Sizing & Selection

Find out how dynamic pricing and the Impact ORES tariff will transform the profitability of solar energy storage in Wallonia from 2026 onwards. A comprehensive technical analysis of actual costs and optimisation strategies.

Systèmes all-in-one (Zendure, EcoFlow, Bluetti, Marstek) vs modulaires (Deye, Victron + Pylontech) : comparatif technique. Réparabilité, performances, coûts

A complete technical guide to connecting a genset to a hybrid inverter: rigoroussizing ,secure cabling , fielddiagnostics and preventive maintenance.

Master the 6 AC Coupling configurations to add batteries to your existing photovoltaic installation: Deye, Sofar, Fronius compatible inverters, three-phase without neutral, zero injection.

Discover the 10 critical mistakes that compromise your photovoltaic installation and how to avoid them to ensure optimal performance and maximum profitability of your solar panels.

Discover everything about 800 VA plug & play solar kits in 2025: Belgian & French legislation, compatibility, sizing, safety and profitability.

Find out why it’s essential to install a surge protector on your Victron-equipped self-contained houseboat, especially when moored at the jetty. Diagrams and practical tips included.

Master every step of your photovoltaic panel installation with this comprehensive technical guide: from site study to component selection, become a solar energy producer.

Discover our complete toolkit for sizing, calculating, and optimizing your photovoltaic system. Free simulators, calculators, and guides to help you succeed with your solar project.

Make your 100x100cm grow tent completely self-sufficient! Solar kits from €309, pay for themselves in 10 months. Expert technical guide from Wattuneed.

At Wattuneed, we offer turnkey solar solutions to maximize your self-consumption of energy. Our solar panels, photovoltaic kits and hybrid inverters combine ease of installation and performance, enabling you to produce and store your own energy while reducing your costs. Whether you're an individual or a company, our products offer you sustainable, environmentally-friendly energy autonomy.

Discover all the advantages ofsolar self-consumption to reduce your electricity bill, enhance the value of your property and protect the environment. This comprehensive guide explains how a solar installation works, what equipment is essential (solar panels, inverters, batteries) and how to choose the right installer. Wattuneed can help you with your renewable energy project.