500KT Compost Plant
500KT Compost Plant
The 500,000 tons/year compost plant is designed as a regional-scale processing hub, converting large volumes of agricultural biomass residues and livestock manure into certified organic compost.
It delivers strong economies of scale, stable cash flows, and significant environmental impact, while remaining technologically simple and operationally robust.
This asset represents a scalable, infrastructure-grade circular economy investment suitable for cluster-based SPVs.
Regional processing center for rice straw, sugarcane leaves, cassava residues, and manure
Anchor facility supporting multiple Tambon-scale biomass warehouses
Long-term organic fertilizer supply for surrounding agricultural zones
Total land requirement: 20–25 hectares
Processing halls (roofed): 25,000–30,000 m²
Outdoor windrow & curing areas: Integrated within site
Ancillary facilities: Screening, storage, loading, QA area
Windrow height: 2.2–2.5 m
Windrow width: 3.5–4.0 m
Retention time: 50–65 days (active + curing)
Warehouse type: Semi-enclosed industrial compost halls
Clear height: 10–12 m
Column spacing: 10–12 m
Steel structure: Heavy-duty hot-dip galvanized steel
Roofing:
Insulated metal roof with ridge ventilation
Flooring:
Reinforced concrete slab (180–200 mm)
Drainage: Engineered leachate and stormwater system
Ventilation: Natural + passive airflow
THB 280 – 400 million
High-capacity biomass shredders (2–3 lines)
Wheel loaders (4–5 units)
Self-propelled windrow turners
Automated blending and manure-dosing systems
Moisture and temperature control systems
Industrial screening systems (multiple lines)
Bulk and bagging lines (optional)
Finished compost storage bays
Weighbridge (60 tons)
Odor and leachate control infrastructure
Fire detection and zoning systems
On-site laboratory for quality assurance
Operated by professional SPV or contracted O&M provider
Workforce: 70–100 staff
No proprietary technology lock-in
Organic compost sales (bulk + bagged)
ASP: THB 1,200 – 1,800 / ton
Waste processing / service fees (where applicable)
Carbon & ESG value (bundled or indirect)
Finished compost yield: ~35–40%
Annual compost output: 175,000 – 200,000 tons
THB 250 – 350 million / year
THB 140 – 190 million / year
THB 110 – 170 million / year
CAPEX THB 280 – 400 million
EBITDA Margin 40–50%
Payback Period 4 – 6 years
Asset Life 20–25 years
IRR (Standalone) 17 – 22%
IRR (Integrated Platform) 22 – 26%+
500 KT capacities, REpow’s compost plants form a tiered, scalable circular-economy platform:
Low technology risk
Strong ESG and clean-air impact
Early and stable cash flows
Seamless integration with biomass warehouses and power plants
This assets offer bankable returns with measurable impact, while anchoring long-term biomass-to-energy ecosystems.