Energy with Integrity. Since 1994. Trinity has grown into the largest privately held residential solar company in the nation - employing more than 1,800 people and operating in communities across NJ, NY, CT, MA, PA, MD, RI and DE. We believe that solar is the most practical form of renewable energy on the planet and seek to make it accessible to as many people as possible. Solar can help to lower your cost of living, protect the environment and improve your quality of life.