Chapter Meetings (western Cape)

INCOSE SA — The current draft version of South Africa's Integrated Resource Plan (IRP 2016 Draft) plans for a renewable energy share in domestic electricity production of 18% by 2030, 26% by 2040 and keeps that share constant at 26% until 2050. The plan limits the amount of renewables that can be built in any given year and therefore arrives at these relatively modest renewables shares until 2050. The CSIR conducted a study that lifts the renewables new-build constraints and re-optimises the power mix until 2050 from a pure least-cost perspective. The preliminary results of this unconstrained model outcome will be presented. The least cost scenario exhibits a large amount of solar PV and wind in the power system by 2050. With a much larger share of these two variable renewables (VRE) in the power system, the immediate next question is how to bring in the concept of sector coupling (electricity, transport and heat) in order to reduce total energy system cost even further (through the portfolio effect) an