Independent, fact-checked solar education for US homeowners.https://helioroofer.com/https://helioroofer.com/articles/can-you-install-solar-yourself-diy/https://helioroofer.com/articles/can-you-install-solar-yourself-diy/DIY solar is possible and can save money - but it's genuinely hard. Here's what's involved, the real risks, and why you can always call a pro to pick up where you got stuck.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/do-you-need-a-license-to-install-solar/https://helioroofer.com/articles/do-you-need-a-license-to-install-solar/Pros almost always need an electrical or solar contractor license. Homeowners can often DIY on their own home with a permit - but rules vary. Here's how it works.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/how-long-does-solar-installation-take/https://helioroofer.com/articles/how-long-does-solar-installation-take/The panels go up in 1-3 days, but the full process usually takes 1-3 months. Here's a realistic timeline for each step and what causes the delays.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/how-many-solar-panels-do-i-need/https://helioroofer.com/articles/how-many-solar-panels-do-i-need/Size a system from your electricity use, then check it fits your roof. Includes worked examples for small, average, and large homes - in panels, kW, and square feet.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/how-much-does-solar-installation-cost/https://helioroofer.com/articles/how-much-does-solar-installation-cost/Solar installation runs about $2.50-$3.50 per watt - roughly $15,000-$25,000 for a typical home - and labor, permits, and overhead are a big share. Here's the breakdown.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/how-much-weight-can-your-roof-hold/https://helioroofer.com/articles/how-much-weight-can-your-roof-hold/Solar panels add about 3 lbs per square foot. Most code-built roofs handle that without reinforcement - but here's how roof load works and when an engineer is needed.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/how-solar-panels-mount-to-your-roof/https://helioroofer.com/articles/how-solar-panels-mount-to-your-roof/Solar panels attach via roof penetrations, flashing, rails, and clamps. Here's how a proper mount works, how installers prevent leaks, and what to check.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/how-to-choose-a-solar-installer/https://helioroofer.com/articles/how-to-choose-a-solar-installer/The installer matters as much as the panels. Here's how to vet one - licensing, experience, warranties, and finances - plus the red flags that signal trouble.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/interconnection-and-pto-explained/https://helioroofer.com/articles/interconnection-and-pto-explained/Even after install and inspection, your solar can't legally run until the utility grants Permission to Operate (PTO). Here's what interconnection and PTO mean.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/solar-electrical-basics/https://helioroofer.com/articles/solar-electrical-basics/The electrical side of a solar install - inverters, your main panel, wiring, and code-required safety like rapid shutdown - explained in plain English.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/solar-installation-process-step-by-step/https://helioroofer.com/articles/solar-installation-process-step-by-step/From signing to switch-on, here's exactly what happens during a home solar installation - site survey, design, permits, install day, inspection, and PTO.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/solar-on-different-roof-types/https://helioroofer.com/articles/solar-on-different-roof-types/Asphalt, metal, tile, flat, wood, slate - most roofs can take solar, but the method and cost differ. Here's how each roof type affects a solar installation.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/solar-permits-and-inspections-explained/https://helioroofer.com/articles/solar-permits-and-inspections-explained/Solar installs need building and electrical permits, then a code inspection before they can switch on. Here's what's involved, who handles it, and typical timelines.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/solar-wiring-what-cables-to-use/https://helioroofer.com/articles/solar-wiring-what-cables-to-use/A plain-English overview of solar wiring - PV wire, MC4 connectors, THWN-2 home runs, grounding, and gauges - plus why wire sizing is licensed electrical work.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/tools-needed-to-install-solar/https://helioroofer.com/articles/tools-needed-to-install-solar/A rundown of the tools a solar installation actually requires - safety gear, roof tools, mounting tools, and electrical tools - and which ones are non-negotiable.Sun, 28 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/do-i-need-a-main-panel-upgrade-for-solar/https://helioroofer.com/articles/do-i-need-a-main-panel-upgrade-for-solar/Some homes need an electrical panel upgrade before solar, many don't. Here's how the 120% rule decides, what an upgrade costs, and the cheaper alternatives.Tue, 23 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/states-automating-rooftop-solar-permits-2026/https://helioroofer.com/articles/states-automating-rooftop-solar-permits-2026/Virginia's new statewide instant-permit law is the latest sign that automated solar permitting is going mainstream in 2026. What it means for your install.Tue, 23 Jun 2026 00:00:00 GMThttps://helioroofer.com/articles/why-pto-interconnection-slow-2026/https://helioroofer.com/articles/why-pto-interconnection-slow-2026/Your panels can sit finished for weeks waiting on utility Permission to Operate. Here's why interconnection queues are slow in 2026 and how to avoid extra delay.Sat, 09 May 2026 00:00:00 GMThttps://helioroofer.com/articles/what-happens-if-installer-goes-bankrupt/https://helioroofer.com/articles/what-happens-if-installer-goes-bankrupt/After SunPower and Freedom Forever failed, this is a real worry. Your panels keep working and manufacturer warranties hold - but the installer's workmanship warranty can vanish.Wed, 22 Apr 2026 00:00:00 GMThttps://helioroofer.com/articles/instant-solar-permitting-solarapp-2026/https://helioroofer.com/articles/instant-solar-permitting-solarapp-2026/More jurisdictions now use SolarAPP+ to approve residential solar permits automatically - sometimes same-day. Here's what it is and how it speeds up your install.Wed, 18 Mar 2026 00:00:00 GMThttps://helioroofer.com/articles/federal-tax-credit-ended-installing-solar-2026/https://helioroofer.com/articles/federal-tax-credit-ended-installing-solar-2026/The 30% federal credit for buying solar expired Dec 31, 2025. Here's how that changes the math for installing in 2026 - and why leases and PPAs still carry a federal benefit.Thu, 12 Feb 2026 00:00:00 GMThttps://helioroofer.com/articles/2026-solar-code-rapid-shutdown-nec/https://helioroofer.com/articles/2026-solar-code-rapid-shutdown-nec/Newer NEC editions require module-level rapid shutdown and other safety measures. Here's what the current code expects from a solar install and why inspectors check it.Thu, 29 Jan 2026 00:00:00 GMT