Impact Solar Group ("ISG") was founded by Impact Electrons Siam and Mitsubishi Corporation in 2015. ISG's objective is to transform the energy market in the Asia Pacific region from utilizing conventional power plants for energy to utilizing renewable, distributed and digital energy instead.

ISG's services include everything solar related; from rooftop to parking to storage. The company's key flagship project is the largest multi-site private PPA in Thailand, resulting in more than 1.1B Baht reduction in electricity expense over the contractual period.

Currently, ISG has over 93MW in operation overall with the goal of reaching 500MW by 2024. The company has provided clean energy across Thailand and has an investment of over 2.5B Baht. With over 130 million units of electricity supplied annually, ISG has offset over 1.7M tons of CO₂ since its inception. The company is committed to ensuring that all stakeholders benefit from the partnership and that everybody has access to clean, affordable energy.