Sizing & Selection

Choosing the right solar kit requires precise sizing based on your actual needs. An undersized kit will only cover a small portion of your consumption, while an oversized kit represents a poorly optimised investment.

This sub-category helps you choose the solar kit that is perfectly suited to your consumption profile, budget, available space and self-consumption goals. Discover our detailed comparisons between brands, technologies and configurations.

How do you calculate the power you need? First, analyse your annual electricity consumption and your daily profile. An average British household consumes 3000-5000 kWh/year. A 3-4 kWp kit can cover 40-60% of these self-consumption needs, depending on exposure and consumption habits. Our calculation tools help you accurately estimate your production and self-consumption rate.

What are the differences between the kit ranges? The 300-800W plug & play kits are suitable for reducing consumption (refrigerator, internet box, standby). The 1.5-3 kWp kits are designed for significant self-consumption with or without batteries. Kits >5 kWp allow for almost total autonomy or the resale of surplus energy.

Our comparison guides analyse the Zendure SolarFlow, EcoFlow PowerStream, Marstek Venus, Deye + Pylontech, Victron systems, and many others. Compare actual performance, warranties, scalability, after-sales service, and make an informed choice.