Analysis of The Utilization of Solar Panels as Pump Crusters Automatically in Fish Pond Farming

— The purpose of making this final task is to apply the solar power system as a source of electrical energy to move the water pump automatically in fish ponds. This system works automatically with the Water Level Control tool sensor (WLC), so that if the water level drops or rises then the water pump will automatically work. On this automated system use the Smart Relay SR2B121BD and the ZelioSoft 2 application. Data retrieval carried out at 10.00 -14.00 WIB, obtained data pumps 1 and 2 for a height of 1 cm for 30 minutes and a height of 2 cm for 70 minutes. The amount of discharge the pump produces 1 and 2 ranges from 37 L/M to 45 L/M. Pump 1 Test results obtained an average efficiency of 7.68%, with the highest efficiency of 11.03% and the lowest efficiency of 5.26%, while the average pump efficiency of 2, 7.05% with the highest efficiency of 10.66% and the lowest efficiency of 5.41%. The average efficiency of the solar panels is 11.20% with the highest efficiency of 14.60% and the lowest efficiency of 7.29%.


INTRODUCTION
The existing solar energy potential can be utilized to meet the needs of electricity by the community, moreover, its availability is very large for a long period of time and is environmentally friendly. Existing sunlight is converted into electrical energy by a solarcell. Solar cell is an elementemiconductor that can convert solar energy into electrical energy with a photovoltaic principle.
The management process in fish farming activities has several problems that occur, one of which is related to the condition of the water level in the pond. Usually the water level changes due to heavy rainfall, or a long drought. Water levels that are too deep or too shallow can interfere with fish activities in the pond. High rainfall can increase the water level even to overflow and cause fish to escape from the pond, while during drought, water supply is needed so that fish farming activities are not disturbed, therefore pump assistance is needed to increase or decrease the amount of water in the pond. Electricity needs as a pump drive in fish ponds can be supplied using solar cells. The selection of solar cells as providers of electricity needs is an application of efforts to utilize renewable energy so that it does not depend on electricity sources from PLN. The solar water pump is equipped with an automatic system with the concept of water level control so that the pump can turn on when needed to fill or reduce water in the pond.

II. METHODS
The methods used in writing this Final Project include the method of designing the solar power plant system, designing tool storage, and automated systems. The solar panels used in this final project total 4 pieces of sunlite polycrystalline type 156P-50 solar panels have dimensions of 545 x 675 x 25 mm. Solar charge controller is an equipment used to regulate the amount of charging current in the battery to avoid overcharging and regulate the consumption current from the battery so that fulldischarge and overload do not occur . The solar charge controller has one input and twooutputs which each have positive and negative terminals.

Figure 3 Battery
Batteries are a means of storing electrical energy in the form of chemical energy. In this final project, the battery used is ROCKET type ESFT 50-12 totaling 2 pieces, each of which has a capacity of 50 Ah. The voltage requirement in the final project is 24V so that the two batteries with a voltage of 12V each are assembled in series so that they can produce a voltage of 24V.

Testing
The testing process is one of the processes that aims to test the solar panels to drive the pump with water level control sensors and measure the solar panel power, pump power, and pump uptime at any change in water level. The water level is simulated at a height of 1 cm and 2 cm to obtain panel power and pump power. Battery charge/discharge current and voltage 4. Current and voltage at load 5. Time of filling/disposal of water in fish ponds

Menyiapkan system instalasi solar power plant and its
automation system 3. Ensuring the condition of the measuring instrument to be used under normal conditions 4. Setting the water level control sensor in conditions that require water up to 1 cm high 5. Pressing the ON button to activate the load 6. Record 5 predefined parameters at the beginning of the load ON periodically at 10 minutes later, until the load is automatically on the OFF condition 7. Setting the water level control sensor in conditions of excess water of 1 cm 8. Pressing the ON button to activate the load 9. Record 5 predefined parameters at the beginning of the load ON periodically at 10 minutes later, until the load is automatically on the OFF condition 10. Setting the water level control sensor in conditions of 2 cm lack of water 11. Pressing the ON button to activate the load 12. Record 5 predefined parameters at the beginning of the load ON periodically at 10 minutes later, until the load is automatically on the OFF condition 13. Setting the water level control sensor in conditions of excess water of 2 cm 14. Pressing the ON button to activate the load 15. Record 5 predefined parameters at the beginning of the load ON periodically at 10 minutes later, until the load is automatically on the OFF condition

Test and Analysis Data
The solar power generation system as a source of electricity generation in fish farming ponds is used as a pump drive automatically with a water level sensor (water levelcontrol).
The tool was tested on 7, 10, 14 and 15 August 2019 with conditions of changes in water levels of 1 cm and 2 cm so that the following data were obtained.    . b. The efficiency produced by solar panels in an average-loaded condition of 11.20% with the smallest efficiency was obtained on August 10, 2019 at 10.00 WIB which was 7.29% and the largest efficiency was obtained on August 10, 2019 at 13.40 WIB which was 14.60%. c. Pumps ON and OFF according to the condition of the water level in the pond. The average discharge produced by pump 1 is 0.662 L/S, and the average discharge produced by pump 2 is 0.658 L/S. The greatest efficiency in the pump produced by pump 1 obtained on August 10, 2019 was 11.03%, and the smallest efficiency of the pump was produced by pump 2 obtained on August 14, 2019 of 5.26%.