Guides
Plain-English help for the problems you actually run into.
kW vs kWh: The Difference
Power vs energy, explained simply, and why it matters for solar.
How Solar Panels Are Installed
The full process, cost, and timeline, and whether to DIY it.
How Many Solar Panels to Power a House
The simple math from your power bill, and what changes the count.
Do Solar Panels Work in Winter?
Winter, clouds, night, and snow, and how net metering fills the gaps.
How Do Solar Panels Work?
From the photovoltaic effect to inverters, batteries, and real output.
How Does a Solar Inverter Work?
DC to AC conversion, inverter types, sizing, lifespan, and cost.
How Does Net Metering Work?
How export credits hit your bill, and the shift to net billing.
How Long Do Solar Panels Last?
Lifespan, what degrades, what fails first, and how to extend it.
How Much Does Solar Cost?
Per-watt pricing, whole-home totals, and buy vs lease in 2026.
How to Clean Solar Panels
When dirt costs power, the safe method, and when to hire a pro.
What Can a 100Ah Battery Run?
Real runtime numbers with watt-hour math for appliances and RVs.
Do Solar Panels Increase Home Value?
Owned panels usually help; leases and PPAs can complicate a sale.
Can Solar Power an Air Conditioner?
Real AC wattage for window, mini-split, and central units, and how to size the panels.
Solar Panels for RVs and Campers
How many watts a camper really needs, the four parts of a setup, and kit vs solar generator.
100 Watt Solar Panels Explained
Real daily output, what one runs, whether it charges a 100Ah battery, amps, cost, voltage, size, and whether one is enough.
200 Watt Solar Panels Explained
Real daily output, what one runs, whether it powers a fridge, battery charge time, cost, and voltage.
400 Watt Solar Panels Explained
Real daily output, size, cost, what one can run, and how many power a house.
500 Watt Solar Panels Explained
Real daily output, size, cost, what one runs, battery charge time, and how many power a house.
How Much Energy Does a Solar Panel Produce?
A 400 watt panel makes about 1.2 to 2 kWh a day and 450 to 700 kWh a year. The math, why it never hits its rated wattage, panel size vs efficiency, and whole-system output.
Solar Pool Heaters: How They Work and Cost
How they warm your pool for almost nothing to run, install cost, sizing, and whether it is worth it.
Monocrystalline Solar Panels Explained
What they are, real efficiency and cost, the honest drawbacks, and whether they are worth it.
What Is a Solar Charge Controller?
What it does, whether you need one, MPPT vs PWM, and how to size it to your panels and battery.
Off-Grid Solar Power Systems
The parts, how to size one, real cost in 2026, and the honest drawbacks of cutting the cord.
Solar Water Heaters: How They Work and Cost
How roof collectors make hot water, the active and passive types, install cost, sizing, and whether it is worth it in 2026.
How Many Watts Does a Refrigerator Use?
Real running watts, startup surge, and daily kWh for a fridge, and what size inverter, battery, or solar it takes to run one.
How Many Watts Does a TV Use?
Real wattage by screen size, daily kWh and cost, standby draw, and what size inverter or solar it takes to run a TV.
How Many Watts Does a Microwave Use?
Cooking watts vs the real draw at the outlet, running cost, circuit needs, and what inverter or solar it takes.
Solar Panel Efficiency Explained
Most 2026 residential panels run 20 to 22 percent efficient, the best reach about 25 percent, and no single-junction panel beats roughly 33 percent. What the number means, why the rest is lost, and whether it matters when buying.
Solar Panel Maintenance: What It Needs and What It Costs
Panels need little upkeep: monitor production, rinse off grime, replace the inverter once. The real tasks, schedule, and yearly cost.
Solar Panel Repair: What Breaks and What It Costs
Most solar problems are a bad inverter, loose wiring, or one cracked panel, not the whole array. What breaks, how to spot damage, repair cost, and repair vs replace.
Can You Use Solar Panels Without a Battery?
Yes, and most US home solar does. How grid-tied solar uses the grid as storage, whether it is worth it, and when a battery earns its cost.
Flexible Solar Panels: Are They Worth It?
Same cells as rigid panels but they cost more per watt and often last only 2 to 5 years. The real drawbacks, lifespan, and when they make sense.
Plug-In Solar Panels: Do They Work and Are They Legal?
Balcony solar plugs into a wall outlet for a modest bill cut. How it works, real cost and savings, and the fast-changing US legal picture in 2026.
Solar Power for a Shed
For a shed with no power line, a small solar kit is the cheapest way to get lights and outlets. What it can run, how many panels, the parts, and real cost.
Solar Carports: Cost and Are They Worth It?
A freestanding canopy that shades your parking and generates power. Cost, how it works, carport vs roof and ground mount, drawbacks, and when it pays off.
