Case Study: Horticulture Grow Facility LED Retrofit
Cut energy, reduce cooling load, improve light quality and safety, and unlock rebates.
Client Overview
- Industry: Indoor Horticulture / Grow Facility
- Facility Size: 30,000 sq ft
- Utilities: DTE Energy & Consumers Energy
- Vegetative Room: 40× 1,000W HPS → 40× 600W LED
- Flowering Room: 60× 1,000W HPS → 60× 600W LED
Annual Energy Use
HPS total: 525,600 kWh
LED total: 315,360 kWh
Savings: 210,240 kWh/yr
≈ $29,433/yr (@ $0.14/kWh)
≈ $29,433/yr (@ $0.14/kWh)
Cooling Load Reduction
Veg HPS: 13.6 tons | Flower HPS: 20.5 tons
LED combined load: ~21.1 tons (≈ 13-ton reduction)
$12,000–$15,000/yr
Estimated HVAC savings
Estimated HVAC savings
Legacy HPS
- Fixture cost: $25,000–$30,000
- Bulb replacement: ~ $6,000/yr
- Warranty: ~2 years
- Maintenance: High
LED Retrofit
- Fixture cost: $65,000–$85,000 (100 fixtures)
- No bulb/ballast replacements
- Warranty: ~5 years
- Maintenance: Minimal
Vegetative Stage
- Lower PPFD, less stretch
- Tunable spectrum for healthy starts
Flowering Stage
- High PPFD, deep canopy penetration
- Enhanced terpene/resin development
- Dimming during pre-flower/stretch
40–60% energy reduction • Cooler temps → HVAC savings • Longer lifespan • No mercury
Utility Rebates
DTE Energy: Up to $500/fixture, HVAC reduction bonus, prescriptive/custom options.
Consumers Energy: Up to $500/fixture.
Example: 100 fixtures × $250 avg rebate = $25,000 back
ROI Snapshot (100 Fixtures)
- LED Fixture Cost: ~ $70,000
- Utility Rebate: ~ $25,000
- Net Project Cost: ~ $45,000
- Annual Energy + HVAC Savings: ~ $42,000
~13 months
Simple Payback
Simple Payback
We would Love to Make Your Facility Our Next Case Study!
Ready to see if LED retrofits make sense for your facility?
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We'll Provide Energy & Cost Saving Estimates, Calculate Utility Incentive/Rebates & Assess Your Best-Fit LED Solution!