What crops can be grown in a vertical farm?

Commercially, mainly lettuce, leafy greens, herbs, microgreens and propagation material — short-cycle, low-height, high-value crops. Strawberry and some specialty crops work in specific markets. Tall fruiting crops and staple crops are generally not viable indoors.

Is vertical farming profitable?

It can be where electricity is affordable, the crop sells at a premium and volume is contracted. Profitability is decided mainly by energy cost and selling price, so both should be modelled before equipment is selected. No supplier can guarantee a return.

How much electricity does a vertical farm use?

Consumption is driven by installed lighting load, photoperiod and the cooling needed to remove that heat. Because lighting energy largely becomes heat, cooling scales with lighting. The figure should be calculated from the crop's light requirement and the planned growing area rather than taken from a benchmark.

Is a vertical farm better than a greenhouse?

Not inherently. A greenhouse uses free sunlight and is normally cheaper to run for the same crop. A vertical farm wins where land is unavailable, the outdoor climate is hostile year-round, or consistency, biosecurity and proximity to the buyer carry a premium. Model both for the same crop before deciding.

How much does a vertical farm cost to build?

Cost varies widely with building type, tier count, lighting specification, HVAC duty and automation level, and whether the building itself is in scope. Define the layout and targets first, then request quotations against one specification so the offers are comparable.

Do vertical farms use a lot of water?

Net water use is usually low. Transpiration is high, but a sealed building allows condensate to be recovered from the dehumidification system and returned to the nutrient loop, so consumption per kilogram of produce is typically far below field production.

Can an existing warehouse be converted?

Often yes, subject to ceiling height, floor loading, insulation, drainage and — most critically — available electrical capacity. A power capacity check should be carried out before any lease or purchase is committed.

What should a vertical farm quotation include?

Racking and growing system, lighting specification with efficacy and photon flux, HVAC and dehumidification duty, fertigation and water treatment, controls and monitoring, automation scope, installation and commissioning, training, warranty, and an explicit list of exclusions such as building works, power connection, cold storage and packing equipment.

PILLAR GUIDE

Vertical Farming: When a Stacked Indoor Farm Is the Right Investment

Vertical farming replaces sunlight with electric light and stacks production in layers inside an insulated building. It gives complete control over climate, removes weather risk and produces close to the consumer — and it does so at a level of energy consumption and capital intensity that only certain crops and certain markets can carry.

This guide sets out where a vertical farm is justified, what actually drives its cost, and how to specify one so that quotations can be compared on the same basis.

Start a project brief Message a sourcing specialist

When does vertical farming make commercial sense?

Vertical farming makes commercial sense where a high-value, short-cycle, low-height crop is sold into a market that pays a premium for consistency, freshness or local supply, and where electricity is reliable and reasonably priced. Leafy greens, herbs, microgreens and propagation material are the crops that normally justify it. The economics are driven by lighting and cooling energy, capital cost per square metre of growing area, and labour, so the decision should be tested against a total cost of ownership model before any supplier is approached — and compared with a greenhouse option for the same crop.

Crop range is narrow: short-cycle, low-height, high-value crops.
Energy for lighting and cooling is the dominant operating cost.
Capital cost per square metre is far higher than a greenhouse.
Yield per building footprint is high; yield per unit of energy is not.
A greenhouse comparison should be run before committing to vertical.

What a vertical farm is

A vertical farm is a fully enclosed production facility where crops are grown on stacked layers under electric light, with the climate — temperature, humidity, CO₂ and airflow — held within narrow bands. Natural light plays no part, so the building envelope is designed for insulation and hygiene rather than light transmission.

Because every environmental input is supplied artificially, output is predictable and largely independent of season or weather. The trade is that every input must also be paid for.

Fully enclosed, insulated building with controlled access
Stacked growing layers, usually hydroponic
Electric lighting as the only light source
Mechanical climate control, dehumidification and CO₂ management

Which crops are viable

Viability is a function of plant height, cycle length and sale value. Short, fast, valuable crops make the layer economics work; tall or long-cycle crops do not, because each layer of height costs lighting, structure and conditioned volume.

Fruiting crops such as tomato, pepper and cucumber are grown commercially in greenhouses, not usually in vertical farms, because the plant is tall, the cycle long and the light requirement far higher.

