Depends on the type of waste, its chemical composition and moisture, which has a heavy influence on plant efficiency. Also, we should take into consideration the technology applied and the total cost of the plant. If we talk about municipal solid waste and incineration in Europe, so waste-to-energy projects there require feed-in-tariff (FIT) and tipping fee (TF).
FIT for major countries is 0.12 – 0.14 USD per kWh.
Additionally, tipping fee is required: 80 – 100 USD per ton.