In a large company, the human resources consist of permanent employees and temporary employees. Both in industry, service, banking, etc., workers outsourcings also one of the supporting factors in the company’s business. Therefore, we need a study to identify reviews of their satisfaction and dissatisfaction at work. This study aims to find out the working conditions of outsourced workers in various fields of work and relate them to the two-factor theory of Herzberg. This research was carried out based on a literature review from various previous studies on outsourcing workers, work motivation and also a factor of two theories by Herzberg. The results of this study show that outsourcing workers both in Indonesia and abroad have been protected by law from the government. So that some companies have implemented outsourcing labour regulations following applicable regulations. The results of several previous studies show that the two-factor theory by Herzberg influences the job satisfaction of outsourcing workers. Both that is influenced by motivational factors and hygiene factors.

Nowadays, the growth of population and business activities in a city is creating a new problem, which is the movement of the people itself. Mass Rapid Transit (MRT), which included in public transportation with a dedicated lane continues to prove that this kind of public transportation is effective and efficient to solve that problem by reducing congestion and creating a greener environment. However, MRT requires electrical power in a relatively big number. To meet this requirement and support a greener environment, a study is conducted. The method of this study is to simulate on how much potentially a solar power plant can be built on Jakarta MRT facility and conduct an analysis on engineering, economic, regulation, and strategic of the Company itself. The result is a 451.2 kWp Solar Power Plant could be built on the Workshop Building on Jakarta MRT, has NPV of US$ 44,706.70, and payback period in 12.82 years if the implementation in year 2022. The Cost of Capacity Charge could be avoided by giving the Power Utility Company of Indonesia a Business to Business (B2B) scheme.