New for the soft 2025 DIY season

Solar for the spaces
the big-box aisle forgot.

Sunborne curates portable, plug-in balcony, and expandable off-grid systems for renters, urban dwellers, van-lifers, weekend cabin owners, and homeowners without usable rooftop space — every SKU hand-picked, freight baked into the listed price, and supported by a staffed desk of working solar designers.

8
U.S. distribution centers, no cross-border surprises
UL / IEEE
Certified where the listing calls for it
1
Listed price = price paid (freight baked in)

Array readout

800W balcony kit

Today

3.4 kWh

42%78%61%

What we ship

Portable

Folding arrays, briefcase panels, rolling briefcase power stations.

Balcony

600–800W plug-in kits, single-string microinverters, landlord-safe wiring.

Off-grid

Expandable lithium kits, MPPT controllers, complete DIY bundles.

Catalog · v.1

Four categories. No filler SKUs.

We don’t list everything. We list what we’d ship to a friend — UL/IEEE certified where the listing calls for it, sourced from a vetted roster of domestic and allied manufacturers while the IRA supply expansion is still open.

Request the full SKU list

01 — Portable

Built for the trunk, the tent, and the third-floor walk-up.

Folding arrays from 100W to 400W, self-heating LiFePO4 batteries, and rolling power stations that hum below a movie’s soundtrack. Pack light, plug in, head out.

100W → 400W · <9 kg · IP65Get a quote →

02 — Balcony

House pick

The maximum-allowable balcony array, sized once and shipped complete.

600–800W plug-in kits with a single-string microinverter and the kind of wiring cover that gets you a green light from the landlord. Listed price includes freight, brackets, and the small parts.

600W → 800W · single-stringGet a quote →

03 — Off-grid

An expandable lithium system you can grow one panel a year from.

Stackable 5 kWh modules from a vetted roster of U.S.-and-allied manufacturers, paired with 40A MPPT controllers. Add panels next season — same battery bus, same charge profile, no forklift upgrade.

5 kWh → 40 kWh · stackableGet a quote →

04 — Add-ons

Design, permit, and the parts the spec sheet forgot.

Permit-ready prints for the bigger arrays, weather-rated combiner boxes, charcoal filters for generator neighbours, and accessory cables we tested because the ones in the box never fit.

DIY + permit-readyGet a quote →

Who it’s for

Pick the shape of your space. We pick the SKUs.

The same eight BALCONY kits on a marketplace site don’t help you decide which one fits a fourth-floor walk-up. Group your space here — we’ll point to the SKUs we’d actually spec.

Solar without signing a roof lease.

Plug-in balcony kits and rolling battery carts designed for leases, walk-ups, and the third-floor fire escape. Move it when you move — no drilling, no landlord negotiations, no panel on the roof you don’t own.

Typical starter SKU
  • 800W plug-in balcony kit
  • 3.2 kWh rolling cart
  • Single-string microinverter

How it works

A working designer on the phone, not a configurator.

  1. 01

    Tell us the space.

    A fourth-floor walk-up, a 24-foot cargo van, a screened-in porch above a tree line, a vacant lot off generator power — span, orientation, shading, and what you actually want to run.

  2. 02

    A working solar designer sizes it.

    Not a chatbot, not a configurator. A staffed desk of working solar designers — engineers, NABCEP-certified installers, electricians — turns your space into a panel count, a battery bus, and a runtime budget that survives a cloudy week.

  3. 03

    Ship freight-included. Plug it in.

    Every SKU ships with freight baked into the listed price — no $480 panel-fee ambush on the doorstep. U.S. distribution, UL/IEEE certified where applicable, and a phone number that picks up if something doesn’t fit.

FAQ

The questions you actually asked us.

Couldn’t find yours? Drop us a line at sunborne@polsia.app.

Talk to a designer

Send us the space.
We’ll send back a spec.

A south-facing balcony on a third-floor walk-up. A 24-foot cargo van with the alternator running all night. A screened-in porch over a tree line. A vacant lot off generator power. Whatever the shape — we’ll size a system you can actually run.

Request design helpOr email a designer

One working designer per request — usually a same-day reply with a panel count and a battery bus. No chatbot, no drip funnel.