Salam, rekan Nawala! Semoga kalian selalu dalam keadaan sehat.
Ini adalah Nawala IAES dari Institute of Advanced Engineering and Science. Hari ini kami akan berbagi kabar tentang perkembangan teknologi solar energy. Solar energy adalah sumber daya terbarukan dan berkelanjutan yang berasal dari radiasi matahari. Energi ini dapat dimanfaatkan melalui berbagai teknologi, terutama sel photovoltaic (PV) dan sistem panas matahari. Saadaoui dkk. (2023) melakukan penelitian untuk meningkatkan produksi energi terbarukan dengan menggunakan metode floating solar energy, dimana solar panel diapungkan diatas permukaan air bendungan dan waduk. Tantangan dari pendekatan ini adalah mengamankan panel surya yang terapung agar tidak tertiup angin dan terganggu oleh elemen-elemen lainnya. Studi ini juga meneliti dampak air karakteristik aliran air pada output solar energy dari panel terapung. Lebih detail terkait penelitian tersebut dapat dilihat pada atikel berikut:
An analysis of the prospects and efficiency of floating and overland photovoltaic systems
Khalil Saadaoui, Kaoutar Senhaji Rhazi, Youssef Mejdoub, Abderraouf Aboudou
The world’s increasing demand for energy coupled with dwindling natural resources has spurred the need for alternative and renewable energy sources. However, one of the biggest drawbacks of renewable energy is its intermittency. Currently, most of the world’s electrical energy comes from thermal power and nuclear energy combined. Despite being heavily reliant on energy imports, Morocco has made progress in developing its solar energy capacity with an installed capacity of 760 MW, 200 MW of which comes from photovoltaics. One way for Morocco to further increase its renewable energy production is through floating solar power, which utilizes the water surface of dams and reservoirs. The challenge with this approach is to secure the floating solar panels to prevent them from being blown about by wind and other elements. Like onshore solar power, offshore solar power also utilizes maximum power point tracking (MPPT) technology to maximize energy production. To compare the efficiency of terrestrial and marine solar power systems, the design and simulation of a solar PV system with MPPT through a boost converter was carried out using MATLAB/Simulink models. The study also examined the impact of water flow characteristics on the output of solar energy from floating panels.
Fluktuasi suhu dapat mempengaruhi efisiensi panel surya. Pada penelitian yang dilakukan Kusuma dkk. (2023), mereka menguji penggunaan sistem pendingin untuk mengurangi fluktuasi suhu dan power loss pada panel surya. Sistem pendingin udara dengan Peltier menunjukkan pengurangan fluktuasi suhu sebesar 14.5% dan power loss sebesar 4%. Adapun penelitian tersebut selengkapnya dapat dilihat pada artikel berikut:
Vicky Andria Kusuma, Happy Aprillia, Sena Sukmananda Suprapto, Muhammad Nizhom Ramadhani, Aji Akbar Firdaus, Dimas Fajar Uman Putra
This research addresses the problem of temperature fluctuations affecting the efficiency of solar panels. A cooling system has been developed using a Peltier and a combination of air- and water-cooling methods. The air-cooling system involves placing a Peltier coated with a heatsink under the solar panel, while the water-cooling system uses pumped water on the panel’s surface. The study aims to design a solar panel cooling system to reduce temperature and power losses and compare its output to standard solar panels. The system includes a Peltier, DC fan, and heatsink. Results indicate that the air-cooling system reduced temperature losses on the bottom milk of solar panels by 14.5%. However, the surface of solar panels showed no reduction in temperature losses. Additionally, solar panels with cooling systems were able to reduce power losses by 4% compared to standard solar panels. This research suggests that the use of an air-cooling system utilizing Peltier as the cooling medium could be a potential solution to reduce temperature losses and power losses on solar panels.
Apakah penggunaan solar energy membuat pengeluaran menjadi lebih hemat? Untuk menjawab pertanyaan tersebut Guerrero dan Ramos (2023) melakukan sebuah penelitian terkait efisiensi penggunaan solar energy. Pada penelitian tersebut mereka memperkenalkan metode baru untuk mengevaluasi kesesuaian implementasi teknologi surya di rumah sakit Eropa, yang menekankan pentingnya pembangkitan energi terbarukan dan efisiensi energi dalam membatasi konsumsi energi dan emisi rumah sakit. Selain itu, penelitian ini menyoroti peran penting dari biaya sumber energi yang berlaku dalam menentukan profitabilitas instalasi tenaga surya untuk rumah sakit. Aspek profitabilitas bergantung pada teknologi surya yang digunakan dan harga energi yang berlaku. Selengkapnya mengenai artikel tersebut dapat dilihat pada laman berikut:
Techno-economic assessment of solar technologies to meet hospitals energy needs
Guillem Guerrero, Alba Ramos
Hospitals present one of the highest energy consumptions per surface unit, meaning that on-site renewable energy generation and energy efficiency improvements are key to lower hospitals energy demand, external energy dependence and greenhouse gases (GHG) emissions. In this work, the feasibility from the techno-economical point of view of the installation of three solar-based energy generating technologies in hospitals in different climate locations in Europe is addressed. The potential of solar energy technologies to cover the energy needs of the hospitals under study is conducted proposing a novel design and sizing optimization methodology for on-roof installations. The profitability of the different solar-based installations will vary depending on the solar technology output (electrical, thermal or both) and on the type of energy needs of the hospital; but in all cases, profitability is mostly influenced by the price of the current energy source supplying the hospital energy needs. Levelized cost of energy (LCOE) values for on-roof photovoltaic (PV), solar thermal (ST), and photovoltaic-thermal (PV-T) installations obtained are in the range of 0.028-0.056, 0.051-0.096, and 0.053-0.128 €/kWh, respectively; for locations in latitudes from 37 N (Seville) to 60 N (Oslo) in Europe. Results from this work aim to serve as reference for similar studies in a wide range of climates.
Solar energy memainkan peran penting dalam transisi menuju kemajuan pengelolaan energi yang lebih berkelanjutan dan bersih dengan mengurangi ketergantungan terhadap bahan bakar fosil dan memitigasi perubahan iklim. Kemajuan dalam teknologi solar energy terus menjadikannya sumber energi yang lebih terjangkau dan efisien.
Beberapa artikel di atas merupakan bagian kecil dari penelitian mengenai perkembangan solar energy. Untuk mendapatkan informasi lebih lanjut, pembaca dapat mengunjungi laman International Journal of Applied Power Engineering (IJAPE) dan membaca artikel secara GRATIS melalui tautan berikut: https://ijape.iaescore.com/.