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All Journal Jurnal Administrasi Pendidikan Indonesia Jurnal Inovasi Pendidikan dan Sains KOLONI Journal of Gastro Tourism (JOGASTO) Blantika : Multidisciplinary Journal Jurnal Global Ilmiah
Endang Widayati
ETC. KEBT dan Konservasi Energi, Kementerian Energi dan Sumber Daya Mineral Jl.Poncol No.39, Ciracas, Jakarta Timur
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STRATEGY FOR CAPACITY DEVELOPMENT OF STATE CIVIL APPARATUS IN ENERGY CONSERVATION AS A LEVER FOR ACHIEVING NATIONAL ENERGY CONSERVATION TARGETS Widayati, Endang; Asih, Sri; Supriyadi, Supriyadi
Jurnal Administrasi Pendidikan Vol 21, No 1 (2024): APRIL 2024
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jap.v28i3.39986

Abstract

The influence of service quality, product quality, and product price on consumer satisfaction at teras malioboro 1 yogyakarta Wigati, Erna; Isnugroho, Endro; Widayati, Endang; Haryanto, David Ramadhan Putra; Kustini, Henny
Journal of Gastro Tourism Vol. 2 No. 2 (2024): August 2024
Publisher : Surya Hijau Manfaat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/jogasto.v2i2.458

Abstract

This research aims to determine the effect of service quality, product quality, and product price on consumer satisfaction at Teras Malioboro 1 Yogyakarta. Teras Malioboro 1 Yogyakarta is located on Jalan Margo Mulyo, Ngupasan, Gondomanan, Yogyakarta City. This study uses primary data with a questionnaire method where the number of respondents is 100 respondents selected using purposive sampling technique with a quantitative approach carried out using multiple linear regression analysis with normality test, multicollinearity test, heteroscedasticity test, determination coefficient test (R²), t-Test, and f-Test. The results of the tests carried out indicate that service quality has a significant effect (α = 5%), product quality does not have a significant effect (α = 5%) and product price has a significant effect (α= 5%) on consumer satisfaction at Teras Malioboro 1 Yogyakarta with a significant (α = 5%). With the percentage obtained from the determination coefficient test is 80.2% and proven by the researcher's observation with the existence of good service quality, product quality, and product prices in a purchase, it will create satisfaction for its consumers and play an important role in forming consumer satisfaction.
ESTIMATING ENERGY SAVING POTENTIAL BY TAKING INTO ACCOUNT INTERDEPENDENCE EFFECT CASE STUDY: HIGH RISE OFFICE BUILDING IN JAKARTA Widayati, Endang
Jurnal Inovasi Pendidikan dan Sains Vol 2 No 1 (2021): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Nahdlatul Wathan Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51673/jips.v2i1.476

Abstract

Abstract: The purpose of this study is making comparison between calculation of the potential for energy savings without and with taking into account the interdependency effect based on a case study in a conditioned high rise office building in Jakarta. Accurate estimation of the energy saving potential will increase the confidence level in bankable investment of energy saving projects. This will minimize the uncertainty of achievable energy savings which can prevent investment risks during implementing energy conservation and efficiency projects. The results of this study based on a study case, indicate that estimated energy savings of ESM-1 e.g. retrofit of lighting increase 4.29% when the interdependency effect is taking into account. ESM-2 e.g. installation of variable speed drive (VSD) on the air handling unit (AHU) shows the estimated energy saving increase 22.75% by taking into account interdependency effect. The effect of this interdependence both ESM-1 and ESM-2 is a reduction in cooling load in buildings. Totally, the calculation of the interdependency effect will increase the percentage of the total estimate of potential energy savings from 34.23% to 39.05% based on the energy baseline with a predefined baseyear periode, around 4.82% increased. The calculation of the interdependency effect will be very influential in minimizing uncertainty when the projects are financed by an energy performance contract mechanism whether a guaranteed or shared saving scheme. The measurement and verification energy saving during reporting period should be conducted in the future to compare the energy saving projection before ESMs implementation and measurement and verification results.
PENERAPAN KOMPONEN TEKNOLOGI PRODUKSI DALAM SISTEM BUDIDAYA TERHADAP PRODUKTIVITAS PADI BERAS MERAH DI KECAMATAN SEMANU KABUPATEN GUNUNGKIDUL Widayati, Endang
KOLONI Vol. 1 No. 3 (2022): SEPTEMBER 2022
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v1i3.310

