Short answerFor a small stock or garden system the solar side is often a few hundred dollars: 400 W of Eco-Worthy panels cost about $220 to $310 on 18 October 2026. The well, pipe, tank and trenching usually cost more than the pump and panels together.
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Key takeaways
- Panels cost about $0.55 to $0.77 a watt at the merchant prices we checked in October 2026.
- On stock-water projects, the tank, pipe and trenching often cost more than the solar.
- The well itself dwarfs every other line: get local drilling quotes.
Component prices we checked
Prices below were read on the merchants' own stores on 18 October 2026. They change often and sales are frequent, so treat them as a snapshot. VEVOR's pump listings showed promotional prices that changed while we were checking, so we do not print a VEVOR pump price here; follow the link for the current one.
| Component | Item | Price | Per unit |
|---|---|---|---|
| Panel | Eco-Worthy 100 W 18V, single | $76.99 | $0.77 per W |
| Panel | Eco-Worthy 100 W 18V, 4-pack | $219.96 | $0.55 per W |
| Kit | Eco-Worthy 400 W 12V kit with 40A MPPT controller | $419.99 | $1.05 per W |
| Charge controller | Eco-Worthy 30A PWM | $45.99 | |
| Charge controller | Eco-Worthy 60A MPPT | $189.99 | |
| Battery | Eco-Worthy 12V 100Ah LiFePO4 (about 1.28 kWh) | $219.99 | about $172 per kWh |
| Battery | LiTime 12V 100Ah self-heating (Canadian store) | C$495.99 | about C$388 per kWh |
| Mount | Eco-Worthy adjustable mount, 1 to 4 panels | $129.99 |
Eco-Worthy 100W 18V monocrystalline panel
The building block for a 12V or 24V pump array, or a battery-charging array.
- Power
- 100 W
- Nominal
- 12V class (18V)
- Packs offered
- 1, 2 or 4
on eco-worthy.com, 18 October 2026
Eco-Worthy 400W 12V off-grid kit
A battery-buffered 12V pumping system: panels, MPPT controller, brackets and cables in one box.
- Panels
- 4 x 100 W (Vmp 20.2V, Voc 24.5V)
- Controller
- 40A MPPT, 12V/24V, under 100V PV input
- Mounting
- Z brackets
- Battery
- Not in the base kit (optional bundles add one)
on eco-worthy.com, 18 October 2026
Eco-Worthy 12V 100Ah LiFePO4 battery
1.28 kWh of storage for night or cloudy-day pumping. Low-temperature charge protection.
- Chemistry
- LiFePO4
- Capacity
- 12.8V 100Ah (about 1.28 kWh)
- Extras
- Bluetooth, low-temperature protection
on eco-worthy.com, 18 October 2026
We have not tested these products; specifications are the merchant's own. Affiliate disclosure.
What a small system adds up to
Take the worked example from how to size a solar water pump: about 120 W of panels at the floor, realistically 200 to 400 W with margin. At the panel prices above, 400 W of panels is about $220 to $310 before the mount. Add the pump and its controller, drop pipe, cable, safety rope, a check valve, a float switch, the tank, and the pipe from well to tank. On most stock-water projects the tank, the pipe and the trenching cost more than the solar.
Costs that are not on any product page
- The well. Drilling is priced by the foot and varies widely by region and geology. Get local quotes; a new well dwarfs every other line here.
- Pulling and setting the pump. On a deep well this needs a rig or a pump hoist and often a licensed installer.
- Trenching below the frost line for year-round lines.
- Fencing around the wellhead, array and tank in livestock country.
- Replacement parts: diaphragm and valve kits, a controller, eventually a battery.
Panels and batteries in more depth
Our sister site SolarPanelCosts.com tracks what US solar panels and batteries cost and has sun and production figures by state. For what a piece of rural land can earn, including leasing it for solar or grazing, see Landholder.
Three DC well pumps side by side on the merchant's own figures, plus panels, controllers and batteries.