Saving energy in the Smart Grid era
By V Clemence, RO Coccioni and A Glatigny, Schneider Electric
Electricity + Control, May 2015 (pages12 – 17)
Enquiries: Ntombi Mhangwani. Tel. 011 254 6400 or email
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The European Energy Efficiency Directive 2012/27/EU, as it applies to distribution system operators, can be summarised as follows:
Member states have enforced energy efficiency obligation target savings of 1,5 % each year for the time period ranging from 1 January 2014 through to 31 December 2020. Network tariffs will reflect network cost-savings. These savings will be achieved through both demand-side and demand-response measures and also through Distributed Generation (DG). This will include savings from lowering the cost of delivery of electricity or gas through investments in the distribution network or from network operational process improvements.
Concrete electrical efficiency measures and investments for improvements in network infrastructure will need to be identified by 30 June 2015.
Tariffs will be set at a rate that will encourage suppliers to improve consumer participation in system efficiency, including demand-response practices.
Issues discussed in the article:
Issue 1: Technical losses in MV lines
Issue 2: Impact of Distribution Energy Resources (DERs) on voltage management
Issue 3: Technical losses in LV lines
Issue 4: Non technical loss identification
In addition, inefficient transformers are discussed.
- Annual electricity distribution losses average 4 % in the European Union.
- Member states have enforced energy efficiency obligation target savings of 1,5 % each year until the end of 2020.
- In addition, Distribution System Operators (DSOs) are tasked with finding new ways to integrate smart grid drivers and alternative energy generation at consumer locations.