Electricity transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation for eventual use by consumers. Due to the large amount of power involved and the properties of electricity, transmission normally takes place at high voltage (above 132kilovolts) to reduce losses that occur over long distances.
At the substation, the high voltage Electricity is converted to lower voltages suitable for consumer use, and then transmitted to end users through relatively low-voltage electricity distribution lines that are owned and operated by the national electricity utility.
KETRACO’s transmission projects fall into four broad categories based on their specific objectives namely:
- System strengthening projects
The System Strengthening/Capacity Enhancement Projects aim at improving transfer capacity of electrical energy and address the challenge of low voltages, high transmission losses, unreliability of supply and network security.
- Power evacuation projects
These target the evacuation of power from various generation plants for injection into the national grid.
- Regional interconnectors
The interconnector projects target facilitation of power trading with neighbouring countries.
- Electricity access projects
The main objective of this category of projects is to increase electricity access and address the challenges of low access and connectivity.