Energy Storage

More and more households are investing in energy storage systems—also known as solar batteries, PV storage, home batteries, or battery storage—to shield themselves from rising electricity prices and gain independence from the grid. With a solar battery storage system, you can increase your self-consumption of solar power to up to 80%, compared to just 30% without storage. This allows you to make the most of your affordable rooftop solar, instead of feeding it into the grid for a comparatively low return. As a self-produced kWh of solar power costs around €0.12, versus €0.30 for grid power, it’s clear: an energy storage system means greater independence and real savings. Below, you’ll learn how modern energy storage works, which technologies and brands are available, and what to consider for selection, installation, and available incentives.

How Does a Home Energy Storage System Work?

An energy storage system (solar battery or PV storage) is essentially a battery that stores surplus power generated by your photovoltaic system. During the day, solar panels often generate more electricity than your household can use—especially at midday. Without storage, this surplus goes to the public grid. With storage, however, the excess is saved in the battery and then used in the evening, at night, or on cloudy days, allowing you to rely on your own solar electricity and reduce how much you have to buy from the grid.

Modern storage systems are fully automated: an energy management system decides in real time whether to supply your household, charge the battery, or (if full) feed excess power into the grid. Many systems even offer emergency backup power in case of an outage, and when paired with a suitable inverter, can keep essential loads running during blackouts. This makes energy storage a tool for maximizing self-consumption, lowering bills, and boosting your energy security.

Lithium-Ion vs Lead Batteries – Technology Comparison

Lead-acid batteries (gel or AGM) were once common in home storage, but today, almost all systems use maintenance-free lithium-ion (especially LiFePO₄) batteries for higher efficiency, long lifespan, and greater usable capacity. Here’s a comparison:

• Efficiency: Lithium delivers 90–95% roundtrip efficiency, lead-acid only 70–85%.
• Usable Capacity (DoD): Lithium can be deeply discharged (often 80–95%), lead-acid typically only 50%.
• Lifespan: Quality lithium batteries last for 5,000+ cycles (10–15 years), while lead-acid generally lasts 500–2,000 cycles (5–8 years).
• Cost: Lead-acid batteries cost less upfront, but lithium is more economical over the lifetime.
• Maintenance: Lithium systems are virtually maintenance-free, while lead-acid batteries may require maintenance like topping up water.

That’s why LiFePO₄ lithium batteries are now the gold standard in modern energy and solar storage systems.

Popular Brands: Zendure, Anker SOLIX, Pylontech

The home battery market is growing rapidly. NYLYN Solar offers extensive solutions for all needs—from compact plug-and-play systems for balcony solar (Zendure SolarFlow or Anker SOLIX Solarbank) to modular, expandable batteries for large PV installations (e.g. Pylontech). All use long-life LiFePO₄ cells and deliver smart energy management for both residential and commercial needs. Many are compatible with hybrid inverters from top brands like Victron, Growatt, or SMA, making them easy to integrate into your solar setup.

How to Choose the Right Energy Storage System

Your ideal storage system depends on your specific needs and solar setup. Consider:

• Daily energy use: Analyze your day/night load and critical appliances.
• Required output & backup: Choose adequate power/output and consider backup capacity.
• Budget and value: Weigh system cost vs. long-term savings, considering any subsidies or incentives.
• Technical compatibility: Ensure the battery works with your existing inverter/PV system.
• Desired independence: Medium storage covers basic needs; maximized independence means a larger, scalable system.

Installation, Maintenance & Incentives

Installation: Plug-and-play systems (like Zendure SolarFlow or Anker SOLIX) are designed for user installation, but larger batteries should be installed by a licensed electrician in accordance with local codes and best practices. Lithium batteries should be housed in a dry, well-ventilated area, protected from extreme temperatures.

Maintenance: Modern lithium batteries require almost no upkeep; the integrated battery management system (BMS) takes care of protection and monitoring. It's still wise to check your system display/app and schedule a yearly professional check. Avoid extreme temperatures to ensure maximum lifetime and safety.

Incentives and Financial Support

Across much of Europe, energy storage and home batteries benefit from incentives like VAT reductions, subsidies, and grants for solar self-consumption. Stay updated with local/national organizations or contact NYLYN Solar for tailored advice; our team helps you secure the best solution and all available support.

Your Path to Energy Independence with NYLYN Solar

An energy storage system brings true solar independence within reach. The NYLYN Solar team helps with planning, selection, installation, and support—whether for small balcony kits or whole-house battery systems. Contact us for a personal consultation and start your storage journey with NYLYN Solar today. Boost self-consumption, safeguard against outages, and benefit from available incentives—all with one innovative solution!