Integration of Renewable Energy and Energy Efficiency into High Temperature Applications
Day: Tuesday, 6th October 2015
Time: 11:30 – 13:00
Room: Ballroom West
Numerous economically important high temperature processes contribute to South African emissions; this is apart from the electricity generation sector which is responsible for half of South African emissions. Some are driven by fossil fuel combustion in the mining, metals, industry, and liquid fuel refining and synthesis sectors while others are driven by fossil-derived grid electricity. Many of these processes are amenable to hybridisation with, or even replacement by, heat from concentrating solar collectors, or electric conversion (preferably renewable) if fossil-based. This can enable further emissions reductions, as fuel combustion is displaced.
Globally, renewable energy technologies have predominantly been limited to the electricity generation sector, reducing carbon intensity and increasing energy security from the supply side.Examples of this are the nominally carbon-free electricity from hydro, wind, solar photovoltaic (PV) and concentrating solar power (CSP), as well as from waste biogas. In all these technologies (with the exception of hydro power) the use of policy-driven market incentives has stimulated market demand, reducing cost over time. The cost of PV and wind generated electricity is now below that of fossil-generated electricity in South Africa.
Questions to be addressed by the session
- Market: How can public policy lead (e.g., similar to feed-tariffs, bidding rounds, other support for renewable electricity) to a market for renewable technologies in high temperature applications with the objectives of higher deployment and cost reductions? What models could be used to make these technologies market viable?
- Hydrocarbon industry: South Africa is planning a gas infrastructure to diversify the energy mix of the country. In addition to the electricity and heating benefits, this influences the hydrocarbon economy through existing and planned gas-to-liquids (GTL) FT refining capacity. What would be required to introduce renewable heat into this sector?
- CO2 recycling: Does the dry reforming of natural gas for GTL FT mean that a viable future pathway exists for commercial recycling of CO2 generated by large industrial emitters?
- Competitive position: in what areas does the use of heat from concentrating solar technologies present a competitive advantage over heat generated from electricity generated from other renewables in high temperature applications, now and in the future?
- Mr. Robbie McNaughton, The Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
- Mr. Jan van Ravenswaay, SolarPACES National Solar Fuels Representative, North West University, South Africa
- Mr. Werner Weiss, Chair, AEE – Institute for Sustainable Technologies, Austria
- Mr. Douglas Arent, Executive Director of the Joint Institute for Strategic Energy Analysis, NREL
- Mr. Martin Roeb, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Germany
- Mr. Thomas Roos, Council for Scientific Industrial Research (CSIR), South Africa