Implementation of sub-scrotal MRV System in Grid Connected Electricity Sub-Sector in Nigeria
Nigeria has an integrated national electricity system. In 2005, the Electric Power Sector Reform Act was signed into law enabling private companies to participate in electricity generation, transmission, and distribution, as well as, establishing the Nigerian Electricity Regulatory Commission, as the independent regulator for the entire power sector. Grid-connected electricity is generated by thermal power plants, which are almost entirely natural gas-driven and hydro power plants (approx 25% of generation). The Sub-sector presently includes 23 grid-connected generating plants in operation with a total installed capacity of 10,396 MW, and available capacity of 6,056 MW. As presented in the Second National Communication of Nigeria the energy sector accounts over 70 % of the country’s GHG emissions, with only 8.5 % of the total energy emissions from energy industries.
This reflects Nigeria’s poor investment in the electricity subsector. As a first step the institutional set-up and channels for data flow where mapped. The flow diagram shows the enhanced institutional set-up between government ministries and institutions within the grid connected electricity sub-sector, in terms of their roles and responsibilities regarding MRV, the reporting hierarchy and any mechanisms for communication and co-ordination among the institutions. GHG emissions physically occur at the stage of fossil fuel combustion [bold as orange] – which is the point of electricity generation in a power station. Therefore, the key parameters to monitor are:
- Type and amount of fossil fuels used – in Nigeria’s case, this is primarily natural gas;
- Net Calorific Value of the fuel – this refers to the specific qualities of the natural gas in terms of purity or wetness that affect the amount of electricity that can be generated by any specific unit of gas;
- Generation technology used – generator type, size and age; and,
- Net amount of electricity exported to the grid (MWh).
The templates designed and presented in this website allow for estimation of GHG emissions based IPCC 2006 tier 1 and tier 2 methods. Download templates here (Powerpoint)