Professional Services

Having consulted and collaborated with teams and NGOs in more than 30 countries and with Native American tribes… Johnny brings supportive, environmental, and ecological ethics and understanding to team efforts.

Johnny responds timely to government, NGO, non-profit and enterprise requests and will work closely with you to determine the viability of your project. He will then help design and assemble the professional team, and specify the equipment required to bring your solar vision into reality.

In addition to technical expertise, clients benefit from his comprehensive approach to problem solving. Johnny engages and educate clients with the skills and knowledge needed to create and maintain successful, community-supported solar projects.

Johnny touring solar installations in Spain.

For Organizations

For Organizations

Renewable energy project management

Developing solar training centers


Renewable energy curriculum design and review

Planning and design of hybrid renewable energy micro-grids

Solar advocacy and speaking engagements

For Individuals

For Individuals

Site evaluation for solar, wind and micro-hydro installations

Plan review for residential and commercial solar projects

Greenhouse design/build supervision

Evaluation of off-grid energy alternatives

End-user education

Contact Johnny


It’s been over 14 years since you hired me to work at Solar Energy International. You were a wonderful boss and teacher.

You continue to amaze and inspire me with your passion for renewable energy and your desire to make a difference in people’s lives.

Kathy Fontaine, Administration & Student Services, Solar Energy International (SEI)

Johnny knows it all, and he knows everybody who’s anybody in renewable energy.

Time spent with Johnny is up-time, down-time, and sideways. He’s one of the funniest people I know. He’s always a pleasure to work and play with.

Windy Dankoff, Consultant, Writer, Solar Water Pumping Expert, Sculptor

Johnny Weiss, co-founder of Solar Energy International, has helped make SEI a world-class renewable energy training organization. Whether you are a solar industry professional or a do-it-yourselfer, it is the place to learn the latest installation techniques and get hands-on, unbiased training.

David Katz, CTO/Founder, AEE Solar Inc.