The experience of offshore wind farm development, operation and maintenance were shared in this article base on offshore wind farm developer's view point. The success factors of offshore wind farm development were summarized as performing risk avoidance and financial planning based on technology. Synera Renewable Energy (SRE) is a leading developer who standing in Taiwan and developing offshore wind farm among Asia-pacific region including Japan, Korea and Australia. Many international partners value SRE's more than 10 years of experience in developing markets from scratch. SRE's vision is to jointly promote the energy transformation in the Asia-Pacific region and achieve the sustainable goal of net-zero carbon emissions.