Maryland - Requirements for Solar Power Installation

Maryland State licensing requirements for solar power installers and solar power installations

The rules that regulate the installation of solar power systems are different in each state and even sometimes from county to county. It is important that you are aware of these rules as a potential customer because often it is a condition of receiving rebates and incentives that your system meets these requirements. We have created pages which will help you make sure your solar panelinstaller is properly licensed and assist you to ask your installer the right questions about the system they are proposing to install for you, generally the following needs to be considered;

  • Licensing requirements for Solar Installers in each state
  • Equipment Standards or Certification
  • Interconnection Standards and other requirements

We have done our best to get as much info as we can, as always the people who know the current state of play in your area are your local solar power professionals.

Licensing requirements for Solar Installers in Maryland

Maryland has specific licensing requirements for those wishing to install solar power systems, solar power is considered electrical work and so normal state based licensing would require that the installer be a licensed electrical contractor in Maryland. The contractor needs to work in accordance with the following rules; Solar power systems need to comply with various standards including, UL (Underwriters Laboratories) 1741 and UL 1703. Systems must be installed in compliance with applicable requirements of local electric codes and the National Electric Code (NEC). Utility interconnected (grid-tied) systems must be installed in compliance with IEEE Standard 929-2000, "Recommended Practice for Utility Interface of Photovoltaic Systems.

Interconnection Regulations (small generator)

Maryland has a four-tiered approach to interconnection regulations. Different levels of review are subject to specific technical screens, review procedures, and time lines. Basically the review process becomes more complex as the system size gets over 10kW. Solar systems under 10kW need to be in accordance with IEEE 1547, UL 1741 and the National Electric Code (NEC) Those looking to install solar power should always check for requirements from their electricity Utility.


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