Powerful family of providers
Diamond is a worldwide leader in safe, clean electricity generation and energy services. We are highly experienced and well-positioned to deliver new sources of energy and innovative solutions in a rapidly changing electric generation marketplace.
Diamond is part of Mitsubishi Corporation, one of the largest industrial companies in the world. Our extended family of companies brings value across the full spectrum of the energy value chain.
The energy solution for today – and tomorrow
We provide sustainable power in North America, from project development, operations & maintenance, and energy commodities trading to asset management and ownership.
We generate and supply clean power
We trade electricity and gas across North America
We deliver locally generated solar power to customers.
Projects designed to meet your needs
Our customers’ have unique needs. We have the experience and innovative capabilities to meet those needs – across a wide spectrum of power generation technologies.
In today’s world, global brings more value
With over 200 offices in 90 countries, Mitsubishi Corporation offers the right business philosophy, connections and results. Through Mitsubishi Corporation, Diamond has sister-affiliated companies worldwide performing similar services in the energy industry on different continents. We bring that global knowledge to your project.
See how Diamond can make a world of difference to your next energy project.
Are you ready for a long-lasting solution?
From community green energy solar arrays to natural gas combined-cycle electric generating facilities, from financing to construction, operation, management and energy trading, we are ready to build a powerful solution for you.