Sunlight as a renewable energy source that produces heat energy from solar radiation. Radiation is the propagation of energy without an intermediary substance, so that solar energy can reach the earth's surface through radiation due to the vacuum between the Earth and the Sun. Radiation is the only energy that can propagate through a vacuum and reach the earth's surface through direct radiation, diffuse radiation, and total radiation. Solar panels are devices that can convert sunlight into electricity. The study aims to understand the effectiveness of solar panels in generating electricity, identify factors that affect the performance of solar panels in residential environments, and assess the utilization of Energy from Solar Panels that Can Reduce Monthly Electricity Costs at Home. The research methodology used is qualitative. The results of this study, the utilization of solar panels in residential environments shows varying effectiveness, Environmental factors such as temperature, lighting, cleanliness, and extreme weather conditions play an important role in the performance of solar panels in households, Utilization of solar panel energy in households can reduce monthly electricity costs.
 
 

The electoral system is a form of representative democracy which can be understood as a means of distributing power to the people. In general, there are three types of electoral systems implemented throughout the world, namely majority systems, proportional systems and mixed systems. However, this article only discusses open and closed elections, each of which has its own advantages and disadvantages. This article aims to analyze the open and closed proportional electoral systems in Indonesia. The type of research used is legal research by considering the problems of studying documents used as reference documents, especially legal regulations such as basic legal documents and other secondary legal documents such as literature, books, scientific works and scientific articles. which discusses how to analyze open and closed proportional electoral systems in Indonesia.

This study aims to determine the effect of promotion and price on consumer purchasing decisions at Dexalove Collection Stores. To determine the number of samples in the study, researchers used the Slovin formula, where the Slovin formula was used when calculating data in the form of a survey with the population in this study taken from consumers who shopped at the Dexalove collection in April 2023 as many as 1,816 consumers. So, it can be concluded that the sample in this study was 95 respondents with a sampling technique using purposive sampling. The test methods in this study are validity test, reliability test, normality test, multicollinearity test, heteroscedasticity test, multiple linear regression analysis test, correlation determination test, f test, and t test. The results obtained in this study showed that the f test results were sig 0.000 <0.05 and the t test results were sig (0.000 <0.05). that there is an influence of promotion and price on consumer purchasing decisions at the Dexalove Collection Store where this can be proven by the results of the data quality test, namely the value of r count is greater than r table. And the correlation value in this study shows that the relationship between the effect of promotion and price on consumer purchasing decisions at the Dexalove Collection Store concludes that the results of the degree of correlation coefficient are high.