Biomethane Market By Feedstock (Organic Household Waste, Animal Manure, Energy Crops, Agricultural Waste, Sewage Sludge, Industrial Food Processing Waste, Others), By Production Process (Anaerobic Digestion, Gasification, Pyrolysis), By Application (Heat Generation, Electricity Generation, Combine Heat & Power (CHP), Alternative Fuel, Others), By End-Use (Industrial, Commercial, Residential) - Growth, Share, Opportunities & Competitive Analysis, 2026 - 2034