3 kW 1-Phase System

3 kW solar kit for small homes

This 3 kW solar kit is designed for small apartments and houses with 1–2 people who want to cut their electricity bill with a modest initial investment. It is a practical first step into self-consumption, without oversizing the system.

With 6 high-efficiency panels and a 3 kW inverter, the kit covers typical day-to-day uses such as lighting, fridge, washing machine and small appliances. It lets you start generating your own clean energy while keeping the system simple and easy to manage.

Why this system?

If your monthly consumption is between roughly 105 and 280 kWh, this 3 kW kit is usually a very good fit for a small home. It is aimed at users who spend part of the day at home and can align a good share of their usage with solar hours.

Compared with larger systems, the main benefit is the low upfront cost: it is the most affordable kit in the range while still delivering meaningful savings every year. For many expats, it is the ideal way to test solar in Spain before committing to a bigger installation.

As an on-grid 1‑phase system, it connects easily to the existing electrical installation. Surplus energy can be compensated in your bill depending on your retailer’s conditions, improving the overall payback of the investment.

Estimated production and savings

The estimated annual production for this 3 kW kit is around 4,950 kWh, which can cover a large share of the electricity use of a small household when the profile is right. With an electricity price of about €0.19/kWh including VAT, the reference annual savings are around €562–958 according to our data.

This leads to a payback time of roughly 3.0–5.0 years in typical conditions, as long as the kit is correctly sized to your consumption. After that, most of the energy produced becomes net savings over the remaining lifetime of the system.

Components included

The kit includes 6 Tensite 500W TOPCon N-Type solar panels, adding up to 3 kW of peak power. These modules offer high efficiency and good performance in warm climates, which is especially relevant in many Spanish regions.

At the core of the installation you have a Growatt MIN 3000TL-XH 3 kW on-grid 1‑phase inverter. It is designed for residential self-consumption, offers monitoring options and is built for reliable operation over many years.

The package is completed with the mounting structure for the panels, basic wiring and protections with Enera Solar installing and commissioning the system in compliance with local regulations.