Kilowatts (kW) and kilowatt-hours (kWh) are two different measurements that both appear throughout solar energy discussions, electricity bills, and inverter specifications. The difference is simple: kilowatts measure power (the rate of electricity flow at a given instant), while kilowatt-hours measure energy (the total amount of electricity consumed or produced over time). Confusing the two leads Read more »
Becoming a recognized solar energy expert involves combining formal education, hands-on experience, and industry certification — there’s no single path, but several proven routes. NABCEP certification, engineering education, and years of field experience together establish credible solar energy expertise. Paths to Solar Expertise Path Focus Area NABCEP certification track Installation, sales, technical sales expertise Engineering Read more »
Our blog is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Thank you for your support! When you get solar quotes, most installers will offer you three paths: buy the system outright, sign a solar lease, or sign a power purchase agreement (PPA). Buying means you own the Read more »
A hybrid solar system combines solar generation, battery storage, and grid connection into one integrated system — giving homeowners the flexibility of grid-tied solar with the resilience of battery backup. Hybrid systems use a single hybrid inverter to manage solar, battery, and grid power seamlessly, switching between modes automatically. What Makes a System “Hybrid” Unlike Read more »
Solar panel manufacturing transforms raw silicon into precisely engineered cells through a multi-step industrial process spanning global supply chains. Panels are made by purifying silicon, forming wafers into cells, and assembling those cells into a protected, wired module. Solar Panel Manufacturing Steps Step What Happens 1. Silicon purification Raw silicon refined to ultra-high purity 2. Read more »
Solar architecture refers to the design of buildings that intentionally integrate solar energy strategies — either through building-integrated photovoltaics (BIPV), passive solar design principles, or both. At its core, solar architecture treats the building itself as a solar energy system, orienting windows, overhangs, thermal mass, and solar panels to maximize energy capture while maintaining architectural Read more »
Solar roads — embedding photovoltaic cells directly into road surfaces — have been tested in several pilot projects worldwide, but the technology has struggled to prove viable at scale. High costs, durability issues under vehicle loads, and lower efficiency than rooftop solar have limited solar roads to small pilot projects rather than highway-scale deployment. Solar Read more »
Becoming a solar technician offers a practical entry point into the growing solar industry, typically requiring less formal education than engineering roles while offering solid earning potential. NABCEP certification, apprenticeship programs, and hands-on training are the main paths to becoming a qualified solar technician. Paths to Becoming a Solar Technician Path Timeline Notes On-the-job training Read more »
Choosing between on-grid and off-grid solar comes down to whether you want grid backup or complete independence, with significant differences in cost, complexity, and reliability. On-grid systems are cheaper and simpler for most homeowners; off-grid makes sense only where grid access is impractical or unavailable. On-Grid vs. Off-Grid Comparison Factor On-Grid Off-Grid Cost Lower — Read more »
Standard Test Conditions (STC) is the laboratory testing standard used to measure and compare solar panel performance. Every wattage rating you see on a solar panel datasheet — “400W,” “430W,” “500W” — refers to power output measured under STC. Understanding STC helps you interpret what panel specifications actually mean in practice, and why real-world output Read more »
