BrightSense LLC

BrightSense is a design firm that applies a new and innovative approach to energy efficiency in residential home construction.

We help architects, builders, installers, and contractors achieve the level of energy efficiency, performance, and comfort desired by their clients.

Our comprehensive approach starts with determining the client’s goals and objectives, and includes system design, selecting the most appropriate technologies and products, working with the trades ensuring installation matches the design, and does not end until after the system has been commissioned and performance per the goals and objectives has been established.

Our yearlong project design and product development experience in the Heating, Ventilation, Air Conditioning, and Domestic Hot Water appliance industries puts us in a unique position to serve today’s home builders with innovative solutions for tomorrow’s homes.

BrightSense specialty services include

  • Achieving net-zero energy homes
  • Providing guidance on modern green building techniques 
  • Optimizing a home’s envelope
  • Determining the actual heating and cooling loads
  • Developing innovative heating and cooling systems
  • Implementing ultra-efficient ground-source heat pump systems
  • Designing fresh air ventilation solutions using heat recovery, energy recovery, and earth tubes

Hans Joachim Preiss is developing net-zero energy buildings in Boulder, Colorado, where he is working to simplify net-zero to the point where it becomes affordable and mainstream. He previously held engineering positions at the boiler, water heater, and solar division of Bosch North America, and developed net-zero energy homes that were built in Canada, New England, and Georgia. Hans has a degree in Engineering Physics with specialization in Environmental Science from the University of Applied Sciences in Munich, Germany.

Contact BrightSense LLC

Contact BrightSense LLC

Hans Joachim Preiss
2330 Dartmouth Avenue
Boulder, Colorado  80305
Phone: (720) 500-5470
Cell Phone: 617-320-7780


Service Area

Services provided in:
  • Boulder County, Colorado