Achieving energy sustainability by using solar PV: System modelling and comprehensive techno-economic-environmental analysis

This work aims to reduce the energy consumption of existing buildings through retrofitting and converting them into net zero energy buildings (NZEBs). Various retrofits for an existing academic building were modeled and analyzed using REVIT software. Energy consumption was reduced to approximately 34% through retrofits, and a Solar System of 41.6 kW was integrated to meet the reduced energy demand, consequently converting the building into an net zero energy building (NZEB). Furthermore, environmental and economic analyses were conducted, and the results show a reduction of 32.8 metric tons of CO2 emissions per year as a result of retrofitting the building, converting it into an net zero energy building. The building envelope retrofits and electrical appliances have a payback period of 2.96 and 2.62 years, respectively, whereas the proposed Solar System has a payback period of only 2.3 years. Moreover, the building was rated using the Leadership in Energy and Environmental Design (LEED) rating tool, and it qualifies for silver certification after retrofits and the integration of renewable energy sources (RES). The reduction in energy consumption and integration of renewable energy sources contribute to achieving Sustainable Development Goal (SDG) 7, and reduced CO2 emissions save climate variations, which leads to achieving Sustainable Development Goal 13. Graphical Abstract

Reduction in energy consumption and CO2 emissions by retrofitting an existing building to a net zero energy building for the implementation of SDGs 7 and 13

The impact of building enclosure type and building orientation on indoor thermal comfort –––A case study of Kashgar in China

The Sustainable Development Goals (SDGs) represent a central framework for guiding sustainable urban development. However, it is not clear how and where SDG 11 (Sustainable Cities and Communities) is being implemented, and how such implementation might be improved. We investigate this subject by analyzing United Nations (UN) SDG Good Practices data from 2018 to 2021, using content analysis, classification, and descriptive statistics. The resulting analysis and classification is new in this field. We applied five criteria to the 336 SDG 11 responses: (1) geography; (2) actors; (3) progress toward targets; (4) areas of implementation; and (5) scale of action. Overall, 86 of the 193 countries that adopted the 2030 Agenda submitted at least one SDG 11 good practice. Thirty-three countries contributed 73.8% of the total, and most developing countries did not make submissions. A very small number of responses (between 2.6 and 9.1%) addressed equity-related targets. Good practices from developed countries were usually more technology-oriented and system-forming; developing countries typically focused on issues of day-to-day concern. This analysis points to the need for better and more systematic reporting on SDG 11 implementation, a more active public sector role in SDG implementation and reporting, more focus on dimensions related to social equity, and better formulation of urban sustainability targets and indicators. 

Implementation of Sustainable Development Goal 11 (Sustainable Cities and Communities): Initial Good Practices Data

The Sustainable Development Goals (SDGs) provide a comprehensive framework for addressing social, economic, and environmental challenges facing countries around the world. The role of parliaments in implementing the SDGs has been widely recognized, but the extent of their impact remains uncertain, particularly in developing countries such as Pakistan. This paper aims to investigate the role of parliament in implementing the SDGs in Pakistan and to draw lessons from other countries that have successfully integrated the SDGs into their legislative processes. To achieve this objective, a qualitative research design was employed, which included a comprehensive analysis of lessons learned from other countries. The findings suggest that while the Pakistani parliament has taken steps towards aligning its policies with the SDGs, there is still a long way to go in terms of effective implementation. Lessons learned from other countries indicate that parliamentary oversight, public participation, and capacity building are key factors in successful implementation of the SDGs. The paper concludes with a series of recommendations for enhancing the role of parliament in implementing the SDGs in Pakistan.

The Role of Parliamentarians in Implementing SDGs in Pakistan: A Qualitative Study Incorporating Lessons Learned across Eight Countries

The United Nations (UN) has introduced 17 Sustainable Development Goals (SDGs) intending to achieve a conventional trio of social, economic, and environmental prosperity across the world. Pakistan is making a fair contribution to SDG achievement under its ‘Vision 2025’. However, the introduced strategy for SDG implementation is a sectoral based approach which leads to severe resource inefficiency. The objective of this study is the development and implementation of a nexus strategy of SDG 6 (Clean Water and Sanitation), SDG 7 (Affordable and Clean Energy), SDG 11 (Sustainable Cities and Communities), and SDG 13 (Climate Action) in Pakistan due to their indepth interlinkage and interdependence, to achieve sustainability in Energy, Water, and Environment. This study comprises an onfield Energy-Water-Sustainability assessment of 24 public sector premises across Punjab to create a pilot model for future implementation. The Pearson correlation analysis of the SDGs substantiates the argument of the nexus approach. The results of this work show the energy conservation potential of approximately 12.8 MW and renewable energy installation potential of 40.4 MW to achieve SDG 7. Moreover, rainwater harvesting is calculated to be 0.035 million cm3 per annum, contributing to approximately 7% reduction in water use to achieve SDG 6 and minimizing the environmental impact on cities by reducing 14.8 million tons of Greenhouse Gases (GHGs) per annum to achieve SDG 11 and 13. The results show that due to indepth interlinkage, the nexus implementation approach enhances the execution process while eliminating resource duplication to reduce inefficiency. 

Nexus implementation of sustainable development goals (SDGs) for sustainable public sector buildings in Pakistan

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Nexus implementation of sustainable development goals (SDGs) for sustainable public sector buildings in Pakistan