
Off-Grid 3 kW System
3 kW standalone solar kit for sites without grid connection. 6× Tensite 500W panels and Growatt SPF 3000W. Panels, off-grid inverter and compatible lithium battery — select storage capacity when you order. Supply plus certified installation.
Ideal for a consumption of ~90–240 kWh/month.
Payback values the usable energy (~40%) against the cost of running a diesel generator, with ~4% average annual diesel price growth. Unusable surplus is lost — off-grid there’s no grid to export to.
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About this product
3 kW off‑grid solar kit for country houses
The 3 kW off‑grid solar kit is intended for country houses, cabins and remote locations without access to the electricity grid. It is the ideal base to achieve energy autonomy in small rural homes.
It includes 6 panels rated at 500 W and a 3,000 W hybrid off‑grid inverter, which can power essential loads during the day and, with the right battery bank, also at night.
Why this system?
This kit suits monthly consumption in the range of 90 to 240 kWh for small homes used occasionally or permanently with a moderate load profile.
Every off-grid order includes at least one compatible lithium battery; you pick the capacity at checkout to match autonomy and usage.
It is a strong alternative to diesel generators, cutting fuel costs and noise while providing a stable solar‑based power supply.
Estimated production and savings
Estimated annual production for the 3 kW off‑grid kit is about 4,950 kWh, enough to cover basic needs in a small dwelling or holiday home.
Compared with running a diesel generator (fuel and maintenance) or paying for a long, costly grid connection, indicative savings are around €1,720–2,475 per year depending on usage, with a payback of roughly 1.6–2.3 years. Use the configurator for the exact figure for your consumption and battery.
Components included
The kit includes 6 Tensite 500W TOPCon N‑Type panels totalling 3 kW of peak power, with high efficiency and durability for rural environments.
The inverter is a Growatt SPF 3000W hybrid off‑grid unit that manages solar generation, battery charging and load supply and can be combined with a backup generator if required.
Battery capacity is selected on the product page (lithium matched to the inverter). The package includes mounting structure, wiring and basic protections.
Specifications
Specifications
Frequently Asked Questions
Does the 3 kW off‑grid solar kit include batteries?
Yes. Off-grid kits always include at least one compatible lithium battery; you select the capacity on the product page to match autonomy and loads.
What can I power with a 3 kW standalone solar system?
You can cover lighting, an efficient fridge, small appliances and occasional power tools, as long as the battery bank and peak load are correctly dimensioned.
How much energy does a 3 kW off‑grid solar kit produce per year?
It produces roughly 4,950 kWh per year under average solar conditions.
Is a 3 kW off‑grid kit enough for a small cabin?
For a small cabin with moderate loads it is usually enough. If you plan to run many appliances at once or stay for long periods, the 6 kW off‑grid kit may be a better fit.
What kind of batteries are recommended for this kit?
For occasional use, deep‑cycle lead‑acid batteries can work; for frequent or daily use, lithium batteries are generally recommended due to their efficiency and lifespan.
Documents
Datasheet
User manual
Datasheet
Other documents
User manual
Datasheet
Other documents
User manual
Datasheet
User manual
Quick start
Certifications
Other documents
User manual
Quick start
Certifications
Other documents
User manual
Quick start
Certifications
Other documents
User manual
Quick start
Certifications
Other documents
User manual
Quick start
Certifications
Other documents
User manual
Quick start
Certifications
Other documents
Other ways to go solar with us
If a ready-made kit isn't quite what you need, pick the path that fits.
Auto-design
Tell us your address and share a recent electricity bill — we size the system, estimate savings, and show a ready proposal.
Best if: you don’t know how many kW you need yet.
Builder
Pick each component yourself: panels, inverter, battery, EV charger. Live price as you go.
Best if: off-grid, hybrid, or a specific brand in mind.