Usually viable: lettuce, leafy greens, herbs, microgreens, propagation material
Sometimes viable: strawberry and selected specialty crops, in specific markets
Rarely viable: tall fruiting crops, staple crops, anything sold at commodity prices
Always test against the price the market actually pays, not a target price

Lighting drives everything

Lighting sets the crop's growth rate, the electrical load and, indirectly, the cooling requirement, because most of the energy delivered ends up as heat that has to be removed. Fixtures should be compared on efficacy in µmol/J, on photon flux at canopy level and on uniformity — not on wattage or unit price.

Photoperiod strategy also matters commercially. Running lights during off-peak tariff hours can change the operating cost materially where time-of-use pricing applies.

Target daily light integral per crop and layer
Installed µmol/m²/s and uniformity across each layer
Fixture efficacy in µmol/J and output depreciation over time
Electrical load, connection capacity and tariff structure
Dimming, spectrum control and photoperiod scheduling

HVAC, humidity and water recovery

A vertical farm is a sealed box producing heat and water vapour continuously. The HVAC system must remove lighting heat, control humidity within a narrow band and maintain airflow through every layer, including the layers in the middle of a rack where air moves least.

Dehumidification is also an opportunity: condensate can be recovered and returned to the nutrient system, which is why well-designed indoor farms use very little net water despite high transpiration.

Cooling capacity sized to full lighting load plus building gains
Dehumidification capacity matched to peak transpiration
Airflow designed per layer, not per room
Condensate recovery and treatment before reuse
CO₂ supply, distribution and safety systems

Racking, growing system and automation

Most vertical farms use NFT channels, deep-water rafts or ebb-and-flow trays on multi-tier racking. The choice determines irrigation frequency, cleaning routines and how easily trays can be moved.

Automation is where budgets diverge sharply. A manual farm has lower capital cost and higher labour cost; a fully automated farm reverses that. Neither is inherently right — it depends on labour cost, availability and the scale of production.

Racking height, tier spacing and access method
Growing system: NFT, raft or ebb and flow
Seeding, transplanting and harvest automation level
Tray movement, washing and sanitation
Hygiene zoning, gowning and pest exclusion

What the economics really depend on

Capital cost is concentrated in the building or fit-out, racking, lighting, HVAC, the growing and fertigation system, automation and controls. Operating cost is dominated by electricity, then labour, then nutrients, packaging, seed and maintenance.

Two numbers decide most projects: the delivered cost of electricity, and the price the market pays for the crop. If either is unfavourable, no equipment choice rescues the model. Test them first.

Delivered electricity cost, including demand charges and tariff structure
Realistic achievable selling price and contracted volume
Capital cost per square metre of growing area, not floor area
Labour cost and availability against the chosen automation level
Depreciation and replacement of fixtures, sensors and equipment

Vertical farm or greenhouse?

For most crops in most locations, a modern greenhouse produces the same crop with a fraction of the energy input, because sunlight is free. A vertical farm earns its place where land is unavailable or extremely expensive, where the outdoor climate is hostile year-round, where biosecurity or consistency commands a premium, or where proximity to the consumer has real commercial value.

The honest test is to model both options for the same crop, the same volume and the same market, then compare total cost of ownership over five to ten years.

Greenhouse: lower energy, larger footprint, weather-linked variability
Vertical: higher energy and capital, small footprint, tight consistency
Hybrid: propagation indoors, production in a greenhouse, is often the pragmatic answer
Model both before committing to either

Specifying a vertical farm in an RFQ

Vertical farm quotations are notoriously hard to compare because suppliers divide the scope differently: some quote turnkey including the building, others only the growing equipment, others only the lighting and racking.

A structured RFQ states the crop and volume, the growing area and tier count, the lighting and climate targets, the automation level and, critically, which parts of the building, power and cold chain are inside or outside the scope.

Crop, cycle length and target volume per week
Growing area, number of tiers and tier spacing
Target DLI, photoperiod and installed lighting load
Climate set-points, cooling and dehumidification duty
Growing system and irrigation strategy
Automation level for seeding, movement and harvest
Building, power connection, cold chain and packing — included or excluded
Commissioning, training, support and warranty

How SeedMatchGroup works on vertical farm projects

SeedMatchGroup is a human-led platform for commercial agricultural projects. A sourcing specialist reviews the project, helps convert requirements into a structured RFQ and approaches qualified independent suppliers with the same document, so responses can be compared line by line.

