In the interest of being “greener”, this past week we have had solar panels installed on our roof, and a large battery unit downstairs together with an inverter. I had been concerned that there was a risk of RFI, particularly on 2 metres, my favourite band for weaker signal work, but it appears there is none so far. I have scoured the Web for a general consensus on possible problems, and I summarise what I have found, which gives me relative peace of mind.
Solar panels themselves do not typically cause significant noise interference for radio amateurs. However, some of the associated electronic equipment, such as inverters used to convert the DC power generated by solar panels into AC power for household use, can generate radio frequency interference (RFI). This interference can potentially affect radio communications and cause difficulties for radio amateurs.
The level of interference depends on various factors, including the quality of the solar equipment, the design of the installation, and the proximity of the radio equipment to the solar installation. In general, well-designed and properly installed solar systems should comply with electromagnetic interference (EMI) regulations and have adequate measures in place to mitigate RFI.
If you’re experiencing interference from a solar installation, it is recommended to contact the owner or installer of the solar panels to address the issue. They may be able to make adjustments to the system or add filters to reduce the interference. Additionally, radio amateurs can employ their own mitigation techniques, such as installing additional filters or shielding on their radio equipment, to minimize the impact of RFI.
Our inverter is in our house and directly below the mast with my yagis for 2 metres, 70 cms and 23 cms, and within no more than six metres from the 4 metre vertical.
No problems detected at G4MCU but should there be any I will keep you posted. So far, so good.
Amateur Radio News from Jon Stow, G4MCU 