Renewable energy-related issues are a growing area of concern worldwide. In particular, the photovoltaic industry is also an area where active investments are made by older generations because it is suitable for long-term stable investment. Some call it “Solar Pension”. The world's leading investment expert, Warren Buffett, said, “I’ve got $3 billion right now ready to invest in solar”. It is natural that the interest of investors like this leads to technology development and industrial development, but domestically we have not seen the same development. This is because the government's strong regulatory policies are being enforced, the market is shrinking, and investors' anxiety is growing. However, there is one company that is operating successfully in the field of new and renewable energy based on its success in the overseas market. A company that is recognized for its differentiated know-how and technology, “WH Energy Co., Ltd.”.