Professional Member Directory


Listed below are MASES Professional Members who have chosen to have their professional interests published on this MASES website.    


John R. Essig

Energy Researcher,  Zero-Net-Energy Home/Building Designer,  Sustainability Consultant

  • Director, U.S. Energy Institute (USEI) -
  • Research focus:  Cost-Effective Zero-Net Energy Homes, Buildings and Transportation
  • Actively Consulting in Energy Efficiency, Renewable Energy, Sustainable Design, etc.
  • Certified Passive House Consultant (CPHC) based in DC Metro area, but serving world-wide.
  • Solar PV interest include Community Solar/Solar Coops/Solarize Programs, Solar EV Charging
  • Broader energy interests include Energy Independence, robust Energy Security, Microgrids.
  • MASES Professional Member (Acting Chair); 
  • ASES Supporting Professional Member (member Solar Buildings Technology Division)
  • *** Always happy to discuss ways of making our world truly secure and sustainable. ***
  • Contact John at USEI by e-mail at, or by phone at 703-665-6548 (o).    

Other Professional Members...

Add your professional profile and/or interests here!


  • Simply contact MASES to have your current professional interests added to this directory.


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MASES is a regional chapter of the American Solar Energy Society. 

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