Solar panels use photovoltaic (PV) cells to convert sunlight into DC electricity. An inverter then converts this DC power into AC electricity that your home appliances can use. When your panels produce more energy than you need, the excess can be stored in batteries or sent back to the grid for credits.

There are three main types: Grid-Tied (connected to utility grid, no batteries), Hybrid (grid-connected with battery backup), and Off-Grid (completely independent with battery storage). Grid-tied is most common for homes, while off-grid is ideal for remote locations.

Yes, solar panels generate electricity even on cloudy days, though at reduced efficiency (typically 10-25% of normal output). They work based on UV light, not just direct sunlight. However, they do not produce energy at night, which is why battery storage or grid connection is important.

Most solar panels last 25-30 years with minimal degradation. Premium panels can maintain 85-90% of their original efficiency after 25 years. Inverters typically need replacement every 10-15 years, and batteries last 5-15 years depending on type and usage.

Physical installation typically takes 1-3 days for residential systems. However, the full process from signing a contract to system activation usually takes 2-6 months, depending on permitting, utility approvals, and installer scheduling.

Yes, permits are required in most areas. You'll need a building permit from your local city/county and an interconnection permit from your utility company. Professional installers typically handle the permitting process for you.

Ideal roofs are south-facing (in Northern Hemisphere), shade-free between 9am-3pm, structurally sound, and have at least 265 sq ft of space. East/west-facing roofs can work too with slightly reduced efficiency. A professional site assessment will determine your roof's suitability.

While DIY installation is possible, it's generally not recommended. Professional installers ensure safety, optimal system design, proper permitting, and warranty coverage. Many jurisdictions require licensed electricians for grid connections. SOLYNK helps you find certified installers in your area.

The average 7.2 kW residential system costs $15,000-$30,000 before incentives. After the 30% federal tax credit, costs drop to $10,500-$21,000. Actual costs vary by location, system size, roof complexity, and equipment quality. Use SOLYNK's calculator for precise estimates.

The average homeowner saves $125/month on electricity bills. Over 25 years, total savings can reach $60,000 or more depending on your local utility rates, system size, and energy consumption. High electricity bills mean higher solar savings.

The federal Investment Tax Credit (ITC) provides 30% of system costs. Many states offer additional rebates, net metering policies, and performance-based incentives. Some utilities provide special rates or discounts. Check Database of State Incentives for Renewables & Efficiency (DSIRE) for local programs.

Net metering is a billing arrangement where excess solar energy sent to the grid earns credits on your utility bill. These credits offset the cost of electricity you draw from the grid when your panels aren't producing enough. Policies vary by state and utility.

A complete system includes: Solar panels (generate DC electricity), Inverter (converts DC to AC), Racking/mounting (holds panels in place), Monitoring system (tracks performance), and optionally Batteries (store excess energy) and Charge controllers (regulate battery charging).

LiFePO4 (Lithium Iron Phosphate) is the best choice for most homes — 90% depth of discharge, 10-15 year lifespan, minimal maintenance. Lead Acid is cheaper but only 50% usable capacity and 3-5 year lifespan. AGM/Gel are middle-ground options with 60-70% DoD.

Your inverter should handle your peak load plus a 25% safety margin. For example, if your peak load is 4,000W, you need a 5,000W inverter. SOLYNK's calculator automatically sizes your inverter based on your appliance inputs and system configuration.

Monocrystalline panels are more efficient (20-22%), perform better in low light, and last longer — ideal for limited roof space. Polycrystalline panels are cheaper but less efficient (15-17%) and require more space. Most modern installations use monocrystalline.

Solar panels require minimal maintenance. Annual professional cleaning removes dust, pollen, and bird droppings that reduce efficiency. Rain naturally cleans panels in most climates. Avoid harsh chemicals — use soft brushes and deionized water. Monitor performance via your inverter's app to catch issues early.

Standard grid-tied systems shut down during outages for safety. Hybrid systems with battery backup can power essential circuits. Off-grid systems operate independently. If backup power is important, invest in a hybrid system with battery storage sized for your critical loads.

Yes, solar panels are designed to withstand hail, high winds (up to 140 mph), heavy snow loads, and extreme temperatures. They're tested to IEC 61215 standards. Most manufacturers offer 25-year warranties covering weather damage. Homeowner's insurance typically covers solar panels as part of your roof.

Call a professional if you notice: significant drop in energy production, inverter error messages, physical damage to panels, water leaks around mounts, or burning smells. Never attempt electrical repairs yourself. SOLYNK's marketplace connects you with certified technicians for maintenance and repairs.