Procurement answers for commercial greenhouse and agricultural equipment buyers
Greenhouse Procurement Answers: Lead Times, EPC Scope, Specs, Incoterms
Reference answers for commercial greenhouse and agricultural equipment procurement — lead times, EPC scope, technical specifications, supplier pre-qualification, payment milestones, Incoterms, installation, inspection and warranty.
Frequently asked questions
Five inputs decide almost everything else: crop and growing system, cultivated area and phasing, site climate extremes (temperature, humidity, wind and snow loads), water source and water analysis, and available electrical capacity. Structure type, covering, ventilation, screening, cooling, heating, irrigation, fertigation and automation follow from those inputs. Any of them left blank is filled in by each manufacturer with a different assumption, which is the usual reason two proposals for the 'same' greenhouse cannot be compared.
Structure and covering, foundations and civil works, ventilation, cooling and heating, screens, irrigation, fertigation equipment, water treatment, growing system or substrate, climate control and automation, electrical, energy and backup, packhouse and pre-cooling, then installation, commissioning, training and spare parts. Splitting the project this way exposes the packages a supplier has quietly excluded — civil works, electrical connection and water treatment are the three most often left out of a headline price.
Water quality versus fertilizer solubility, irrigation flow versus dosing capacity, fertigation controller versus climate computer, drain recirculation versus disinfection, greenhouse climate design versus crop assumptions, and imported equipment versus local civil and electrical works. Each sits between two contracts, so it is nobody's scope unless the RFQ names an owner for it.
Indicative planning ranges: net house USD 8–20/m², single-span polytunnel 25–50, multi-span mid-tech 50–120, Venlo glass 150–350, and semi-closed controlled-environment 300–600. Climate severity typically adds 5–35%, site works 15–30% and financing costs 8–15%. These are feasibility figures for budgeting only — binding pricing comes from suppliers once site data and specification are fixed.
When land control, water source and analysis, electrical capacity, crop plan, area, technology tier, budget band and target timeline are all documented, and one written specification exists that every supplier will quote against. Until then a requirement is scoped as 'early concept' or 'needs clarification' and is reviewed manually before anyone is contacted.
One private brief is submitted; a sourcing specialist reviews it manually, identifies the missing information and normalises it into a single written specification; qualified manufacturers, integrators and EPC contractors are approached only after that internal approval; returned offers are normalised to the same scope, lead time and delivery terms so they can be compared line by line. No supplier is contacted automatically and no buyer contact details are released automatically.
The questions procurement teams ask between feasibility and contract award, grouped by topic. Each answer leads with the conclusion, names the variables that change it, states the evidence a supplier needs before quoting, and marks what it does not settle.
Working with a sourcing partner
What a buyer-side sourcing partner adds, and what its supplier checks do and do not cover.
Why do buyers use an agricultural sourcing partner?
Mostly to save coordination effort and to make offers comparable. Finding suitable producers and manufacturers in other countries takes time, quotations arrive in different currencies, units, Incoterms and scopes, and price is only one of the questions: specification, commercial terms, availability, documentation, delivery conditions and risk all need checking. A buyer-side partner turns one confidential request into a structured process, widens the view of potential supply and surfaces open questions earlier. It cannot guarantee savings, supply, quality or exclusive access.
Read the reference answer →What supplier checks does a sourcing partner do?
Ask which kind of check it is. A document and profile review looks at company registration, technical scope fit, reference projects and the documents a supplier provides. An on-site audit, factory inspection, product test or seed-lot test is a different, separate service, usually done by the buyer, the supplier or an accredited third party. At SeedMatch Group, supplier qualification is the document and profile review only; inspections and laboratory tests are written into the RFQ when they are needed, and stock, prices, delivery windows and certifications are confirmed by the supplier for each RFQ.
Read the reference answer →Lead times and programme
How the schedule is built, what moves it, and which dates a supplier can actually commit to.
How long does a commercial greenhouse take from order to handover?
Treat the programme as four sequential blocks: specification and tendering, contract and design freeze, manufacture and shipment, then civil works, installation and commissioning. Each block has its own critical path, and the total depends on structure class, whether glass or film is used, the origin of the equipment, permitting, and how ready the site is. Suppliers can only commit to a date once the specification is frozen and the deposit terms are met, so a schedule quoted before design freeze is an estimate, not a commitment.
Read the reference answer →What actually drives agricultural equipment lead times?
Lead time is driven far more by specification stability, component origin and payment timing than by the supplier's willingness to hurry. Standard catalogue configurations ship from existing production runs; bespoke spans, non-standard voltages, custom controllers and special coatings enter engineering queues first. Split-origin packages inherit the longest single lead time plus consolidation. The fastest legitimate way to compress a programme is to reduce customisation, order long-lead items early as a separate package, and clear deposits without delay.
Read the reference answer →How should I plan logistics for an imported greenhouse or irrigation package?
Plan logistics as part of the technical scope, not after it. Establish cargo volume and dimensions, decide container versus breakbulk, confirm the port and inland route can handle the longest and heaviest pieces, appoint a clearance agent early, and align the arrival window with site readiness and crane availability. Equipment that arrives before the site can receive it generates storage, demurrage and damage costs; equipment that arrives after the installation crew does the same in labour.
Read the reference answer →EPC scope and contracting route
What a turnkey contract covers, where the owner's scope begins, and when packages beat EPC.
What is included in a turnkey agricultural EPC scope of work?
