Learn
Solar in plain English. Know what every part does and what it costs before anyone tries to sell you one.
Start here.
New to solar? Read these three in order and the rest of the site makes sense.
Solar 101: the ten-minute version
The whole picture, plain and quick. What the parts are, where the power goes, and enough to judge any quote you are handed.
Read it→How big a system do you need?
The first real question. Read your power bill, do the simple math, and land on a panel count you can trust.
Read it→Grid-tied, hybrid, or off-grid?
Three ways to set up a system. Which one fits your home and your goals, and how to tell in three questions.
Read it→Rather take it as a course?
The Academy puts 41 of these guides in the order that builds, across 4 tracks, and keeps your place as you read.
All guides.
Dig into the part you need. More added as we write them.
Who is allowed to install solar: licenses, EPCs, and the owner-builder exemption
Every solar project splits into work anyone may do and work only a state-licensed contractor may do, and the line is drawn by law, never by skill.
6 min readWhat a 25-year panel warranty actually covers
The famous 25-year warranty is two separate promises, and the output curve is printed on the datasheet, so you can compute the guaranteed floor for any year of a panel's life.
6 min readVolts, amps, watts, and ohms: the four numbers behind every spec sheet
Voltage is the push, amps are the flow, watts are the work, and ohms are the fight, and every spec sheet in solar is some mix of those four.
4 min readHow we test used solar gear, and how you can too
The less there is inside a device, and the easier it is to test, the better it survives a second owner. That one rule sorts the whole used market.
6 min readSun hours: why panels rarely make the number on the label
A panel's rating is a lab number measured at one exact sky, so real output is that rating scaled by the sun that actually showed up and the heat the cells ran at.
5 min readRacking: the chain that holds your array to the roof
Roof structure, attachment, rail, clamp, module. Five links, every one an engineered part, and the wind only needs one of them wrong.
4 min readPanel types: mono, N-type, bifacial, and what is just marketing
Every panel type name on the box comes down to four spec-sheet lines. Learn to read them and the marketing stops working on you.
5 min readSeries vs parallel: what adds, what stays put, and why the inverter cares
Series adds voltage, parallel adds current, and every string layout on a solar drawing is a choice about where to sit on that tradeoff.
5 min readPower vs energy: the one bill number that sizes a solar system
Kilowatts are the speedometer and kilowatt-hours are the odometer, and the utility only ever bills you for the odometer.
5 min readMPPT vs PWM charge controllers, and when you need neither
The charge controller referees the argument between your panels and your battery. In most modern systems it is already built into the inverter.
4 min readString, micro, hybrid, off-grid: the four inverter families
Every inverter belongs to one of four families, and two questions sort them: where does the conversion happen, and what is the machine's relationship with the grid?
5 min readInside a hybrid inverter: MPPTs, charge paths, and pass-through
A hybrid inverter is three machines in one box. Know which machine each spec-sheet number belongs to and the whole datasheet starts making sense.
5 min readHow to read a solar panel datasheet
Every panel from every manufacturer is described in the same handful of numbers, and one worked example teaches you to read them all.
6 min readThe GridBOSS, port by port
A house with solar and batteries is a small grid, and the GridBOSS manages its handshake with the big one. A tour of every port on the box.
5 min readBattery runtime math that survives a real house
Runtime is one division, kilowatt-hours over kilowatts, plus three honest corrections most sales pitches skip.
4 min readCells, BMS, and cycle ratings: how to read a battery spec sheet
A home battery is two products in one case: cells that store the energy, and a BMS that spends its whole life protecting them. Reading the spec sheet means reading both.
6 min readBalance of system: everything that is not a panel, inverter, or battery
Wire, breakers, disconnects, combiners, attachments. Cheap parts, expensive consequences, and each one has a single job worth knowing.
4 min readAdding a generator to a battery system: transfer, charging, sizing
Once a battery is in the system, the generator stops carrying the house and starts refilling the tank. That one shift changes how you wire it and how big it needs to be.
6 min readWhich EG4 inverter should I choose?
Four questions sort the whole EG4 lineup: grid or no grid, load size, solar plans, and how much of the house you want backed up.
7 min readWhat solar can and can't power in an outage
Grid-tied panels without a battery shut off when the grid goes down. Why that happens, what a battery changes, and what backup can realistically run.
7 min readWhat solar actually costs in 2026, from real quotes
Equipment and install prices from systems we quoted in June and July 2026, with the expired federal credit out of the math where it belongs.
7 min readWhat GridBOSS does, and when you actually need it
The GridBOSS is the box at your meter that decides whether the house runs on the grid or on your batteries. What it does, and who actually needs one.
7 min readWhat comes in an Ape Solar kit
Every Ape Solar kit is built from the same five part groups, and this walk through the box explains what each one is for and which kits add batteries.
8 min readWatts, kilowatts, and kilowatt-hours: what each one measures
A watt measures how fast electricity moves. A kilowatt-hour measures how much you used. Mixing them up is how people buy the wrong battery.
7 min readReading your electric bill for solar: the one number that matters
Solar sizing starts from one number on your electric bill, the kWh you used this month, and most people have never once looked at it.
6 min readNew vs used solar gear: what's safe to buy used
Used panels can be a real bargain and a used battery can be a mystery box. The honest hierarchy, category by category, and how to spot a bad deal.
7 min readLiFePO4 batteries, explained
The calmer lithium chemistry that home batteries settled on: what it is, why it lasts thousands of cycles, and how it stacks up against lead-acid.
7 min readHow long will a battery run my house?
A fridge runs for about a week on one home battery and central AC drains the same battery in an afternoon, and the difference is one division you can do on a napkin.
7 min readGenerator plus battery: when you want both
A generator and a battery bank do different jobs in an outage, and the houses that ride out a long one most comfortably usually run both.
8 min readThe EG4 inverter lineup, explained
What each EG4 unit actually does, the verified numbers side by side, and which Ape Solar kit each one anchors.
9 min readEG4 FlexBOSS vs 18kPV: the hybrid choice
The FlexBOSS21, the FlexBOSS18, and the 18kPV are all grid-capable EG4 hybrids. Here is where each one fits, on verified numbers.
7 min readEG4 6000XP vs 12000XP: which one fits your build
The 6000XP runs a shed, a cabin, or a critical-loads panel, the 12000XP runs a whole house off the grid, and the honest line between them is what you run at once.
7 min readDIY solar vs pro install: where the line actually is
Most of a solar build is work a handy homeowner can do, the rest belongs to a licensed electrician, and here is where that line sits before you spend a dollar.
8 min readDelivery day: what to check before you sign
A solar order arrives as freight on a pallet, and the receipt you sign is your record of how it showed up. Here is what to look at before the driver leaves.
6 min readCritical loads vs whole-home backup: how much do you need?
One approach keeps a short list of circuits alive through an outage, the other carries the whole house. The right pick comes down to battery size and cost.
7 min readThe best backup setup for hurricane season
A few hours, a few days, and a week without power ask for three different systems. Here is how to pick your hurricane backup tier, and the kit that packages each one.
8 min readCan I add batteries to my existing solar?
Usually yes, and without touching a single panel: here are the two shapes a battery retrofit takes, and what decides which one fits your system.
7 min readWhat net metering actually does to your bill
When your panels make more power than your house uses, your meter can run backward. Here is the math behind that, and what it does to a Florida bill.
4 min readReading is good. Building is better.
The builder walks you through every choice as you make it. The best Solar 101 there is.
Build a System →