Greenhouse heating energy and climate-control cost scenario
Answer first: transmission heat loss Q (kWh) = U (W/m²·K) × cover area (m²) × ΔT (K) × hours ÷ 1,000. Purchased energy = Q ÷ system efficiency; cost = purchased energy × your tariff.
Method and assumptions
U-value, ΔT, hours, efficiency and tariff are your inputs; use the covering supplier's U-value and climate data for your site. The scenario covers transmission losses only — it excludes air leakage, ventilation, solar gain, screens and cooling, so a climate engineer must confirm the design load.
Formula source: Steady-state transmission heat loss Q = U × A × ΔT (standard conduction relation; see ASHRAE Handbook — Fundamentals). Excludes air-leakage/ventilation, solar gain and cooling loads.
SeedMatchGroup reviews commercial agricultural projects from USD 250,000. Buyers submit requirements to us; we review them before deciding whether to approach independent suppliers and normalise any bids. We do not connect buyers directly with manufacturers.
Next steps
Questions
- How do I estimate greenhouse heating energy?
- Multiply the cover U-value by the cover area, the average temperature difference and the heating hours, then divide by 1,000 for kWh.
- Why do I need my own tariff?
- Energy tariffs differ by country, contract and date; the tool does not assume any tariff.
- Does this include cooling or air leakage?
- No. It is a transmission-loss scenario only; ventilation, infiltration and cooling loads need an engineered climate study.
