Study of the Potential Utilization of Solar Energy at Village Head Office Paluh Manis Langkat

ABSTRACT


INTRODUCTION
The Presidential Regulation of the Republic of Indonesia number 5 of 2006 concerning the National energy policy has explained the realization of optimal primary energy will be implemented in 2025, so that energy diversification development is carried out by realizing the potential of regional energy that can be utilized as a substitute energy (Nathan S. Lewis, 2005).The energy source that has the highest potential lies in solar energy sources with a supllay of 3 x 1024 Joules/year equivalent to 10,000 times the energy use throughout the world.Indonesia with abundant sunlight and throughout the year makes a huge potential to be utilized (Rashel et al., 2017).The potential for solar energy in the Langkat district has considerable potential because the Langkat area has a tropical temperature which will experience the dry season in August to January, and will experience the rainy season in February to May (Rahmaniar, Junaidi & Sari, 2023).Langkat Regency has 20 sub-districts, 215 villages and 15 villages, with an area of 626,329 Ha.The total population in Langkat district is 926,069 people.
Paluh Manis Village is one of the 11 Villages located in the District of Gebang Langkat Regency, North Sumatra Province which has a population of 6,051 people with a Village Area: 2,000.00Ha where 578.00 Ha of the area is paddy land, 500.00Ha is dry land, 907.00 Ha is plantation land, and 15.00 Ha is land with public facilities.Paluh Manis Village has 10 hamlets, namely, Hamlet I, Hamlet II, Hamlet III (Martoba), Hamlet IV, Hamlet V (Cinta Rakyat), Hamlet VI, Hamlet VII, Hamlet VIII, Hamlet IX and Hamlet X (Bukit Cinta Rakyat).Paluh Manis Village of Langkat Regency is dominated by Javanese who are Muslims.Social life in Paluh Manis is still well maintained, this is evidenced by the recitation activities of Paluh Manis residents which are routinely held every week and there are also several activities made by local pkk mothers to strengthen their relationship (Rahmaniar et al., 2022).In addition, mutual cooperation in cleaning the sewers and the Paluh Manis area and mutual cooperation in celebrations or weddings and circumcisions of the apostle were never forgotten (Agency, 2000).There, Paluh Manis residents help each other and work together in terms of forming the rewang committee as well as installing tents and all the equipment needed for the event.Paluh Manis Village has 10 hamlets, namely, Hamlet I, Hamlet II, Hamlet III (Martoba), Hamlet IV, Hamlet V (Cinta Rakyat), Hamlet VI, Hamlet VII, Hamlet VIII, Hamlet IX and Hamlet X (Bukit Cinta Rakyat).Nevertheless, the local community remains united and cooperates with each other in carrying out activities, especially in advancing Paluh Manis.
Every Kelurahan has a leader and his or her apparatus.The highest leader in a village office is the village head, and the village head is supported by the village secretary (sekdes) and other village officials.The village head has a very important task, which is to organize and maintain the welfare of the Paluh Manis community(Praditya Tampubolon, Agus.Christian Adiatma, 2019).Then in a hamlet there are several neighborhoods that have one hamlet head (Kadus) who is entrusted with maintaining and regulating his neighborhood to keep obeying orders from the Village Head.In the Paluh Manis government, the Village Head is Mr. Ngatimin.

RESEARCH METHOD
This regional observation method is aimed at knowing the geographical conditions of the area, the potential and natural resources of the Paluh Manis Village village, besides that students also analyze the potential resources in the village of Paluh Manis to be developed and empowered in order to have a positive impact on the people who live there.Activity Observation in the form of daily activities of the community.By knowing this, students can analyze programs that are suitable to run, related to matters relating to community empowerment.For this reason, students are expected to play a role as mediators and be able to activate activities to develop local talents and potential, so that the potential of the community can be utilized properly.

RESULTS AND DISCUSSIONS Calculating the wattage of the panel
Calculate how many watts of solar panels are needed to charge a number of batteries obtained from the calculation of the number of batteries.100 watt peak solar panel.In Indonesia, the maximum average solar energy that can be absorbed by solar panels and converted into electrical energy on average is 5 hours per day (90:00 pm, to 14:00 pm).The number of solar panel requirements: (3300 watt hour : 5 hours) : 100 watt peak = 6.6 (7) solar panel units of 100 peak (preferably 8 units of 100 wp).

Calculating how many amperes the controller charger capacity requires
The size (rating) for the current controller in and out of me is determined in units of apere.To calculate the chargge controller requirements, we must first know the characteristics and specifications of the solar panel, usually on the back of the solar paenl there are technical specifications, for example: 1. Maximum power (Pmax) 100 w. 2. Type cell monocrystalline 3. Voltage at Pmax (Vmp) 17.4v Current at Pmax (Imp) 5.75A 4. Short circuit current ( isc) 6.33A 5. Open Circuit Voltahge (Voc) 21.6 Vmaximum System Voltage 1000 v.
What must be considered is the isc number, the value is multiplied by the solar panel, the result is the value of how much the minimum value of the charger controller is needed: 7 x 6.33 = 44, 31 amperes (better actually 60 A).

Inverter Capacity
The wattage of the DC or AC inverter required is: 1000 watts.As explained above, the cost of building a home/office solar power plant is quite expensive, but it is for a long term of at least 20 years (the life of solar panels).

Estimated costs that must be incurred
4. CONCLUSION 1. Identifying overall electricity consumption and knowing peak power requirements is the first step in determining the size and capacity of solar panels so that they can be more optimal and precise and can plan investments intelligently.

5.
Reliable information by calculating the potential every week and taking into account environmental factors are the keywords in installing a reliable, high-performance solar power system that suits the user's needs.

Figure1
Figure1.Paluh Manis Village Head Office, Langkat Sunlight measurements were made using a special tool, the Solar Power MeterTM-207 with the results: . Paluh Manis Village Head Office, Langkat Sunlight measurements were made using a special tool, the Solar Power MeterTM-207 with the results: A rough calculation of the costs needed to be able to back up the use of electricity in a house of 425 watts