Power storage

Would you like to use your self-generated solar power even when the sun isn't shining? With a high-quality Power storage Increase your self-consumption from just 30% to up to 70% and become significantly more independent from rising electricity prices. Modern battery storage systems allow you to store excess PV power during the day and use it in the evening or at night – for maximum energy independence and optimal cost-effectiveness. Discover PVundSO's range of energy storage systems from leading manufacturers in various capacities for your home or commercial project.

The advantages of an electricity storage system

A power storage system is far more than just a battery – it is the key to your energy independence:

• Maximum self-consumption and cost-effectiveness: Without storage, you can only use about 30% of your solar power directly. With battery storage, this figure rises to 60-70%. Our customers thus save significantly on electricity costs, and modern storage systems typically pay for themselves within 10-15 years.
• Energy independence and security of supply: Reduce your dependence on your energy supplier and protect yourself against rising electricity prices. Many modern storage systems also offer an emergency power function that provides you with energy even during power outages.
• Contribution to climate protection: Increased self-consumption means less fossil energy from the grid. Electricity storage supports the more efficient use of renewable energies and contributes to the energy transition.

Finding the right storage size

The optimal sizing of your electricity storage system is crucial for its usefulness and cost-effectiveness:

• Dimensioning as required: A common guideline is 1 kWh of storage capacity per kWp of installed PV capacity. However, the optimal storage size should always take your personal consumption situation into account – especially your energy needs in the evening and at night.
• Typical sizes: For single-family homes, electricity storage systems with a capacity of 5-15 kWh are usually suitable, depending on household size and consumption habits.
• Consumption estimate: Consider your electricity consumption outside of daylight hours. Typical guidelines: washing machine 1 kWh per wash cycle, dishwasher 0,7 kWh, evening lighting and electronics approximately 2-4 kWh per evening. In addition, there is the base load from refrigerators, standby devices, etc., which amounts to approximately 2-4 kWh per night.
• Avoid oversizing: An excessively large storage capacity will not be fully utilized and will reduce efficiency. It is better to size it moderately and expand it later if needed.

Quality criteria and purchase decision

When buying a power storage system, you should pay attention to the following factors:

• System efficiency: High-quality storage systems achieve overall efficiencies of 95% and more. Efficient systems minimize energy losses and maximize the use of your solar power.
• Price-performance: Compare the total cost per kWh of storage capacity, including installation. Larger storage systems often have better prices per kWh, but they should be appropriate for your needs.
• Compatibility: Check compatibility with your existing inverter or plan a coordinated complete system. AC- and DC-coupled systems each have their advantages and disadvantages.
• Extensibility: Choose a system that can be expanded modularly as energy needs increase. Many manufacturers offer stackable battery modules for future upgrades.
• Warranty and Service: Ensure comprehensive warranty coverage and reliable service from the manufacturer throughout the entire usage period.

Your electricity storage system from PVundSO

Our product range includes proven energy storage systems from leading manufacturers, distinguished by their quality, efficiency, and reliability. From compact systems for smaller households to expandable solutions for demanding applications – we have the right solution for your needs. All systems are optimized for integration into existing PV systems and meet the highest safety standards.