Websites price the engine. The quote prices the project.
Concrete, gas, the transfer switch, the inspector, and the oil changes for years after that. This page is the invoice map. It will not invent a bid for your lot. Two written quotes on the same load list are the numbers. Everything below is the list of lines those quotes have to carry.
The short version
- Whole-house generator cost is three invoices: equipment, install, and ownership.
- This page maps the line items (unit, transfer switch, concrete, gas, permit, annual service) without invented dollar quotes.
- No generator hop.
- Class first on best-standby.
- Sequence on the buying guide.
- Hub is the map.
Nobody here profits from your engine. Jackery, BLUETTI, and Anker SOLIX make batteries, so there is no generator hop and no dealer coupon hiding in the table. Your market will bend every line below: union labor, rocky trenching, an old panel, a propane tank at the far fence. Treat this as a checklist, then get two written bids. Class first: air-cooled versus liquid-cooled. Sequence: buying guide. The silo map: whole-house hub.
Three invoices, one purchase
“What does it cost” hides three answers. The equipment is the engine, the enclosure, and often a matching transfer-switch kit. The install is concrete, electrical, gas, and the inspection dance. Ownership is oil, filters, a starting battery, exercise runs, and a service arrangement that outlives the warranty card. Shop the unit price alone and you are browsing a catalog, not planning a machine.
| Line item | What it is | Why it moves |
|---|---|---|
| Air-cooled unit (about 10–12 kW) | The engine and enclosure for the default suburban class | Brand, enclosure, Wi-Fi module, whether the transfer switch is bundled |
| Liquid-cooled unit (about 20–24 kW) | The longer-duty class for heat pumps and true whole-home | Kilowatts, sound package, longer-duty hardware |
| Install + transfer switch + concrete | Pad, electrical, the switch that actually moves the house | Trenching, panel age, load-shedding kit, your labor market |
| Gas line / tank work | Meter, pipe, or propane tank and regulators | Meter capacity, trench length, tank size and first fill |
| Permits / inspection | Town paperwork, re-inspections, HOA drawings | Your town, failed first visits, covenant packets |
| Annual service | Oil, filters, starting battery, a visit or a Saturday you will actually keep | DIY versus a dealer; more if the engine sat neglected |
Install routinely outweighs the unit. The hub already says that, and we will not fill in a dollar fence to make it feel more precise than two bids. Complicated gas, a long trench, a service upgrade, or a liquid-cooled “run everything” job climbs from a straightforward air-cooled automatic. A big house with the wrong pipe climbs further. If the install invoice ends the conversation at the kitchen table, that is fine. It does not mean you go unprotected. It means you are shopping a quieter category, and that door is at the bottom of this page.
Ownership is the line everyone forgets and the machine never does. Exercise runs burn a little fuel and a little neighborly patience. Oil and filters are pocket change next to a seized engine. The starting battery that dies quietly in year four is a Saturday without backup. An unmaintained install is not paid off. It is a surprise, scheduled for later.
Who this fits
- A finished basement floods without its sump, or the well is the only water.
- Medical needs, mobility, or real winter make a two-day outage a health problem.
- Your outages are measured in days, especially heating-season days.
- The house must keep itself while you are away. Automatic is the whole product then.
- You have priced hotels, lost groceries, and wet carpet honestly, and the machine still wins over a decade.
Who should skip
- You rent, or the permit and HOA answers are not in writing yet.
- The honest budget is station-sized. That is a cheaper discovery, and a good one.
- Nobody will maintain an engine, or you really wanted solar on the roof.
- The load list does not exist yet. Kilowatts without a list is browsing, not planning.
How we know: Category cost analysis from public ranges, not site-measured installs.
Price check: No featured SKU in products.json — VERIFY-AT-PUSH (not checked) — from merchant page / products.json; may change.
Limits: We did not run a hands-on lab on these units. Surge blanks stay blank where the maker never prints one clean figure. EcoFlow stays comparison-only (no hop). Disclosure mode is dormant — we do not claim commissions.
This check is for the house that must behave like a house when the utility does not. If a 240-volt well is the one non-negotiable, price the split-phase battery path beside the pad before you sign anything. Different physics, different invoice, and sometimes the cheaper honest answer. Start at battery vs standby and the Anker SOLIX F3800. Stay on Anker SOLIX, not Anker.com retail.
A word about vanity plants
Some liquid-cooled money is really status money. Running the dryer and both condensers through an outage that shows up once every three years. A Wi-Fi module and a color-matched enclosure bolted onto a gas meter that is still too small. “Whole house” said out loud for the neighbors, when a load-managed 10–12 kW machine would have kept the heat, the well, and the groceries. The bigger class is genuinely real when the heat pump’s starting surge demands it, and the math will say so. Otherwise it is jewelry with a crankshaft. Hobbies are allowed. Do not file one under insurance.
It is also vanity if it never gets its oil. An engine that sits eleven months without exercise is a sculpture with a warranty. Check the honest outage history: a four-hour flicker every couple of years, with a fridge a power station could carry? Then the pad is a hobby, and the station is the plan.
Rooftop solar with a wall pack is a third budget entirely, and we will not sneak it into this category. If an installer is quoting your roof, you are on a different site: about.
Eight questions that keep a quote honest
- Show me the load calculation. Running and starting watts, and which loads get shed. No load calc means they are selling a box, not a plan.
- What is the altitude and temperature derate at this address? The nameplate shrinks uphill.
- Which transfer switch, and who lists it? Whole-panel, load-shedding, or a managed panel. The answer shapes half the invoice. Paths: cords, inlet, or ATS.
- Will the existing meter and pipe feed this engine, or is the upgrade in the bid? A starving engine sags exactly when you need it.
- Who pulls the permit, who calls inspection, who returns if it fails? Names, not shrugs.
- What is included? Pad, trench, start-up, first oil, warranty labor radius. Itemized, in writing.
- What does year two cost? Service contract versus DIY, with their numbers, not ours.
- Where does the exhaust point, and what clearances did you measure? Make them walk the lot, not the showroom.
Get it all in writing. A low equipment number with a vague “install TBD” is how a catalog price becomes the project you did not budget. Compare two bids on the same load list, never on brochure gloss. If a quote fights the order of operations in the buying guide, trust the load list. Automatic versus driveway also moves this invoice: standby vs portable.
If the invoice says no, you still get backup
Suppose the install is simply not this year’s project. Backup still exists. It hums instead of roaring. A power station carries the fridge, the network, the lamps, and most medical devices for hours, indoors, without a fume. The sticky on that aisle is the BLUETTI AC200L. Expandable home batteries add stored days, and on the F3800, real 240 volts. Neither replaces a well-plus-heat-pump plant through a week of ice. Both beat an engine you could not afford to install correctly.
The shops we actually link: Jackery, BLUETTI, and Anker SOLIX. Same price to you. No invented generator link sitting beside them. Method: how we work · arrangement: disclosure.
What we’re not claiming
These lines are a map for 2026 conversations. Your city is promised none of them. We will not price your trench from a desk. Confirm live quotes, fuel rates, and whether the HOA will allow the pad. Questions: contact.
Tonight’s homework, worth more than any brochure: write the loads down, give the 240-volt ones their own line, and ask every dealer for the load calculation before anyone says a price. The list runs the meeting after that.