23 Mar LESOTHO, RENEWABLE ENERGY GRID INTEGRATION STUDIES (REGIS)
Maseru, 22 March 2021,
The Renewable Energy Grid Integration Studies (REGIS) that GESTO is currently developing for the Lesotho Electricity Company (LEC), continue underway remotely notwithstanding the constraints inflicted by the global Covid-19 pandemic.
Despite the limitations, in beginning March 2021, a new milestone was achieved with the delivery of a comprehensive report on the Assessment of the Variable Renewable Energy Generation Grid Integration Impacts on System Operation and Reliability. This report sums up the core activity of the assignment and provides an analytical framework for evaluating the LEC power system with high levels of variable renewable energies (RE).
The project is expected to wrap-up by the third quarter of the current year.
The primary goal of the study is to address stakeholder concerns that the LEC power system can operate reliably and cost-effectively under various RE penetration scenarios. The focus is then to address the impacts and integration solutions associated with variable RE resources, particularly wind and solar. These resources pose distinct operational challenges for LEC power systems due to their variability (i.e., their change in output over various timescales due to the underlying fluctuation in resource) and uncertainty (i.e., the inability to perfectly predict resource availability and generator output). Although the LEC power system is designed and operated to efficiently manage variability and uncertainty in electricity demand and resource availability, significant levels of variable RE amplify this inherent variability and uncertainty and may require changes to system operations and/or physical infrastructure.