{"id":2323,"date":"2026-01-27T21:48:17","date_gmt":"2026-01-27T20:48:17","guid":{"rendered":"https:\/\/new.rogers-immobilien.de\/news\/solarpflicht-bei-dachsanierung-finanzielle-vorteile-durch-foerderungen-und-kfw-kredite-in-2025\/"},"modified":"2026-11-15T20:23:48","modified_gmt":"2026-11-15T19:23:48","slug":"efficiently-use-pv-system-increase-self-consumption","status":"publish","type":"post","link":"https:\/\/www.rogers-immobilien.de\/en\/news\/pv-anlage-effizient-nutzen-eigenverbrauch-erhoehen\/","title":{"rendered":"Making the Most of Your Solar System: 5 Tips to Increase Self-Consumption"},"content":{"rendered":"

Self-consumption describes the use of self-generated solar power within your household. Without additional measures, this share is around 25 to 35 percent. Through targeted strategies, this value can be increased to up to 80 percent. This reduces your purchase of grid electricity, lowers ongoing costs, and increases your security of supply.<\/p>\n

1. Retrofitting a property with a battery storage system<\/h2>\n

Retrofitting an electricity storage system makes it possible to store solar power produced during the day for consumption in the evening or night hours. Depending on the sizing, you can achieve degrees of self-sufficiency of up to 70 percent. The storage system should be tailored to the output of your photovoltaic system and your electricity demand<\/a>. Funding programs and manufacturer comparisons assist you with your selection.<\/p>\n

For lithium-ion storage systems, the typical capacity for single-family homes is between 5 and 15 kWh. High efficiency is important: modern systems achieve values of over 90 percent. You should also pay attention to the discharge capacity: this determines how many appliances can be operated simultaneously with stored energy. Intelligent storage solutions with forecast-based control adapt to your consumption behavior and automatically optimize charging and discharging times.<\/p>\n

Charging electric vehicles with solar power<\/h2>\n

Charging an electric car with self-generated solar power contributes significantly to increasing your self-consumption. For this purpose, the Use of a wallbox<\/a> with PV excess charging. This technology ensures that your vehicle is charged primarily with solar power when excess is available. The charging power should be adjusted to the PV output to avoid drawing power from the grid.<\/p>\n

Integrating a controllable wallbox into your energy management system enables the targeted use of surplus electricity. Modern wallbox chargers offer features such as phase switching or dynamic load management.<\/p>\n

For a three-phase PV system, an 11 kW wallbox with flexible power control is recommended. In combination with an EMS, charging is automated and prioritized for self-consumption \u2013 this not only reduces your electricity costs, but also extends the lifespan of your battery storage system by reducing its load.<\/p>\n

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\nImage: pixabay.com\/bayern_reporter_com<\/span><\/a><\/span><\/p>\n

3. Integrating electric heaters sensibly into the PV system<\/h2>\n

Electric heaters are suitable as a supplement to your PV system to use excess electricity efficiently. They can be used specifically in rooms where central heating is not required. Control via an energy management system ensures that the heating devices are only active when there is sufficient solar power production.<\/p>\n

Available technologies include infrared heaters, convectors, natural stone heaters, and storage heaters. Infrared heaters in particular are suitable for spot heating in living and working spaces due to their short warm-up time and flat design.<\/p>\n

To find the most efficient solution in each case, you can buy modern electric heaters with personal online consultation<\/a>. Depending on the location, size, and use of the rooms, as well as individual user behavior, the right heating system is available.<\/p>\n

For grid-connected systems with PV support, control via wireless thermostats or smart home systems is advisable. Important: The heating load should be matched to the PV output to prevent uncontrolled peak loads.<\/p>\n\n\t

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