Solar Energy Systems

Complete solar power systems for home backup and off-grid living — solar generators, portable power stations, folding panel kits, and whole-home systems with wind charging and transfer-switch integration. From a 100W briefcase panel to a 10kW solar-and-wind home system, every kit is expandable so your power grows with your needs. Not sure what size you need? Use our Solar Sizer below or call our experts.

Shipping & Delivery

Shipping terms vary slightly by manufacturer. Gridwise Living solar panel kits and power stations ship free worldwide with no minimum order. Nature's Generator solar generators ship free within the contiguous U.S. (5–7 business days for small parcels; 6–12 business days curbside freight for larger units). Portable Sun LLC inverters ship free within the contiguous U.S., with larger units delivered via freight carrier — our team will contact you to schedule delivery.

Gridwise Solar System Sizer

Gridwise System Sizer

Find the right solar kit in about two minutes

Tell us what you want to power. We'll calculate your energy needs and match you to a complete kit — solar only, solar + wind, or wired into your home.

01Your loads
02Sun, wind & setup
03Your kit
Daily energy
0Wh/day

What do you want to run?

Check everything you'd power. Adjust the watts and hours if you know them — our defaults are typical for each item.

Watts (W) measure how much power something uses right now — like the speed of a car. Watt-hours (Wh) measure energy used over time — like miles driven. A 100W TV running 5 hours uses 500Wh. Your kit's battery and panels are sized by watt-hours; its inverter is sized by watts.

Select at least one item so we can size your system.

Your location and setup

Sunlight, backup needs, and how you'll connect the system decide which kit fits.

Your region's sunlight
This sets your "peak sun hours."
Panels don't produce full power all day. Peak sun hours compress a whole day of changing light into the equivalent hours of full-strength sun. Seattle averages about 3.5; Phoenix about 6. It's the single biggest factor in how much solar you need.
Days of battery backup
How many cloudy days should your battery cover without recharging?
This is called days of autonomy. One day works if you have grid power as backup or reliably sunny weather. Off-grid homes usually plan for two to three days so a stormy stretch doesn't leave the fridge warm.
How many of your items run at the same time?
This sizes the kit's inverter.
Batteries and panels make DC power; your appliances need AC power — the kind from a wall outlet. An inverter converts DC to AC, and it's built into every kit we carry. It must be big enough to handle everything running at once, plus the startup surge of motors like fridges and pumps.
Add wind power?
Wind keeps charging at night and on stormy days when solar can't.
A small wind turbine plugs into your kit just like a solar panel, but it generates whenever the wind blows — including at night and during the cloudy, windy storms that shut solar down. It won't replace your panels, but it's a strong second source in coastal, plains, and mountain areas. Several of our kits come with the turbine in the box.
How will you connect it?
Plug appliances straight in, or back up your home's actual circuits.
A transfer switch connects your system to your home's electrical panel, so during an outage your chosen circuits — kitchen, furnace fan, well pump, lights — run from battery power automatically through your normal wall outlets and switches. No extension cords across the floor. It's the difference between "powering some appliances" and "backing up your house." Several of our kits include one.

Your numbers, and the kits that fit

Solar needed = your daily watt-hours ÷ your sun hours ÷ 0.75 (real-world losses from wiring, heat, and charging). Battery needed = daily watt-hours × backup days ÷ 0.8, because batteries shouldn't be drained to zero — that reserve (called depth of discharge) keeps a battery healthy for years. Inverter needed = your peak simultaneous load plus 25% headroom. Motors like fridges and pumps also briefly surge 2–3× their running watts at startup, so check each kit's surge rating too.

Estimates use standard sizing rules (75% solar efficiency, 80% usable battery, 25% inverter headroom) and are a starting point, not an engineered design. Every kit above is expandable — you can add panels, batteries, or wind later. Not sure between two? Call our experts at 360-531-2023 and we'll size it with you for free.

20 products