1. Smart Power Management Presentation The Total Smart Grid Solution 2011

2. Agenda • Introduction • Specifications and Legislation • Substation and Mini Substation Management • Load Management • Streetlight Management • Smart Metering • Conclusion

3. Introduction • After many years of development a total solution to control the electrical grid has been developed in South Africa by Gull Meter Solutions. • The solution has three modules which can operate independently from each other, namely: • Smart meters in line with the proposed National Standard NRS 049 2008. • Street light controllers. • Sub-station and mini sub-station management system.

4. Legislation According to regulations published in the Government Gazette in July 2008, It will be mandatory for licensed electricity suppliers such as Municipalities to control the feed of electricity to heaters, ventilation system, air conditioner, Geysers and pool pumps in their supply areas remotely.

5. Specifications • Comply with NRS 049 Standards • Comply with IEC Specific Standards • Meet all Advanced Metering Infrastructure (AMI) Requirements

7. Communications Architecture Utility Control Centre OSFW Port 2700 Hosting Server RF Comms GMS Local Network Internet Service Provider VRF

8. Substation Controller Mini-SubstationController Smart Meter at House Streetlight Controller

9. Load Management Geyser Controlled Swimming Pool Pump Controlled Heater Stove Air Conditioning

10. Substation Management

11. Substation Specifications • Can measure the Current on each panel in the Sub. • Can send warnings when the Current reach a pre- programmed safety threshold. • Can trip the panel if the Current rise above the programmed maximum. • Shows power consumption by phase e.g.: red blue and white. • Shows all activities of the subs and mini-subs in real time. • Measures bus bar temperatures. • Detects smoke and humidity. • Monitors 12volt DC safety backup system on the panels. • Shows line faults on the cable when they occur. • Sends a distress signal within seconds when line faults occur, showing exactly where the faults are. • Allows the utility to be informed of cable faults before customers complain about power outages.

12. Substation Specifications • Allows the utility to proactively inform customers that there is a fault on the line. • Visually shows the area which is without power by sub and mini sub on the control panel. • Can detect theft and shut down a panel when theft is detected. • Can communicate with all SLC’ and smart meters meter’s. • Automatically starts to manage appliances when demand stars to exceed supply, by switching off geysers, pool pumps, heaters street lights etc. • Automatically switches appliances back on when supply exceeds demand ensuring maximum revenue for the utility. • Will show the revenue which will be lost during a scheduled load shed. • Will automatically manage the grid by area thus removing the need to shut down an entire grid during high demand periods. • Maintain a maintenance schedule for each and every sub and mini-sub. • Is easily installed.

13. Substation Management Substation Location Substation Supply Grid Mini-Substations in Grid Panels in Substation with Loads

14. Substation Management

15. Substation Management

16. Substation Management Load Management

17. Load Management Geyser Controlled Swimming Pool Pump Controlled Under Floor Heating Air Conditioning

18. Streetlight Management

19. Streetlight Specifications • Can measure exactly what each street light is drawing. • Can switch street lights on and off remotely. • Can switch Street lights on and off one at a time, in groups, in banks of 10, 20, by street, area etc. • Can be calibrated into seasons e.g. earlier in winter and later in summer. • Can be switched off once cars are off the road after 9.30 pm to conserve energy. • Can be switched on or off in sequence e.g.: every second or third one etc. • Can be used to control the demand versus supply in times of load shedding.

20. Streetlight Specifications • Will send a distress signal when street light fails showing which light has failed with pole number and GPS co-ordinates. • Visually show which street light is faulty on the control panel. • Will reduce maintenance costs on street lights by showing problem areas when they occur without sending maintenance teams out at night. • Will reduce theft because the lines are always live. • Will send distress signal when illegal connections are put onto the main line and pinpoint the exactly position where the connections are. • Can measure total power flowing to the lights versus what is been drawn off the power line. • Can be switched on by emergency vehicles in the event of accidents etc.

21. Streetlight Management

22. Streetlight Management

23. Smart Meter Specifications • Can be mounted onto existing meters to change existing mechanical meters into smart meters. (No infrastructure changes required). • Can replace existing meters if required. • Can connect / disconnect electricity remotely for less than 10 cents if monthly accounts are not paid. • Can change existing mechanical meters into pre-paid meters if accounts are not paid on time. • Can charge pre-paid coupons in time of use tariffs. • Can take a digital image of meter and deliver the photo directly to billing system.

24. Smart Meter Specifications • Can take a digital reading if photo is not required. • Can read meters at a rate of up 60 000 readings per minute at less than 10 cents per reading. • Can communicate to all appliances within the home. • Has 2 way communications to all appliance including geysers. • Can read consumption per appliance in the home. • Are manufactured in accordance to the proposed NRS 049 2008 standard. • Do not require accumulators to gather information as other meters do. • Can detect theft or excessive usage of power.

25. Smart Meter Specifications • Allow consumers access to their own accounts via Cell phones, internet or Interface units. • Allow consumers to manage appliance remotely from anywhere in the world. • Are programmable to automatically load shed the home when required by the utility. • Has parental control on appliance if so required. • Can be installed in 30 minutes. • Can be supplied at rate of approximately 2000 per day after the initial production period. • Allows utility an alternative revenue stream by installing / selling appliance controllers to the customers.

26. Smart Metering

27. Smart Metering