CAN SOMEONE TELL ME IF THERE IS A LIFE EXPECTENCE OF ROOF MODULES ? I AM ASKING ABOUT 480V PANELS INSTALLED ABOUT 8 YEARS AGO. WHEN ARE THEY NOT COST EFFECTIVE TO KEEP IN SERVICE ? WHAT DETERMINES THE NEED TO HAVE THEM REPLACED ?
THANKS FOR YOUR REPONSE.
PS. I DO NOT KNOW MUCH AT ALL OF PV SYSTEMS .
THANKS FOR YOUR REPONSE.
PS. I DO NOT KNOW MUCH AT ALL OF PV SYSTEMS .