Abstract

The potential for dry land agriculture in Indonesia is very large, the area of ​​dry land in Indonesia reaches 9.7 million hectares. However, there are many problems in dry land farming systems, including the problem of marginal land with limited water availability, the underdeveloped cultivation technology, the limited variety of suitable plants, and the low income of farmers. The aims of the research are (1) to determine the intensity of the application of production technology components (basic and optional components) in the brown rice cultivation system and their effect on productivity (2) to identify the factors that influence the intensity of the application of these technological components. The basic method used is descriptive and explanative analysis methods. Determination of the sample of brown rice farmers (respondents) as many as 60 people was carried out by simple random sampling technique. The analytical method used in this study is the proportion test and the Chi-Square test. The results showed that (1) the application of intensive basic technology components was 68.33% and 31.67% which were not yet intensive. As for the selected technology component, which is intensive is 71.67% and which is not yet intensive is 28.33%. (2) Farmers' intensity in applying technology components can be influenced by factors of land area, farmer's age, level of education and counseling. By applying the components of production technology in the brown rice cultivation system, productivity can be increased. Keywords: Production Technology Components, Cultivation Systems, Productivity
Pengaruh Variasi Daya Terpasang dan Pengembangan Indikator Kinerja Energi untuk Solusi Rumah Hemat Energi Widayati, Endang; Sulardi, Sulardi; Sikumbang, Supriyanto
Blantika: Multidisciplinary Journal Vol. 3 No. 8 (2025): Special Issue
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/blantika.v3i8.388

Abstract

Global reliance on fossil fuels poses significant challenges, including resource scarcity, price volatility, and the escalating climate crisis. The residential sector, accounting for a substantial portion of global energy consumption (30%) and CO2 emissions (28%), holds immense, yet often untapped, potential for energy efficiency. The study of Energy Performance Indicators (EnPIs) is therefore crucial. EnPIs serve as vital benchmarking tools to effectively measure, compare, and evaluate the energy performance of residential properties, thereby facilitating informed investment decisions for efficiency enhancements. This study aims to establish the relationship between installed power capacity (kVA) and electricity consumption per Gross Floor Area (GFA) to derive relevant EnPI values as a baseline. A quantitative approach utilizing a cross-sectional survey was employed. Data on installed power and monthly kilowatt-hour (kWh) consumption were collected from a diverse sample of residential units, encompassing common power variations (1300 VA, 2200 VA, 3300 VA, and 6600 VA). The collected data underwent analysis using descriptive statistics and regression analysis to identify key patterns and correlations. The findings indicate a clear trend: the EnPI (kWh/m²/year) increases with higher installed power variations. Specifically, the average EnPI values were found to be 50 for 1300 VA, 80 for 2200 VA, 97 for 3300 VA, and 118 for 6600 VA. A strong positive correlation was observed between power variation and EnPI (R² = 0.851), suggesting that 85.1% of the variation in EnPI is attributable to the installed power capacity. Furthermore, the analysis revealed that 91.19% of monthly kWh consumption is influenced by kVA. Based on these findings, specific kWh-month/kVA ratios were derived (e.g., 321 for 1.3 kVA; 455 for 2.2 kVA; 490 for 3.3 kVA; and 521 for 6.6 kVA). These two sets of developed EnPIs—kWh/m²/year and the kWh-month/kVA ratio—are considered crucial and can serve as valuable references for developing effective energy efficiency and conservation strategies within Indonesia's residential sector.
Implementation of Energy Management System ISO 50001 to Achieve Energy Performance Improvement and Support National Energy Security Widayati, Endang; Tapparan, Ezrom Max Donnald; R Nurwini, Anggraini
Jurnal Global Ilmiah Vol. 2 No. 7 (2025): Jurnal Global Ilmiah
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/jgi.v2i7.242

Abstract

Efficient energy management is one of the key strategies in supporting national energy security and climate change mitigation. ISO 50001, which has been adopted as SNI ISO 50001, provides a systematic framework for organizations to improve energy performance through continuous improvement. This study aims to analyze the implementation of the ISO 50001-based energy management system (EnMS) in Indonesia, identifying the benefits, success factors, and challenges faced by organizations. The research method uses a direct observation approach at pilot companies during the 2012–2017 period, secondary data analysis through Online Energy Management Reporting (POME), and a literature study of organizations that have implemented or obtained ISO 50001 certification. The results of the study show that the implementation of EnMS has resulted in energy savings of 1,409,476 MWh eq, energy cost savings of more than USD 60 million, and a reduction in CO2 emissions of 938,358 tons by 2017. In 2021, the number of certified companies increased significantly, with total energy savings reaching 11,598,000 MWh eq and CO2 emissions reduced by 4,720,083 tons. In addition to environmental and economic impacts, EnMS also provides added value in the form of increased competitiveness, regulatory compliance, corporate branding, and contributions to national energy conservation targets and Sustainable Development Goals (SDGs). In conclusion, the implementation of ISO 50001 has proven to be an effective sustainable solution that not only improves energy performance but also strengthens national energy security and supports the transition to green energy.
Co-Authors Haryanto, David Ramadhan Putra Isnugroho, Endro Kustini, Henny R Nurwini, Anggraini Sikumbang, Supriyanto Sri Asih, Sri Sulardi . Supriyadi Supriyadi Tapparan, Ezrom Max Donnald Wigati, Erna