Since 2008
Based in Belgium and France
+ 60 000 clients
Our blog
A.S.S.
Shopping Cart
Batterie physique ou virtuelle pour votre installation photovoltaïque ? Découvrez notre comparatif complet 2026 avec...
Comprehensive technical guide to Deye hybrid inverter configuration: energy bus architecture, critical BMS...
Mise à la terre photovoltaïque conforme RGIE (Belgique) et NF C 15-100 (France) : résistance ≤30Ω, sections câbles...
Découvrez comment la tarification dynamique et le tarif Impact ORES transforment la rentabilité du stockage d'énergie...
'scomprehensiveguideto configuring a DEYE three-phase inverter on a 3x230V network without neutral (IT) in Belgium....
Sizing your battery bank correctly is THE key to the profitability of a solar storage system. If it is too small, it will not cover your night-time needs. If it is oversized, it represents a poorly optimised investment with a longer return on investment.
This sub-category guides you through the precise sizing of your battery storage: calculating the capacity required according to your consumption profile, choosing between 48V and high-voltage technologies, and analysing profitability according to the context in France/Belgium (end of the meter running backwards, Wallonia incentive tariff).
How to calculate the required battery capacity? Three complementary methods: night-time consumption method (1 night's autonomy = consumption from 6 p.m. to 8 a.m.), days of autonomy method (2-3 days without production for isolated sites), and optimised economic method (cost-effective capacity vs. cost per kWh stored). Our ultimate guide (2,395 views) details calculations with real-life examples.
48V (low voltage) vs high voltage: which to choose? 48V-51.2V systems (Pylontech, BYD, Marstek) dominate the residential market: simplicity, broad compatibility, increased safety. High-voltage 150-400V systems (Huawei LUNA, BYD HVM, LG Chem) offer superior efficiency and compactness, but are more expensive and limit the choice of inverters. Our comparisons analyse optimal use cases.
You can also discover profitability scenarios by country: in Wallonia, with its incentive tariff, storage becomes relevant from 5-6 kWh. In France, with off-peak hours, charge/discharge arbitrage optimises ROI.
Batterie physique ou virtuelle pour votre installation photovoltaïque ? Découvrez notre comparatif complet 2026 avec tarifs réels (MyLight, Urban Solar, JPME) et analyse ROI kit Wattuneed 6 900 €.
ORES rejects 27 high-voltage substations and warns of 10,000 vulnerable circuits. The much-vaunted PV + heat pump duo reveals its critical flaws: winter undervoltage, grid saturation, total dependence. Factual analysis and pragmatic solutions.
From individuals to prosumers, from homes without panels to off-grid sites: discover which storage battery exactly matches your energy profile. The complete Wattuneed guide with real scenarios in France & Belgium, 48V vs High Voltage comparison, and precise profitability calculations.
Découvrez les causes des décrochages d'onduleurs photovoltaïques et les solutions efficaces
Solar battery sizing is changing with the arrival of Belgian dynamic tariffs. Find out how to optimize your energy storage and maximize your savings.
Découvrez les avantages et inconvénients des batteries 48V et haute tension pour optimiser votre kit solaire et maximiser votre autonomie énergétique.
Discover how to maximize self-consumption with a Sofar ESI AC coupling and a BTS battery, without modifying your existing installation.
2024 solar battery comparison: make the right choice for your photovoltaic system! Discover our comprehensive guide to choosing the best solar battery for your budget, your needs and your usage profile. Compare technologies (Lithium, Gel, OPzS, OPzV), analyze the real price per useful kWh and benefit from expert advice to maximize the profitability of your storage. Reliability, durability, cost of use: find the ideal solution with our detailed comparison table. 👉 An essential tool for any...
check_circle
This store asks you to accept cookies for performance, social media and advertising purposes. Social media and advertising cookies of third parties are used to offer you social media functionalities and personalized ads. Do you accept these cookies and the processing of personal data involved?