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Human activities in recent years with the excessive emission of greenhouse gases have had a negative impact on increasing global temperatures. In this regard, one of the best ways to control it is to move toward sustainability with more use of renewable energy. Therefore, this study aims to assess the indicators of sustainable energy, explore benefits of sustainable energy and evaluate strategies to enhance energy sustainability in line with Sustainable Development Goal (SDG) 7.

Quantitative research strategy was adopted. Questionnaires were developed and administered through convenience and snowball sampling techniques to professionals in the energy sector. Data collected was validated by using Cronbach’s alpha coefficient and discriminant validity, whereas objectives were analyzed by using the relative importance index, mean score ranking and Kruskal–Wallis test.

From the findings, the significant indicators of sustainable energy were as follows: reduction in greenhouse gas emissions from energy production, use of renewable energies and policies on proper utilization of energy resources. Furthermore, a reduction in greenhouse gas emissions, less harm caused to the environment and an increase in the economic and social development process were the major benefits of sustainable energy. Finally, the findings of the study revealed that a strong and accounted policy program, adopting sustainable energy indicators and strategic communication are the significant strategies needed to be put in place to enhance energy sustainability.

The study serves as a reminder to policymakers of the crucial role they have to play in enhancing energy sustainability by putting in place suitable policy programs and methods.

The originality of this study is that it is arguably a pioneering study in Ghana and contributes to the body of knowledge on energy sustainability.

In comparison to other countries, power generation in Sub-Sahara Africa is poor. Public–private partnership (PPP) model has become increasingly popular for addressing infrastructural challenges, especially in the power sector. The purpose of this study is to evaluate and classify the factors that influence public sector involvement in Ghanaian PPP power projects.

Using purposive and snowball sampling techniques, questionnaires were used to gather responses from experts in the PPP power sector in a two round Delphi survey. Analytical tools adopted were descriptive statistics, mean score ranking, Cronbach’s alpha and factor analysis.

The most significant factors that influence public sector involvement in PPP power projects were: achieving improved value for money; access to additional capital; increased certainty of projects; greater efficiency of project delivery services; and improved ability to deliver new infrastructure. From factor analysis, the four components were: value for money and efficiency; capital and skills; innovation and technology; and project delivery.

Government bodies in the power sector will benefit from the findings, as it would aid them develop policies that would strengthen regulatory structures as well as institutions.

Inefficiencies in the power sector resulting from underinvesting and underselling reduce the ability of governments to adequately finance energy projects. The purpose of this paper is to explore mechanisms of energy financing, benefits and challenges associated with innovative financing of energy infrastructure as well as strategies to improve innovative financing of energy infrastructure.

Questionnaires were used to elicit responses from respondents. Seventy-eight responses were retrieved. Mean score ranking, Kruskal–Wallis test and discriminant validity were the analysis conducted.

Partial credit guarantee; partial risk guarantee; credit enhancement; and loan guarantees were the significant mechanisms. Production efficiency; reduce pressure on public budgets; access to management expertise; and self-sustainability of infrastructure facilities were the significant benefits. Lack of transparency and adequate data for risk assessment; high up-front cost; heterogeneity, complexity, and presence of a large number of parties; and lack of a clear benchmark for measuring investment performance were the severest challenges. Complete transparency and accountability; political stability and public view on private provision of energy infrastructure services; and macroeconomic environment were the significant strategies.

This study is beneficial to energy sector as the current government of Ghana hints on willingness to involve private sector in management of the power sector.

The novelty of this study is that it is a pioneering study in Ghana on innovative financing of energy infrastructure.