The Shore-to-Ship Power System (SSP), also known as cold ironing, represents an onshore power supply technology for berthed vessels through the deactivation of shipboard power generation systems. This technology has been globally implemented since the 1980s to mitigate atmospheric emissions including sulfur oxides (SOx), nitrogen oxides (NOx), particulate matter (PM), and greenhouse gases (CO₂, CH₄, N₂O). In the Indonesian context, SSP implementation is regulated through Ministerial Regulation PM 50/2021 and Director General Circular SE- DJPL 22/2022, focusing on 21 major ports. This study specifically examines the financial viability and environmental impact of SSP implementation at LNG refinery condensate terminals, which present unique operational and safety requirements. Financial analysis reveals a negative Net Present Value (NPV) of -Rp17.22 billion, an Internal Rate of Return (IRR) of -5.44%, and a Benefit-Cost Ratio (B/C) of 0.32, indicating economic infeasibility. However, SSP implementation offers strategic non-financial benefits through enhanced corporate sustainability reputation. From an environmental perspective, while SSP reduces portside emissions by 129.86-ton CO₂e/year, it simultaneously increases Gas Turbine Generator (GTG) emissions by 129.6-ton CO₂e/year, resulting in negligible net emission reduction. These findings underscore the necessity for innovative financing schemes and renewable energy integration to improve both project viability and environmental outcomes. This research provides significant contributions to the development of safe, efficient, and sustainable SSP systems, particularly for LNG refinery facilities.