Motorized Shades: Battery, Wired, or Solar Power?

Wednesday, September 16, 2026 — Wholesale Blind Factory

Motorized shades run on one of three power sources: rechargeable battery (the retrofit default — no electrician, charge once or twice a year), hardwired (the new-construction gold standard — install it and forget power exists), or solar trickle-charge (a small panel that keeps a battery topped up on sun-facing windows). All three drive the same Somfy motors, remotes, apps and automation scenes; the choice is purely about your walls, your windows, and your tolerance for the occasional charging chore. Here's how each one actually lives in a home, and how we'd choose window by window.

Option 1: Rechargeable battery — the retrofit workhorse

Most motorized shades we install in existing homes are battery-powered, because the pitch is unbeatable: no electrician, no wall-fishing, no drywall repair — the motor and its lithium battery live inside the shade's tube or headrail, and the whole thing installs exactly like a manual shade.

The charging reality, honestly: a typical shade cycled a couple of times a day runs months per charge — commonly six months to a year, less for big heavy shades or ones automated to move many times daily. Charging is a USB-style plug-in (or a swappable wand on some designs) that takes a few hours. It's the 'smoke detector beep' of the shade world: infrequent, mildly annoying, entirely manageable.
Low-battery behaviour: the app warns you well before anything stops; nobody gets trapped behind a dead blackout shade at noon.
Best for: almost any retrofit; renters and strata owners who can't touch wiring; anyone testing motorization on two windows before committing the house.
The honest caveat: a home with fifteen battery shades has fifteen charging dates. Fine when they're staggered and the app tracks them; worth hardwiring instead if you're motorizing everything and renovating anyway.

Option 2: Hardwired — install once, forget forever

Wired motors draw power from the house — low-voltage runs to a transformer, or line-voltage on some systems — and simply never need anything again. No charging, no battery replacement in a decade, full automation duty without power anxiety.

When it's easy: during construction or renovation, running wire to window heads costs little and buys permanent freedom. If drywall is open anywhere near your windows, run the wire even if the shades come later — future-you will be grateful.
When it's hard: retrofitting wire into finished walls means an electrician, patching and paint — cost and disruption that battery motors exist to avoid. That's the whole trade.
Best for: new builds and renovations, heavy or oversized shades that work batteries hard, high-traffic automation (shades moving on schedule several times daily), commercial installs, and anywhere reaching the shade to charge it is its own project — the tall stairwell glass, the skylights.
Planning note: power placement is a measure-stage decision — which side the motor sits, where the wire exits — so tell us wiring is on the table before templating, not after.

Option 3: Solar trickle-charge — the sun pays the bill

The middle path: a slim solar panel (mounted on the shade or the glass, facing out) trickle-charges the battery continuously, so a shade on a bright window effectively never needs plugging in.

Where it shines: exactly the windows that need shades most — sunny south and west exposures. The problem (too much sun) powers the solution, which is genuinely elegant.
The BC caveat, plainly: trickle-charging depends on light, and a Vancouver November delivers less of it. On our coast, solar works best as 'battery that rarely needs the cable' rather than 'never think about power again' — north-facing and heavily shaded windows should skip it, and deep winter may still want one top-up charge.
Aesthetics: the panel is small and tidy, but it is visible on the glass; strata street-facing rules occasionally have opinions. We'll flag it if yours might.
Best for: hard-to-reach sunny windows where charging would be a ladder job; skylights with good exposure; anyone who liked battery simplicity but hates the calendar reminder.

Choosing window by window (our actual decision tree)

Renovating or building? Wire everything you can while walls are open. Done.
Retrofit, normal reachable windows? Battery. The charging chore is smaller than people fear.
Retrofit, tall/skylight/awkward windows? Solar if the exposure is sunny; battery with a planned annual charge if not; wired if an electrician is coming anyway.
Whole-home automation with shades dancing on schedules? Wired where feasible — duty cycles that heavy make batteries a part-time hobby.
Two-window trial run? Battery, always. Commit later.

Mixed homes are normal: wired great-room shades, battery bedrooms, one solar skylight. The Somfy ecosystem doesn't care — one remote, one app, one 'goodnight' scene runs them all.

What it means for cost and longevity

Battery motors carry a modest premium over manual shades and need no trades; wired adds electrician time but subtracts every future battery; solar adds a panel's cost and subtracts the ladder. Across a decade, the totals land closer together than the sticker prices suggest — which is why we quote power options side by side at the consultation rather than defaulting anyone. Motors across all three options are the same serviceable Somfy hardware we stock parts for and repair; power choice doesn't change the lifetime warranty on the shades we build.

The bottom line

Battery for retrofit simplicity, wired for install-and-forget permanence, solar for sunny unreachable glass — same motors, same automation, different relationship with power. Book a free in-home consultation and we'll walk your actual windows: which walls could take wire, which exposures earn a panel, and which shades should just take the twice-a-year charge and get on with it.