1. SOLAR PUMPING March 7 th 2013

2. 01 Solar Pumping / ¿What is Solar Pumping? Solar Pumping consists in supplying water pumps with the energy generated by a PV Solar Plant. ¿ WHAT IS SOLAR PUMPING? SOLAR PANELS PUBLIC GRID OR DIESEL GENERATOR PUMPING SYSTEM

3. 01 Solar Pumping / Power Electronics Offered Solution SD700 SPK - POWER ELECTRONICS TURN-KEY SOLUTION

4. 01 Solar Pumping / Power Electronics Offered Solution SD700SP AC Fuses AC on-load disconnector DC On-load disconnector DC Fuses DC terminals (+) and (-)

5. OPERATION MODES 01 Solar Pumping / Operation Modes  RENEWABLE ENERGY SELF-SUFFIENCENT: SD700SP is only connected to the PV field, generating the necessary power to start and speed-up the pump. The motor start will depend on the systems minimum power required.  SOLAR ASSISTED SYSTEM: SD700SP is connected to the PV farm and to the grid simultaneously. The PV power is prioritized.  GRID CONNECTED: SD700SP is operated as a regular VSD, hence it allow to run the pump during night hours and during PV farm maintenance seasons. In no event will the PV farm (DC) and the electric grid (AC) interact, due to the unidirectional thyristor-diode rectifier bridge in between them.

6. OPERATION MODE: RENEWABLE ENERGY SELF- SUFFICIENT 01 Solar Pumping / Renewable Energy Self-sufficient Minimum System Required Power (30Hz-50Hz) Maximum System Power (50Hz)

7. Q (m 3 ) Height (bar) Q (m 3 ) Height (bar) BOTH SYSTEM AND PUMP CURVES DEFINE THE MINIUM START REQ. CURVE -A CURVE -B Min Height. 50 Hz 40 Hz 30 Hz 20 Hz 50 Hz 40 Hz 30 Hz  Curves with high angled slopes offer optimal regulation  Better regulations deliver higher savings  Curves with low angled slopes offer poor regulation  Energy savings are restricted by the regulation range 01 Solar Pumping / Self Supplied INDIVIDUALIZED SYSTEM ANALYSIS

8. OPERATION MODE: SOLAR ASSISTED 01 Solar Pumping / Solar Assisted

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