We do not sell equipment, build facilities or guarantee yields or returns, and supplier identities stay with us until a project has been reviewed.

Project review before suppliers are approached
One RFQ, issued on the same basis to every supplier
Scope gaps identified before quotations are compared
All supplier communication runs through SeedMatchGroup

Vertical farm project checklist

Answer these before requesting quotations.

Crop list, cycle length and target weekly volume
Confirmed buyer or route to market, with realistic pricing
Building: existing, converted or new-build
Floor area, ceiling height and achievable tier count
Electricity supply capacity, reliability and tariff structure
Target daily light integral and photoperiod per crop
Installed lighting load and fixture efficacy requirement
Cooling and dehumidification duty
CO₂ supply and safety arrangements
Water source, quality and condensate recovery
Growing system and racking configuration
Automation level and labour plan
Hygiene zoning and biosecurity requirements
Packing, cold storage and dispatch
Control, monitoring and data requirements
Commissioning, training and support
Capital budget band and financing route
Operating cost model including energy
Phasing and expansion plan
Permits, food-safety certification and compliance

Vertical farm compared with greenhouse production

Indicative comparison for the same leafy crop. Real figures depend on site, climate and design.

Factor	Vertical farm	High-tech greenhouse	Why it matters	Where to check
Light source	Electric only	Sunlight plus optional supplement	Determines the energy bill	Lighting and energy calculators
Energy intensity	High	Moderate	Usually the deciding cost	Operating cost calculator
Capital per m² of growing area	High	Moderate	Drives payback period	TCO calculator
Crop range	Short, low-height crops	Wide, including vine crops	Limits the business model	Crop and market plan
Output consistency	Very high	High, with seasonal variation	Matters for retail contracts	Offtake agreement

Model it before you buy it

Vertical farming decisions are won or lost in a spreadsheet before any equipment is quoted. Estimate lighting load, energy consumption, water demand and total cost of ownership, and run the same exercise for a greenhouse alternative.

Use the energy, operating cost, hydroponic fit-out and total cost of ownership calculators, then carry the outputs into the RFQ builder.

The order that works

Test the economics before selecting technology.

1Confirm the crop, buyer and achievable price
2Confirm electricity capacity, reliability and tariff
3Model energy, capital and operating cost
4Compare against a greenhouse option for the same crop
5Fix the layout, lighting and climate targets
6Write one structured RFQ
7Compare complete solutions, then select suppliers

Stop and resolve these first

These issues sink vertical farm projects more often than technology choices.

No confirmed buyer or an assumed price the market does not pay
Electricity that is unreliable, capacity-limited or expensive
A crop chosen for novelty rather than for margin per layer
A building without the height, floor loading or power to support the design
No operating cost model — only a capital budget

What SeedMatchGroup does and does not do

We prepare structured RFQs and compare supplier responses.
We do not sell equipment, construct facilities or supervise installation.
We do not guarantee yields, energy costs, prices or returns.
Supplier identities are not shared before a project review.
All communication with suppliers runs through SeedMatchGroup.

Where vertical farming is being considered

Local conditions, not technology trends, decide whether it works.

Gulf states: Hostile outdoor climate and import dependence support indoor production where power is affordable.
Island economies: High freight cost and short shelf life on imported greens can justify local indoor supply.
Northern Europe: Winter light scarcity favours indoor propagation; full production competes with efficient greenhouses.
Dense urban markets: Proximity and consistency matter to retail buyers, but property cost must be tested carefully.

Planning observations only; each site must be modelled on its own numbers.

Who this guide is for

Written for commercial projects, not home systems. SeedMatchGroup works on projects from USD 250K upwards.

Operators supplying retail or food service with leafy greens and herbs
Projects in cities, islands or regions with limited arable land
Propagation and young-plant businesses considering indoor production
Investors and development programmes assessing indoor farming proposals

What this guide covers

The decisions that determine whether a vertical farm works.

Which crops are viable and which are not
Lighting, energy and heat load
HVAC, dehumidification and water recovery
Racking, growing system and automation
Capital and operating cost structure
Vertical farm versus greenhouse for the same crop
How to specify a vertical farm in an RFQ

Vertical farming — frequently asked questions

Test the model, then approach suppliers

Send the crop, location, target volume, building situation and power availability. A sourcing specialist reviews the project and helps structure the RFQ before any supplier is approached.