Controlled environment agriculture (CEA)

Controlled environment agriculture (CEA) grows crops inside greenhouses and plant factories where light, temperature, humidity, CO2 and nutrients are engineered rather than left to the weather. Signify’s Philips GreenPower LED toplighting ships in Performance and Elite variants; Heliospectra’s ELIXIA C5 is a 700 W, five-channel tunable system; Priva’s Connext 916 steers LED output to exact target levels in µmol/s/m²; Certhon builds integrated greenhouses with geothermal-ready heat and ErfGoed floors; and IUNU’s LUNA AI combines plant-level computer vision with Priva One climate data to forecast yields one to eight weeks ahead. This article covers the CEA technology-and-infrastructure layer — the urban vertical-farm operators and food-security framing are treated in the sibling IND-091 and IND-092 entries.

The key directions of CEA technology are:

1. Horticulture LED grow lighting (Horticulture LED Grow Lighting): tunable-spectrum LED toplighting (Signify Philips GreenPower, Heliospectra ELIXIA C5 with five channels) delivering precise photons per crop stage.
2. Greenhouse climate & fertigation control (Greenhouse Climate & Fertigation Control): environment controllers (Priva Connext 916) steering temperature, humidity, CO2 and light in µmol/s/m².
3. CEA facility design & construction (CEA Facility Design & Construction): integrated greenhouse and plant-factory builds (Certhon) with geothermal heat, advanced insulation and automation.
4. AI crop monitoring & yield forecasting (AI Crop Monitoring & Yield Forecasting): computer-vision crop sensing (IUNU LUNA) fused with climate data to forecast yields 1–8 weeks ahead.

Sectoral value chain#

[facility & lighting] ──> [climate & fertigation] ──> [crop sensing & AI] ──> [growth optimization]
                                   │
                           (steer the growing environment)
                                   │
                                   ▼
[operations & data] <─── [harvest / yield forecasting] <─────┘

Value chain levels#

Cross-cutting technologies of the sector:

• Tunable horticulture LED (Tunable Horticulture LED): multi-channel spectra (blue, red, far-red, white) dimmed via PWM to deliver exact photon levels per crop stage.
• µmol/s/m² environment control (µmol/s/m² Environment Control): steering light, CO2, temperature and fertigation to measured target levels rather than percentages.
• Computer-vision crop monitoring (Computer-Vision Crop Monitoring): plant-level cameras and AI turning visual growth into yield forecasts and stress alerts.

The stack pairs tunable lighting and climate control with AI crop sensing.

1. Tunable horticulture LED lighting (Tunable Horticulture LED Lighting):
   • Signify’s Philips GreenPower toplighting offers Performance and Elite variants balancing upfront cost with long-term efficiency for professional greenhouses.
   • Heliospectra’s ELIXIA C5 delivers 700 W across five independently tunable channels (blue, red, far-red, two white) with PWM 0–100% dimming.
2. Climate and fertigation environment control (Climate & Fertigation Control):
   • Priva’s Connext 916 steers LED output to exact target levels in µmol/s/m² and converts legacy percentage recipes to spectrum-enabled ones.
   • Certhon integrates these controls into fully built facilities with geothermal-ready heat, advanced insulation and renewed automation environments.
3. AI crop monitoring and yield forecasting (AI Crop Monitoring & Yield Forecasting):
   • IUNU’s LUNA AI fuses plant-level computer vision with Priva One climate-execution data to forecast yields one to eight weeks ahead.
   • The integration turns what-happened-vs-planned climate records into actionable, plant-level growth and stress insight.