A turnkey EPC scope normally covers detailed engineering, procurement of the specified equipment, delivery to site, construction and installation, testing and commissioning, and handover with documentation and training. What it does not automatically cover is land, permits, site access, levelling, utility connections up to the site boundary, taxes and duties, and the crop programme. Every proposal must list inclusions, exclusions and owner-supplied items explicitly, because the gaps between them are where budget overruns are created.
Read the reference answer →Should I buy turnkey EPC or manage separate equipment packages?
Choose turnkey EPC when you want a single point of responsibility for interfaces and performance and you do not have an in-house project team. Choose package procurement when you have an experienced owner's engineer, want visibility on each package price, and can carry interface risk between structure, climate, irrigation and controls yourself. The decision is about who owns integration risk. Package procurement can look cheaper line by line while transferring coordination cost and schedule risk onto the owner.
Read the reference answer →What is normally the owner's scope on a greenhouse project?
The owner typically carries land and legal title, permits and approvals, site access and levelling, drainage, water source development and connection, grid connection to the site boundary, fencing and security, staff facilities, local taxes and duties, and the agronomic programme. These items are routinely excluded from supplier quotations, so a project budgeted only from supplier prices is understated. List owner scope explicitly in the responsibility matrix before comparing bids.
Read the reference answer →Technical specifications
How to write equipment and climate-control specs that produce comparable, bindable quotes.
What belongs in a technical specification for greenhouse equipment?
A usable specification states performance requirements and interfaces, not brand names. For each package define the duty (what it must achieve, under which ambient conditions), the physical and electrical interfaces, the applicable standards, the documentation required, the spare-parts and service expectation, and the test that proves compliance. If a bidder can meet your text with a materially different product, the text is not specific enough; if only one brand can meet it, the tender is not competitive.
Read the reference answer →How do I specify greenhouse climate control so quotes are comparable?
Specify the climate outcome and the design conditions, then let bidders propose the system. State the target internal conditions for the crop, the external design extremes, the acceptable number of hours outside target, the covered area and volume, and the energy source available. Ask each bidder to state the assumed ventilation rate, cooling or heating capacity, control strategy and expected energy consumption under those conditions. Without shared design conditions, a pad-and-fan quote and a mechanical cooling quote describe different projects.
Read the reference answer →How do I pre-qualify suppliers for a commercial agriculture project?
Pre-qualify on delivery evidence rather than presentation. Ask for comparable projects in a similar climate and scale, the engineering capability behind the product, manufacturing or integration footprint, service presence in your region, references you may contact, and the documentation the project or lender will require. A supplier that cannot produce reference projects at your scale, or has no realistic service route to your site, is a schedule and warranty risk regardless of price.
Read the reference answer →Incoterms, payment and delivery
Delivery terms, milestone structures and the risk transfer points behind an equipment price.
Which Incoterms should I use for greenhouse and irrigation equipment?
Choose the term by who is genuinely able to manage transport, insurance and customs at each stage — then require every bidder to quote on the same term so the prices are comparable. EXW and FOB leave freight, insurance and clearance with the buyer; CIF stops at the destination port; DAP and DDP push more responsibility to the supplier, with DDP also placing import duties and clearance on them. Multi-container structure shipments and single-crate control panels rarely deserve the same term.
Read the reference answer →What payment milestones are normal in agricultural equipment contracts?
Payment normally follows verifiable progress: an advance to secure engineering and production slots, one or more payments tied to manufacturing or shipment documents, a payment on delivery or installation progress, and a retention released after commissioning and the defect period. The principle to protect is that money should not run ahead of demonstrable progress, and that the final tranche should remain outstanding until performance tests pass. Exact percentages, securities and instruments vary by supplier, country and contract.
Read the reference answer →Installation, inspection and after-sales
Installation models, acceptance testing, warranty terms and spare-parts planning before handover.
Supervised installation or full installation by the supplier — which should I choose?
Supervised installation, where the supplier sends supervisors and the owner provides local crews, lowers cost and builds local capability but requires competent, available labour and clear productivity assumptions. Full installation by the supplier's own crews reduces owner risk and usually shortens the erection period, at higher cost and with visa, accommodation and mobilisation implications. The decision should follow local labour availability and how the warranty treats workmanship in each case.
Read the reference answer →How do inspection and acceptance testing work on agricultural equipment orders?
Build three checkpoints into the contract: inspection before shipment against the packing list and datasheets, arrival inspection with a documented damage protocol, and functional acceptance testing at site against a written test protocol agreed in advance. Each checkpoint should have named responsibility, an evidence format and a consequence — usually the release of a payment milestone. Testing agreed after delivery tends to become a negotiation rather than a test.
Read the reference answer →What warranty and after-sales terms should I require from equipment suppliers?
Require terms that are specific rather than generous-sounding: warranty duration per component group, what is covered and what is consumable, the start trigger (delivery, commissioning or handover), the response and repair commitment for your location, who pays for travel and freight of replacement parts, and how claims are documented. A long warranty with no service route to your site is worth less than a shorter one backed by regional engineers and parts stock.
Read the reference answer →How do I plan spare parts and maintenance for a new agricultural facility?
Plan maintenance during procurement, not after handover. Ask each supplier for the preventive maintenance schedule, the consumables list with intervals, a recommended critical-spares holding for your location, and the lead time for each spare. Prioritise stock by consequence: items whose failure stops irrigation, ventilation or climate control during a crop cycle justify holding cost, while slow-degradation items can be ordered on demand.
Read the reference answer →Working on a live project? Start an RFQ and a sourcing specialist will structure the package with you, or model the budget with the CAPEX calculator.
Maintained by the SeedMatch Group editorial team. See our editorial standards and facts & sources.