The document summarizes a project called Large Scale Storage for Network Services (LSSNS) that demonstrated the capability for a 100MW grid-connected battery facility in Europe. The project was a collaboration between AES, a global power company, and Queen's University Belfast (QUB). It received funding from Innovate UK/Energy Catalyst to install and test a 10MW/5MWh battery array in the UK transmission system, which was completed in December 2015. The goals were to provide enhanced system services to support increasing renewable energy targets and stability challenges on the grid.