Microgrids Ramona Reservation Riverside County California Reginald Agunwah

Microgrids: Ramona Reservation Riverside County, California Reginald Agunwah Water and Environmental Specialist Ramona Band of Cahuilla April 29, 2015

Regional Location

Land Locked: Electric Grid Access

Macro-Grid Hybrid Power System 10 k. W Photovoltaic Array, 120 panels at 175 W VRLA (Valve Regulated Lead Acid) Battery Banks 15 k. VA continuous inverter with 175 A disconnect 60 k. W 3 Phase Diesel Generator Power Station Building 12’ x 16’ Monitoring System, Inverter, Breaker Box, Wiring, etc. Expandable depending on concept.

Evergreen Solar Cedar Line Photovoltaic modules EC-100 Series

Absolyte IIP Batteries • Battery Output: 10, 800 Ah at 48 volts • Life Capacity: up to 20 years • Weight: 300 lbs per unit, 48 units in total.

Outback Inverters/Chargers • 36 k. W Inverters • 120/240 Volts

Housing Complex: Micro-Grid Hybrid System 2 k. W wind turbine capacity with wireless controls 6. 3 k. W large photovoltaic modular array VRLA (Valve Regulated Lead Acid) battery banks 25 k. W Diesel generator

Wind Turbine and Solar Cells for Housing Complex, producing 8. 3 k. W

Power House (includes back-up propane/diesel generator, battery bank, and inverters/chargers)

Water Supply Well: Microgrid • • Previous well was poorly constructed. As a result, not enough water was supplied. Solution: Build another well. Power it with solar.

Completed Array

Solar Components 51 Eoplly Monocrystalline Solar Panels, 190 W each, equaling ~9. 6 k. W. 480 V Backup Diesel Generator 25 -40 k. W. Lorentz Solar Pump Control Model PS 9 k 2 and Communicator. Variable Frequency Drive Double Throw Switch

Water Storage Tanks • The center tank has float tree and measurement gage. • Float tree communicates with the controller to turn on and off the well pump as needed. • Mostly autonomous. If needed, a diesel generator can assist with powering the pump.

Continuing Work Find more grants related to energy. Complete the construction for the solar power supply. Add solar systems to water wells and to Tribal homes. Continue to be self-sufficient.

Contact Information Reginald Agunwah Water and Environmental Specialist Ramona Band of Cahuilla 951 -763 -4105 office 951 -551 -2573 mobile ragunwah@ramona-nsn. gov Or Nicollete Jonkhoff njonkhoff@ramona-nsn. gov