Power grid stability with an increasing share of intermittent renewables (such as solar PV) in Singapore
Goal: Mitigate the impact of fluctuations from solar photovoltaics on the power grid
Singapore aims at installing more clean and renewable energies. Solar photovoltaics are the best option for Singapore and they could cover up to 30 % of Singapore’s electricity demand according to the Solar PV Roadmap published by the Solar Energy Research Institute of Singapore (SERIS) in 2014.
We are part of this project on the CRP‑9 grant which was awarded to SERIS in 2012. Our contributions to this project are simulation of residential electricity demand profiles, building models, and design of a strategy for flexible consumers in the distribution grid. Everything will be incorporated in a cost-optimal distributed optimisation framework.
Approach and Methodology
To reach the goal, we perform a feasibility analysis of the current power grid and integration of various storage mitigation options, qualify and quantify demand side management and demand response opportunities in Singapore with respect to both the technical and economic aspects and analyse the spatial and temporal impact of demand side management strategies on the power grid.
Due to their high consumption and inherent thermal inertia, we consider buildings a natural candidate for providing flexible demand. For the purpose of conducting demand response studies in Singapore, we validated and deployed two state-of-the-art control-oriented building models. Our results show the adequacy of buildings and electric vehicles to provide flexible energy and reserves in the National Energy Market of Singapore. Solar photovoltaics are also included in our flexible demand framework.
The expected outcomes of this project are a residential load profile simulator, thermal-based commercial building models and a cost-optimal distributed optimisation framework.
Our tools facilitate the integration of solar photovoltaics into Singapore’s grid using buildings as flexible loads. Incentives can be offered to participants while preserving their sensitive information.
This project is carried out by SERIS with TUMCREATE as sub-contractor.