ENERGY SYSTEMS - With a long history in appropriate technology (now known as energy systems) PR DEI brings training and today's technologies to bear, thus substantially improving the long term value of your project. Whether your solution is advanced weatherization, micro-wind turbines, combined heat & power or solar thermal water heating, we have the technological and structural savvy to bring real cost savings and reduced carbon footprint to your project. There are many opportunities for cost savings when it comes to energy system performance. In some cases, we may just need to "tune-up" (commission) your existing system.