ElectricsNorms
How many panels per string — frost, MPPT and input current
Why a string that works in summer can damage the inverter in January. Four checks to pass for every MPPT input.
Read the articleThe Solispec journal
Blog
Practical articles for solar installers: structures, electrics, proposals. Norms named, calculations checked.
Try it on your own site
Structure, electrics and the proposal — in one project
Open the designer without signing up: Solispec checks the truss to the norms, lays out the strings and prepares the client proposal.