed LEDs

How you qualify

To be eligible for PSE's horticultural lighting grants:

  • You must be a PSE commercial or industrial electric customer
  • Lights must be illuminating indoor or greenhouse plant canopy
  • You must install LED fixtures that are listed on the Design Lights Consortium Horticultural Qualified Products List
  • You must be pre-approved by PSE prior to the installation of all energy efficiency improvement measures

How you apply 

To get pre-approved, please submit the following to

  • Signed PSE Custom Grant Application
  • PSE Horticultural Lighting Calculator (Retrofit or New Construction)
  • Manufacturer's specification sheets for the proposed LED grow lights
  • PDF Printout of LED product listing from the Design Lights Consortium
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Ask an Energy Advisor

For more specialized information about horticultural incentives, email

Have a non-lighting horticultural efficiency upgrade in mind? Consider applying for a custom grant. Follow the links below for more information.

Commercial Retrofit Program
Commercial New Construction Program