Dan Lepinski, P.E.
Serving the Solar Industry Since 1972
Latest News
New Texas Solar Laws
Effective September 1, 2023
"A municipality may not apply a municipal building code to the construction of a solar pergola."
HB 3526 Link to the law.
See our "Resources Page" for copies of the new law, plus existing "solar" laws.
Solar-powered Eagle Cam!
Every year, we "give back" by helping schools, charities, and non-profit organizations. We donate consultation time, provide designs, and assist very deserving groups to obtain solar energy equipment at low to no cost. 2020 was a very unique year for us in many ways - and one project in particular. Click the links below for more information.
JBS Eagle Cam History & Story
Eagle Cam Installation Day Video
5 minute video
Eagle Cam Streaming Video
Live video and sound! Infrared LED lighting at night gives a black & white image. Color otherwise.
JBS Eagle Cam Official Website
Info, History, Glossary, & more!
Useful Links
- Expedited Solar Permits
- Expedited Solar Permit Checklist
- Texas Board of Professional Engineers
- North Central Texas Council of Governments Regional Codes Coordinating Committee
- North Central Texas Council of Governments Electrical Advisory Board
- US Dept of Energy Building Codes Assistance Project
- North Texas Renewable Energy Group
- Solar Glossary
- Oncor Interval Data
NTREE specializes in working with you
from before the beginning of your project, to the end of your
project and beyond. We don't sell or install solar equipment. This
leaves us free to speak freely with you about any aspect of your
system, the hardware, and assist you in an unbiased manner in your
selection of an installation contractor. No matter how complex the
topic, all communication with you will be conducted in plain English
- guaranteed.
We always try to go "above and beyond"
what's expected. We do our best to anticipate issues before they
arise, and address them before they become a problem for you.
We're recognized for our work and
skills throughout Texas, America, and internationally. Code
compliance classes we provide gives us immediate credibility and
rapport among Permitting and Inspections officials, and others.
Based in North Fort Worth, Texas, we
are Licensed by the State of Texas Board of Professional Engineers,
and fully Insured.
Experience
- 45+ years - Power Design Engineer, Solar and Renewable Energy
- Residential Solar Systems Designs Up to 250 kW
- Commercial Solar Systems Design Up to 20+ Megawatts
- Utility Scale Photovoltaic Systems to 200+ Megawatts
- Inverter and Electronics Design
- Management and Oversight of Teams of Engineers
- Code and Standards Compliance
(Products and installed systems)
- ... and more.
Committees,
Boards & Technical Panels
- Voting Member, UL 1741 Standards Technical Panel (author the UL 1741 Standard)
- IEEE 1547 Standards Development Committee (part of UL 1741)
- National Electric Code Industry
Workgroup
(Collaborate with NEC Code Panel 4 on NEC Articles 690, 705, and 710) - Solar American Board for Codes and Standards (Solar ABCs)
- Electric Power Research Institute ("EPRI") Smart-Grid Development Task Force
- Sunspec Alliance - Codes and Standards
- Intertek / ETL Consultancy Staff - Codes and Standards Compliance[1]
- State of Texas Contracted Subject
Matter Expert on Solar Energy
- United States Department of Energy
National Presenter - BCAP Program (2017 & ongoing)
- Irving Texas Independent School
District C3E Advisory Board Member
("C3E" is the Center for Energy & Environmental Entrepreneurship) - Tarrant Community College District Curriculum Committee
- Advisor, North Texas Renewable Energy Group (North Texas Chapter of the Texas Solar Energy Society)
[1] Members of the
Intertek Consultancy Staff are independent, highly-vetted experts
who serve as subject matter experts for Intertek/ETL, a Nationally
Recognized Testing Laboratory authorized by OSHA to certify solar
energy equipment as compliant to Underwriters Laboratory ("UL")
Safety Standards.
Special Awards
& Recognition
- 2010
- State of Texas Renewable Energy Industries Association Honoree
and Award Recipient for Meritorious Achievement in Renewable
Energy
- 2016 - State of Texas - Contracted Subject Matter Expert on Solar Energy
- 2016 - Memnosyne Institute Sustainable Leadership Award
- 2017
& ongoing - United States Department of Energy National BCAP
Project
(One of only two engineers selected nationwide for the program.)