Prospanel
Prospanel
Solar panel installation guides, each starting from a real question. 10 published.
Getting startedHow do I know if my roof can handle solar panelsYour roof needs to be structurally sound, typically less than 20 years old, and have enough unshaded space facing south or west to make installation worthwhile.
Getting startedWhat size solar panel system do I actually need for my homeAdd up your annual electricity usage in kilowatt hours from your utility bill, then divide by your location's average yearly solar production factor, typically between 1,200 and 1,600 kilowatt hours per installed kilowatt.
ComparisonsShould I choose between grid tie, battery backup, or hybrid solar systemsGrid tie systems are cheapest and simplest for most people, battery backup costs significantly more but provides power during outages, and hybrid systems combine both benefits but require substantial upfront investment.
How to guidesCan I install solar panels myself or do I need a licensed electricianMounting and wiring solar panels requires licensed electrician work in most places, though some jurisdictions allow homeowners to handle basic tasks under permit, but local codes vary significantly.
Costs and pricingHow much does a residential solar panel system cost in 2026Residential solar systems cost between 2.50 and 4.00 dollars per watt after accounting for labor and hardware, making an 8 kilowatt system roughly 20,000 to 32,000 dollars before incentives.
How to guidesWhat paperwork and permits do I need before solar installation startsYou need a building permit from your local authority, an electrical permit, interconnection agreement from your utility, and homeowner association approval if applicable, though most installers handle this process for you.