eprintid: 577 rev_number: 9 eprint_status: archive userid: 10 dir: disk0/00/00/05/77 datestamp: 2012-03-22 16:08:11 lastmod: 2015-05-29 20:12:01 status_changed: 2012-03-22 16:08:11 type: report metadata_visibility: show item_issues_count: 0 creators_name: M., Brown creators_name: L., MacManus corp_creators: James Parrott title: Effect of distributed energy systems on the electricity grid ispublished: pub subjects: utilities studygroups: esgi80 companyname: Ecotricity full_text_status: public abstract: A feasibility study is being carried out at Ecotricity into a distributed energy storage system comprising Energy stores (batteries) placed at consumer level (in customer’s homes). The aim is to flatten consumer demand and make better use of home-based generation. The Study Group considered the mechanism of connecting batteries to the local distribution system, the ability to meet engineering requirements for the standard of the connection, and the potential impact of large numbers of such connections on stability of the local distribution network. Network and (DC-AC) invertor models were used to examine network connection transients. A statistical model was proposed to estimate the distribution of key electrical parameters to determine the likelihood of engineering standards being exceeded. The Study Group also considered stochastic methods of modelling wind speed, to better understand the requirements for battery energy storage as a complement to wind power. date: 2011 citation: M., Brown and L., MacManus (2011) Effect of distributed energy systems on the electricity grid. [Study Group Report] document_url: http://miis.maths.ox.ac.uk/miis/577/1/4.pdf