1. Introduction
The world’s population expansion has prompted individuals to consider how to best utilize the resources that are now available. Now that we are conscious of finite resources, the quest for new production routes is becoming increasingly vital and sustainability is gaining prominence in a variety of sectors of life, whether environmental, economic, or social [
1]. The United Nations (UN) Sustainable Development Goals (SDGs), also known as environmentally sustainable development, are a framework of action carried out by the UN as an important step in achieving global development [
2]. The Sustainable Development Goals (SDGs) are developments that ensure a continuous improvement in economic well-being, the sustainability of community social life, the quality of the environment, and justice through the implementation of governance that can ensure the quality of life from one generation to the next. As a result, the SDGs have become a point of reference in national and regional development, beginning with the planning, implementation, monitoring, evaluation, and reporting stages. Sustainable development is not only necessary to meet people’s ever-growing needs for a better life and solve prominent social problems but is also an inevitable choice for sustained, sound, and high-quality economic development [
3]. In addition, the SDGS are interrelated and can be described in terms of human development and environmental sustainability [
4].
One of the 2020–2024 National Medium-Term Development Plans that is in line with SDGs is the development of net energy and affordable housing [
5]. The usage of new renewable energy sources is compatible with the notion of sustainability (EBT). Renewable energy must be used in ways that promote sustainability, regional growth, and environmental friendliness. Sustainability is described as energy that may be utilized indefinitely without a regard for time, hence avoiding the problem of energy shortage, whereas regional development is defined as regional development that strives to develop independence based on the presence of each region. The idea of energy independence is completed by the ecologically friendly component, which aims to be in harmony with the environment, has no adverse long-term effects, and is not exploited [
6].
The livestock sector is one of the leading business sectors in Indonesia, but livestock contributes to increasing global warming that comes from dirt and animal extraction. The livestock sector contributes to methane gas (CH
4), dinitrogen oxide (N
2O), carbon dioxide (CO
2), and ammonia, which can cause acid rain [
7]. Ruminant beef cattle generated the most CH
4 gas from waste products of feed enteric fermentation activities (76.42%), followed by N
2O produced by goat manure management (108.428 (Gg CO
2e,) or 17.12%). The factors that impact, among other things, the population of ruminant livestock are greater than for the population of other livestock [
7]. Because the heat capture power of CH
4 gas is 25 times that of CO
2 [
8], it has a bigger impact on global warming than CO
2 gas. While N
2O gas emits 298 times more heat per unit weight than CO
2, it contributes to greenhouse gas emissions (CHG emissions) [
9]. CHG is a state in which the earth’s temperature rises due to changes in the composition of the gases in the atmosphere that surround it (known as greenhouse gases such as H
2O, CO
2, and CH
4), causing the heat of the sun to be trapped in the earth’s atmosphere [
10]. The utilization of biogas plays an important role in livestock waste management because methane is a more dangerous greenhouse gas in global warming when compared to carbon dioxide. The utilization of alternative energy sources from livestock waste provides many advantages, namely it is a quality fuel, is odorless, produces slurry, reduces environmental contamination, and is a more economical re-cycle of the process. Even though lowering GHG emissions is urgent, the transition process is anticipated to need time, good economic conditions, technical advancements, and access to resources [
11,
12]. However, the energy transition must be quick enough to avoid increasing environmental problems, potential shortages, and economic decay [
13]. Biogas technology may be identified as a key element in the use of Mixed Crop and Animal (MCL) Farming Systems for managing livestock manure and so minimizing environmental issues from nitrate contamination in the ground, ammonia gas pollution, and stool pollution in water [
14]. Dealing with waste is the main issue in the specific area of concern that is waste. We can process at least some of the waste materials and use them for our benefit by recycling them. A new facet of the circular economy is emerging in this regard [
15].
The Indonesian government has enacted numerous efforts to develop biogas, beginning with access to funding, direct use, technology, coordination, sustainable development, governance, investment, and policies, all of which are viewed as challenges as well as opportunities for the Indonesian government in implementing biogas development. Education and technical assistance for biogas recipients (in terms of digester maintenance, raw material sustainability, and the socioeconomic impact of biogas) are also considered strategic efforts in biogas development [
16]. According to data collected by the Directorate General of EBTKE (Energi Baru Terbarukan dan Konservasi Energi) on the implementation of direct biogas development as of 29 May 2020, household biogas installations have reached 47,505 units throughout Indonesia, producing biogas of 75,044.2 m
3/day or around 26.72 million m
3/day per year. Biogas constructed with state funds (APBN Ministry of Energy and Mineral Resources, Ministry of Environment, Ministry of Agriculture), donors (Hivos), Special Allocation Funds, other ministries/agencies, private parties, and non-governmental organizations comprise the entire biogas.
The fundamental purpose of development is human development. The goal of stable economic growth and sustainable social development is for the better development of people; human development is the most direct embodiment of social and economic development [
3]. The key to the development of household biogas is raising awareness about the use and benefits of biogas. Public trust in investing in and using biogas must be increased, and public awareness of the benefits of domestic biogas, both technical and economic, must be increased. Although almost all of the users in this program are already aware of how to use and maintain the biogas digester, they are less aware of how to keep the biogas digester active and functioning properly. Thus, increasing public awareness through training and education linked to participatory community empowerment programs is critical for increasing biogas technology adoption [
17].
Community empowerment programs carried out in various fields by various parties, both government and non-government, have good intentions and apply the concepts of community empowerment, but these noble programs are often trapped in the logic of “projects” that emphasize administrative accountability, namely how much the budget provided and how many activities or programs are implemented, rather than social responsibility, namely how much significant positive change occurs [
18]. The purpose of this study is to evaluate the process of community empowerment in the use of biogas, as well as to determine the effect of community empowerment on the sustainability of the use of biogas as a sustainable energy source.