Solar Panel Dimensions: How Big and Heavy Is a Solar Panel?
A standard home panel is about 74 by 41 inches and 40 to 50 pounds. Real dimensions and weight by wattage, thickness, roof load, and space needed.
Are Used Solar Panels Worth It?
Used panels run about $0.10 to $0.50 per watt and suit a shed, cabin, RV, or DIY off-grid build. Why they rarely pay off on a roof, what to inspect, and the 33% rule.
Pros and Cons of Solar Panels: Is Home Solar Worth It in 2026?
The honest tradeoffs: a lower bill and added home value against a $18,000 to $30,000 upfront cost and the expired federal tax credit. Who should skip solar.
Can You Charge an EV With Solar Panels?
Average driving needs about 10 to 12 kWh a day, or roughly 6 to 10 panels. How grid-tied solar offsets EV charging, real cost, and whether you need a battery.
Solar Power for Camping: What You Need and How to Set It Up
Most tent campers need a 300Wh to 1,000Wh power station and one 100W foldable panel to run lights, charge phones, and keep a 12V fridge cold. Sizing, what it runs, and power station vs power bank vs gas generator.
mAh to kWh: How to Convert Battery Capacity
The formula is Wh = mAh times volts, divided by 1,000, then divide again for kWh. Why you need the voltage, worked examples for power banks, and why a 20,000 mAh bank holds only 74 Wh.
Watts to kWh: How to Convert Watts to Kilowatt-Hours
You cannot go straight from watts to kWh; you need the hours. The formula is kWh = watts times hours, divided by 1,000, with worked examples for appliances and solar.
Watts to Kilowatts: How to Convert Watts to kW
The conversion is one step: divide by 1,000. How many watts are in a kilowatt, a quick conversion table, kW back to watts, and why watts to kW is not the same as watts to kWh.
What Is a Solar Microinverter?
One small inverter per panel converts DC to AC at the module, so shade or a weak panel cannot drag down the array. How they work, real cost, lifespan, and whether you need them.
Solar Batteries Explained: Cost, Sizing, and Whether You Need One
How home solar batteries are rated in kWh, what they cost, how long they last, how big a battery you need for backup, and whether one is worth it in 2026.
Solar Panels for a Tiny House
A tiny house uses about 2 to 6 kWh a day, so a modest off-grid solar setup runs it. How many panels it needs, what it runs, the parts, real cost, and off-grid vs grid-tied.
How Many kWh Does It Take to Charge a Tesla?
A full charge pulls about 60 to 90 kWh for a Model 3 or Y, and 105 to 110 kWh for a Model S or X. Real kWh per 100 miles, per mile, home charging cost, and the panels to cover it.
What Is a Hybrid Solar Inverter?
A hybrid inverter runs your panels and charges a battery in one box, so it can keep power on in an outage. How it works, cost, disadvantages, and whether you need one.
What Is a Solar Farm? Cost and Income Per Acre
A large ground-mounted array that sells power to the grid. Cost to build (about $1M per MW), land needed, what leasing pays per acre, downsides, and community solar for homeowners.
How Many Watts Does It Take to Run a House?
Essentials need about 3,000 to 5,000 watts at once; a whole house with central AC can peak at 10 to 20 kW, while the daily total averages near 30 kWh. Generator and solar sizing from real appliance watts.
How Many Watts Does a Light Bulb Use?
A standard LED bulb uses about 8 to 10 watts, versus the 60-watt incandescent it replaces. Real wattage by bulb type and brightness, running cost, and how many bulbs a battery or solar panel can run.
Tesla Solar Panels: Cost and Are They Worth It?
Tesla sells some of the cheapest installed solar, about $2.30 to $3.10 per watt. Real cost, panel specs, the Powerwall question, the expired tax credit, and whether it is worth it.
Tesla Powerwall: Cost and Is It Worth It? (2026)
The Powerwall 3 is a 13.5 kWh home battery that delivers 11.5 kW with a built-in solar inverter. Real 2026 cost, full specs, Powerwall 3 vs 2, how many you need, the expired tax credit, and whether it is worth it.
Bifacial Solar Panels: How They Work and Are They Worth It?
Bifacial panels catch light on both sides and add about 5 to 15 percent more power, but only over a reflective surface. Why they shine on ground mounts and fall flat on a flush roof.
Sunrun Solar Reviews (2026): Cost, Lease vs Buy, and Is It Worth It?
Sunrun is the largest US home solar company and sells mostly $0-down leases and PPAs. How the model works, real cost framing, the 2026 tax-credit catch, the honest downsides, and whether it is worth it.
Is There a Federal Solar Tax Credit in 2026?
