Biowatt Biogas Generator Sets for Waste-to-Energy Plants

Dec 22, 2025

Engineering specifications, performance data, and project configurations for 400-2000kW food waste, sewage sludge, and wastewater facilities

Biowatt-190-Series-Biogas-Generator-Set-500kW-in-factory

For project engineers and facility managers: This guide details exactly how Biowatt 190 & 300 Series generator sets integrate into waste-to-energy operations, with technical specifications, performance benchmarks, and installation requirements based on 173 operational projects worldwide.

1. Generator Set Selection Matrix for Waste Streams

Rule of thumb: 1 ton of food waste ≈ 120-150 m³ biogas ≈ 250-300 kWh electricity

Waste Type	Biogas Yield	Recommended Biowatt Model	Typical Facility Scale
Food Waste (pre-consumer)	120-180 m³/ton	190 Series 400-700kW (50Hz: 400 GFLS to 700 GFLS)	50-300 TPD facilities
Sewage Sludge (municipal WWTP)	15-25 m³/m³ sludge	190 Series 600-1000kW (50Hz: 600 GFLS to 1000 GFLS)	100,000+ PE treatment plants
Industrial Wastewater (food processing, brewing)	0.8-1.2 m³/kg COD	300 Series 1500-2000kW (1500 GFLS to 2000 GFLS)	Large industrial complexes
Agricultural Residues (manure + crop)	30-50 m³/ton	190 Series 500-800kW (60Hz: 500GFLS to 800GFLS)	1000+ animal unit farms

2. Technical Adaptations for Waste-Derived Biogas

Standard natural gas gensets fail with biogas. Our modifications:

Combustion System

Material Upgrades

Control Systems

● Lean-burn technology (Air/fuel ratio: 1.5-1.7 vs natural gas at 1.0)

● Pre-chamber spark ignition for low methane content (45-65%)

● High-energy ignition coils (35,000V) for consistent firing

● Stellite-coated valves & seats (resists H₂S corrosion)

● 316L stainless steel exhaust manifolds

● Ceramic thermal barrier coatings in combustion chamber

● Woodward EasyGen 2500 controls with biogas-specific algorithms

● Real-time CH₄% monitoring with automatic air/fuel adjustment

● Integrated safety: H₂S > 2000 ppm automatic shutdown

3. Documented Performance in Operational Plants

40.2%	≥95%	≤500 mg/Nm³	45-50%
Electrical efficiency (190 Series, 65% CH₄ biogas)	Availability in food waste plants (24/7 operation)	NOx emissions (meets EU 2015/2193)	Heat recovery rate (80-90°C hot water)

Case: Shanghai Food Waste Plant

● 200 TPD capacity, 24,000 m³/day biogas
● (2) Biowatt 1000 GFLS units (50Hz)
● Output: 18,500 MWh/year electricity + 22,000 MWh/year thermal
● Operational since 2021: 23,500+ hours, 98.2% availability

4. Installation & Integration Specifications

Site Requirements

● Foundation: Reinforced concrete, 400mm minimum thickness, vibration isolation pads included

● Space: 190 Series: 5.1×2.0×2.2m (400kW) to 6.0×2.3×2.8m (1000kW)
300 Series: 8.9×2.36×3.29m (1500-2000kW)

● Biogas supply: ≥2.5 kPa pressure, ≤40°C temperature, ≤2000 ppm H₂S

● Cooling: Radiator (air-cooled) or heat exchanger (water-cooled) options

Electrical Interface

● Standard outputs: 400V/0.4kV (50Hz), 480V/0.44kV (60Hz)

● Available: 6.6kV, 11kV, 13.8kV for direct grid connection

● Protection: Integrated circuit breakers, sync-check relays, anti-islanding

● Controls: Remote SCADA interface (Modbus TCP/IP, Profibus DP)

5. Project Implementation Timeline

Phase	Duration	Biowatt Deliverables
Feasibility (Site assessment)	2-4 weeks	• Biogas analysis review • Load profile assessment • Preliminary specs & quotation
Engineering (Detailed design)	4-6 weeks	• Foundation drawings • Electrical single-line diagrams • P&ID for gas/water connections
Manufacturing	8-12 weeks	• Unit assembly & testing • Factory acceptance test (FA
Installation	2-3 weeks	• On-site supervision • Commissioning & SAT • Operator training