Free planner RV solar, manuals, and gear
Size solar for the rig you actually own. Open the official Fleetwood manual in two taps. Then buy the gear the math points to.
No account, no email wall. Same formulas as the original Megawatt calculators.
Worked example
Compact rig, one 400 W pack, summer sun
Start here
Pick the job. Every path ends in a number, a manual, or a part.
Tell the planner your rig, your roof, and what you run. It hands back a panel layout, a daily watt-hour budget, battery and inverter sizes, and the wire gauge.
Three build tiers, each with a parts list.
Plan my solarFleetwood models first, then the fridge, generator, and slide makers. Every link goes to the source.
Batteries, solar packs, and road gear, matched to what the calculators recommend. Plus Megawatt Merch.
Shop gearShort, sourced, and specific to RVs. No invented scorecards.
The solar planner
Most solar advice skips the part where your coach is different. The planner starts there.
Solar for a full day
484W
Your roof makes
1,200Wh/day
Same formula as the Megawatt solar calculator: panel watts × sun hours × 0.75 for real-world losses.
Calculators
The tools from the original Megawatt site, plus runtime, payload, and payback. Same inputs, cleaner answers.
Boondocking
Out here, every amp comes from the roof or the bank. The boondocking guide covers the dry-camp habits from Fleetwood's own manual and the numbers for the night after a cloudy day.
Fleetwood manual hub
Pick your coach. Links go to Fleetwood, REV, or the company that built the part. Nothing is rehosted, so nothing goes stale.
Component makers
Fridge acting up? Generator won't start? Go straight to the maker's support page.
Gear
Every product here is one the Megawatt calculators already link, so the part matches the number.
12V · 300Ah · 3,840 Wh
The middle of the Megawatt battery table. Enough bank for a compact rig to sit through a cloudy day.
Check the current price on Amazon.
400 W
Makes about 1,650 Wh on a 5.5-hour summer day, enough for LED lights and a 12V fridge.
Check the current price on Amazon. Confirm the listing wattage before you buy.
Tire pressure + temp
Pressure and temperature for every tire, on a screen by the wheel. Linked from the fuel savings calculator.
Check the current price on Amazon.
Weather alerts
Weather warnings when the campground has no signal. Linked from the max wind calculator.
Check the current price on Amazon.
On video
Dr. Megawatt's own videos and films from the shops he works with. Each one opens on YouTube, so this page stays fast.
Partners
Contacts carried over from the current site. No star ratings, because we don't make those up.
RV solar installs, including 48V lithium builds like the one in the films above. Ask for Derek Green.
LED lighting for coaches, including Fleetwood turn signal integration. Megawatt discount page on their site.
RV inspections before you buy. Ask for Rick West.
Megawatt Merch
Shirts, hoodies, and a doormat for people who name their generator. Prices are what megawattmerch.com listed on October 1, 2026, so check the product page.
Ready when you are
Pick your rig, check your loads, and get three builds with parts lists. Then match with an installer, or do it yourself.
Answers come only from this site's manuals, guides, checklists, and calculators. If it isn't written here, it'll say so.
