QoS in a near 100% renewable electricity system Hans De - TopicsExpress



          

QoS in a near 100% renewable electricity system Hans De Keulenaer Sustainable Energy Evangelist Availability of electricity in OECD countries is around 99.99% (meaning outages are limited to ~1 hour per year of 8760 hours). This level of reliability for such a large and complex system is phenomenal. What will happen to availability in a near 100% renewable electricity systems? PV and wind are available around 15-40% of the time, however systems can be designed to provide renewable electricity with significantly higher availability that that. But will we get it right 99.99% of the time? What factors do you see the increase or decrease availability in the renewable power system? E.g. Factors leading to lower availability: * Decentralised systems have more components, hence more failures. * The many smaller components in a renewable power system will be less monitored and maintained. * Availability of renewable energy sources is inherently lower. * Several major renewables are not dispatchable. * ... Factors leading to higher availability: * The impact of a failure in a renewable power system will be lower. * Renewable power systems have storage, leading to higher availability. * A renewable power system will have higher redundancy. * Demand response as an additional balancing force. * … Nobody knows what availability to expect in 2050. Personally, I can imagine availability to be into the high nineties, but probably not as high as 99.99%. That’s only 60 minutes of outage per year which is a very narrow margin for error. How do you think? What other factors do you see coming into play? What sectors may be affected?
Posted on: Sun, 02 Nov 2014 18:08:20 +0000

Trending Topics



Recently Viewed Topics




© 2015