Frankfurt (Germany), 6-9 June 2011 Overall targets:  Building a secure and scalable IP Network as an enabler for: Demand side management Energy management system Grid management system  Prove feasibility of the technology  Learn more about customer behaviour and acceptance Communication network for Swiss Smart Grid Pilot Project Thomas Gfeller - Ludger Ullrich – Switzerland – Session 3 – Paper 1153

Frankfurt (Germany), 6-9 June 2011 Highly Interoperable – Fits All Meters □ Exchangeable layer architecture □ High rollout flexibility by separate gateways □ Fits all makes and models of (electronic) meters, no exchange of meters □ GSM-GPRS as access network, others easy to implement □ WAN fully based on TCP/IP □ Using standard services only Thomas Gfeller - Ludger Ullrich – Switzerland – Session 3 – Paper 1153

Frankfurt (Germany), 6-9 June 2011 Thomas Gfeller - Ludger Ullrich – Switzerland – Session 3 – Paper 1153 Near Real Time Communication □ IP based transport platform supports all common transmission paths: GSM/GPRS, xDSL, ….. => a must in rural areas □ Dynamic or static IP address allocation □ Near real time data communication supports smart grid funcionality □ Highly secure data transmission □ Highly scalable Network

Frankfurt (Germany), 6-9 June 2011 Very High Security Level  Highly secured network CNA (corporate network access)  Mobile access to your corporate network including client-server applications  Data exchange can be initiated from the device or from the service  Own private access point with private IP address  Fixed connection with corporate network (VPN, private network or dedicated line) Thomas Gfeller - Ludger Ullrich – Switzerland – Session 3 – Paper 1153

Frankfurt (Germany), 6-9 June 2011 Umbrella Management System □ Energy efficiency portal for customer □ Visualisation of energy consumption □ Demand side management □ Energy and grid management Thomas Gfeller - Ludger Ullrich – Switzerland – Session 3 – Paper 1153

Frankfurt (Germany), 6-9 June 2011 Energy efficiency Portal Thomas Gfeller - Ludger Ullrich – Switzerland – Session 3 – Paper 1153 □ Visualization with 15 min resolution □ „turbo“ visualisation near real time □ Customer display mobile or static □ Flexible tariffs

Frankfurt (Germany), 6-9 June 2011 Smart Grid Applications Thomas Gfeller - Ludger Ullrich – Switzerland – Session 3 – Paper 1153 □ multi-incentive system for the customer to improve energy efficiency: - different tariffs - individual forecasts - „red-light“ visualisation - target setting □ load shifting system operated by the DSO: - remote control of water heaters and heat pumps - within BKW‘s grid, the water heaters alone represent a power of 400 MW - pilot operation with 50 customers high customer acceptance