A groundswell of business interest in renewable energy supply is growing, particularly on-site solar photovoltaics (PV). What is still missing is a strong understanding of how on-site renewables can best complement the site's energy demand. New energy technologies, such as cheaper battery storage and more sophisticated energy monitoring and control systems, now provide an opportunity to optimise energy supply and demand i.e. through systems integrating Renewable Energy And Load Management (REALM). Optimising renewable energy supply and flexible energy loads through REALM systems can both reduce business costs and provide additional revenue streams e.g. through network support services or peer to peer trading. There is also potential to promote uptake of optimised REALM systems through designing more efficient network tariffs that are structured to deliver the maximum benefits to the customer and the operation of the network.
Direct replacement of Australia's coal and LNG exports with a renewable energy alternative can be hard to grasp. After all, you can't put the sun or the wind on a ship, can you? One feasible export pathway does just that in the form of hydrogen, produced by electrolysis of seawater and delivered to markets already familiar with Australia as a reliable supplier of sea-borne energy. Power can come from specially built wind and solar farms near the sea, or maybe a smart option is to produce hydrogen from grid power during times of excess renewable energy generation – this has the extra benefits of preventing waste and helping the grid operator to balance supply and demand.
Another hydrogen pathway uses ammonia NH3 as the transport medium, a much easier substance to manage in liquid form. This would give the receiving market fantastic flexibility to produce electricity, liquid fuels, and fertiliser all at the same time. Creating such an industry would also have important implications for our own liquid fuel supply – presently a strategic vulnerability for which we have no apparent plan.
Is there also a no-moving-parts solution to connect electricity grids directly under the sea? This turns out to be a credible technical stretch using today's technology. High-voltage direct-current transmission integrated with energy storage can mobilise northern Australia's solar resource to make a secure, dispatchable power station in the Java grid, where it might complement the unmatched local geothermal resources. This export pathway opens up a deep strategic partnership with Indonesia to create a regional energy market, and launch it into an emissions-free future.
59 countries, 72 cties, 63 regions and states, 9 utilities, 21 non-profit, education and public institutions, totaling more than 1.8 billion people have committed to shifting within the next few decades to 100% renewable energy.
The transition to 100% renewables is not science fiction anymore.
This energy revolution requires multiple innovative developments in engineering, new services and legislation, which will create huge opportunities for new wealth creation. Dr. Sven Teske specialised in 100% renewable energy concepts and will provide a brief overview about the required technologies, services and challenges ahead of us.
5:30pm, Tuesday 21 November 2017
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