THE APPLICATION OF IMAGINEERING CONCEPT IN BIOGAS –TO – ELECTRICITY GENERATION FOR DOMESTIC USES: NIGERIA PERSPECTIVE

Abstract

There is shortage in electricity supply for household use, which has resulted to prevalent massive subscription to
fossil fuel powered electricity generating sets (of various capacities) otherwise known as generators. There exists the
need for an adaptable sustainable alternative energy sources to the fossil fuels. The paper presents an Imagineering
concept of running a holistic analysis of biogas to electricity conversion system to ascertain adaptability of biogas as
alternative fuel source for electricity generation in Nigeria. Backward integration was applied, determining the
electricity demand of household, the biogas need, and the capacity of the digester as well as the feedstock, to fulfill
this. A typical household in the urban or sub-urban cities in Nigeria; with daily consumption capacity of 20 KWh
per day to 30 KWh per day on 6 hours per day supply from the national grid, and 24 hours electricity need, was
found to have need of 239kg to 358kg of the organic matter per month and a 12m3 to 18m3 digester size. This shows
that the system with the current situation is not sustainable. The paper suggests various means of improving the
sustainability and adaptability of the system.