The raw garbage is turned into RDF
(Refused Derived Fuel).
provide the technology to convert solid waste to electric energy.
A power plant with the capability of producing 20 MW of
electricity could cost up to $20M (twenty million US$). However a plant
that fuels its self by using garbage to generate the same amount of
electricity, my cost three to four times that amount.
Landfill sites can become prime real estate in the long term for commercial, civic, or residential use. This fact alone may generate enough capital to more than pay for power generation, depending on location. The long-term effects of landfill sites are harmful gases that pollute the air, the danger of leakage into the underground water tables, and a potential setting for breeding diseases of all types.
We propose a power plant that frees up landfill property for development and can contend with the environmental issues that are associated with waste refuse. Power plants that can use all unwanted waste as their main source of fuel can produce electricity economically and are also friendly to the environment.
Consider fifty acres of land, in close proximity to a city, overflowing with the garbage, and it is desired to have this site transformed into green space and the remaining ten acres is being used to process the unwanted waste into re-usable form of energy “electricity”.
A – “Power Purchase Agreement” (PPA) for electricity,
which the national grid pays to the owner of the plant. This price varies
from $0.07 to $0.20 per KwH, depending on the demand and location.
Tipping Fee. Municipalities pay the plant operators/owners a tipping fee for
each ton that they receive and handle per day. The tipping fee is around $60
per ton in the US, however this varies between $15 to $20 per ton in certain
areas. For this analysis we use $15 Tipping Fee.
C - Bottom ash could be sold as fertilizer or used in construction material.
D - Real estate value of land per acre -in this case 40 acres- would depend on the location. Since land values generally appreciate over time, this value could shorten the payback time even more.
E. - Sale of supplemental RDF (Refuse Derived Fuel) pellet production to other major fuel users.
Plant Turnkey cost includes Engineering, Procurement Contracting,
Insurance, Marketing and Commission etc.
B - Auxiliary Fuel. Our plant uses 30% Auxiliary fuel and 70% RDF. Therefore, before embarking on the project, it is essential to establish what type of auxiliary fuels is available and the cost. Different countries have their own priorities. Some may use rice husk, wood chips, gas, coal, or any other biomass products. Auxiliary fuel is free of charge in some countries. However, a conservative estimate for the auxiliary fuel should not exceed $700,000 per year.
Operation Labor Cost. Our plant needs a work force of about 55 technical and
100 non-technical workers if a fully automated option is not chosen.
Within the US and other industrial countries this would increase your
overall cost and reduces the annual profit. However, in developing
countries this would be welcomed, as it would generate much-needed jobs and
the over all
labor cost should not exceed $2,500,000 per year.
Facts and figures about
Garbage to Energy