In the pursuit of responding to climate change and reducing Greenhouse Gases (GHG) emissions caused by human activities, restrictions and regulations took place by international policymakers to limit the harmful effect on the environment. Thus, Energy-intensive industries are experiencing an unprecedented challenge due to more strict rules and limitations by governments in the EU and Sweden on unsustainable practices. 

The purpose of the study is to highlight the barriers and benefits of investing in Energy Efficiency Technologies (EETs) such as Waste Heat Recovery (WHR) and Electric Energy Storage Systems (EESS) in a Swedish foundry firm. Further conduct a feasibility study of the selected technologies in the foundry energy system to understand to which extent improvements in Energy Efficiency (EE), cost reduction and GHG emissions take place. Further, contribute to the literature of Energy Management (EnM) by presenting a framework for decision-makers in energy-intensive industries to enable the implementation of EETs. 

A single case study took place to generate and relate important theories in managerial practices. Semi-structured and structured interviews were conducted with experts involved in the foundry industry, EETs, and energy consultants. Moreover, documents were also provided to extract data. The qualitative data analysis was conducted using the framework analysis method while the quantitative analysis was performed using modeling through RETScreen software. 

The results indicate that the main barriers to EETs are financial aspects, while environmental aspects were perceived as the most significant benefits. Furthermore, the feasibility study conducted proved a reduction of 4% in energy consumption, a reduction of 3% in annual GHG emissions, and a payback period of 5 years which was unfavorable for the investigated foundry. Further, the authors recommended an EnM framework based on EETs to ease their integration.