In the three application scenarios of energy storage: power generation side, power grid side and user side, the fundamental driving force of household energy storage comes from power supply resilience and financial savings. According to statistics, more than 90% share of household energy storage in Europe is concentrated in the top five countries — Germany, Italy, the United Kingdom, Austria and Switzerland.

Rooftop solar will be installed in all new buildings across the EU.

According to a copy of the plan, called “RepowerEU”, cited by the financial times, the commission wants half of the group’s energy to come from renewable sources by 2030, more than double its current level. One of the proposals in the plan is to “introduce an obligation to install rooftop solar installations in all new buildings and all existing buildings with an energy performance grade D and above (the most energy intensive)”. SolarPowerEurope CEO said: “The EU needs to wean itself off its dependence on Russian gas and oil as soon as possible. By the end of 2022, more than 30GW of solar will be deployed, including 1.5 million new solar roofs. By 2030, Europe will be able to achieve 1000GW of solar installations.”

The typical use scenario of household energy storage is to form a household energy storage system with household photovoltaic. The typical composition of PV energy storage system includes solar module, controller, inverter, energy storage battery, load, etc. There are many technical routes. According to the way of energy collection, there are mainly dc coupling and AC coupling topological structure at present.

Accelerating Europe’s transition to renewable energy will reduce carbon emissions and dependence on imported energy, with photovoltaic energy storage becoming standard in every home.