No, not for an owned system: the 30% residential credit (Section 25D) expired for systems placed in service after December 31, 2025. What ended, what leases/PPAs and states still offer, and whether solar still pays.
Do Solar Panels Work at Night?
No, panels make zero power at night. What actually runs your house after dark: net metering, a home battery, and why moonlight and 'night solar panels' do not count.
Palmetto Solar Reviews (2026)
Palmetto is a national solar company that designs and manages installs through local partners and sells its LightReach lease and PPA. How the model works, real cost framing, the 2026 tax-credit catch, the honest downsides, and whether it is worth it.
Trinity Solar Reviews (2026)
Trinity is the largest privately held US residential solar installer and uses its own in-house crews instead of subcontractors, across nine states. How the model works, real cost framing, the 2026 tax-credit catch, the honest downsides, and whether it is worth it.
Ambia Solar Reviews (2026)
Ambia is a fast-growing door-to-door solar and home-services company out of Utah that sells owned systems on long loans. How the model works, the dealer-fee catch, real cost framing, a 2025 Minnesota regulator settlement, the 2026 tax-credit change, and whether it is worth it.
Do Solar Panels Affect Home Insurance?
Owned rooftop solar is usually covered by your existing homeowners policy, but you should raise your dwelling limit and tell your insurer. What is covered, the premium change, separate wind and hail deductibles, and how leased panels differ.
Solar Panel Disposal: Recycle, Resell, or Get Rid of Old Panels
Old panels can be recycled, resold if they still work, or landfilled where state rules allow. Recyclers recover more than 85% of a panel, but under 10% are recycled today. The routes, cost, whether they are hazardous waste, and what happens after 25 years.
Freedom Forever Solar Reviews (2026)
Freedom Forever was the largest US residential solar installer, then filed Chapter 11 bankruptcy on April 15, 2026. What happened, what it means for your workmanship warranty and 25-year production guarantee, what lease and PPA customers should do, and whether to sign anything with its name on it now.
Momentum Solar Reviews (2026)
Momentum Solar is a full-service residential installer in about seven states that designs and installs in-house. How the model works, real cost framing, the up-to-$30 million telemarketing (TCPA) settlement finalized in 2025, the honest downsides, the 2026 tax-credit catch, and whether it is worth it.
What Are Peak Sun Hours?
A peak sun hour is one hour of sunlight at 1,000 watts per square meter, and most of the US gets 3 to 6 a day. What they mean, how they differ from daylight hours, how to find yours, and how they set your daily solar output.
Is Solar a Scam?
No, solar itself is not a scam, but the sales side has real ones. The common solar scams in 2026, the red flags, the expired-tax-credit lie, and how to avoid getting burned.
What Are Solar Panels Made Of?
Solar panels are mostly silicon cells sealed under tempered glass in an aluminum frame. The full materials list, what a solar cell is made of, the raw materials, cell types, the weight breakdown, and whether any of it is toxic.
What Is a Power Optimizer for Solar Panels?
A power optimizer is a small box under each panel that tracks its best output and sends conditioned DC to one central string inverter, so shade on one panel cannot drag down the rest. How they work, cost, lifespan, SolarEdge vs Tigo, and whether they are worth it.
Solar Panel Financing: How to Pay for Solar in 2026
The five ways to pay for solar (cash, solar loan, home equity, lease, and PACE), what each really costs, the hidden dealer fee on low-APR solar loans, how hard it is to qualify, and how the 2026 tax-credit change moved the math.
Do Solar Panels Damage Your Roof?
No, a good install on a sound roof does not damage it and can help the covered shingles last longer. How panels are attached, why leaks happen and how rare they are, the roof-warranty question, and whether to reroof before you go solar.
Tesla Solar Roof: Cost and Is It Worth It in 2026?
A Tesla Solar Roof runs about $50,000 to over $100,000 installed, roughly $14.50 to $19 per square foot. How the glass solar tiles work, the required Powerwall, the long payback, the expired tax credit, and whether it is worth it.
Home Solar Power Systems: The Parts, How They Work, and 2026 Cost
A home solar power system is roof or ground panels plus an inverter that turns sunlight into household electricity, tied to your grid. The five parts, how the power flows, how big a system a house needs (about 6 to 11 kW), and what it costs in 2026.
How Many kWh Does a House Use Per Day?
The average US home uses about 29 to 30 kWh a day, roughly 900 kWh a month and 10,500 kWh a year. What is normal, how it changes by home size, state, and season, what draws the most, and the panels it takes to cover it.
Is Solar Energy Renewable?
Yes. Sunlight is replenished on any human timescale and is effectively unlimited, which is what classifies solar as renewable. Why it counts as renewable, renewable vs clean vs sustainable, the material footprint, and where solar fits among renewable sources.