More than 60% of Romanians see the cost of storage systems as the main obstacle to purchasing and installing one, even though the vast majority of those interested consider green energy storage to be very important, according to a sociological survey conducted for the platform despre-energie.ro, a project by E.ON and Delgaz Grid.

For photovoltaic (PV) system owners, batteries are essential because they balance variable production (they store excess energy during the day and provide it in the evening or at night), increase self-consumption and reduce bills, ensure independence and safety, support the electricity grid (reduce overvoltage and help stabilize the system), and prepare the energy future (enable participation in flexibility markets and smart energy services).

According to the study, almost 9% of respondents say they lack information about the importance and benefits of installing an energy storage system with batteries, while 24.3% say they do not have adequate space for installation.

The decision to invest in a storage system would be mainly influenced by state funding through government programs, as indicated by 46.3% of respondents. Bill savings would motivate 30%, while 19% see independence from the electricity distribution grid as one of the major benefits.

The estimated budget for a complete system—comprising photovoltaic panels and batteries—is below €5,000 for 41% of study participants, while 37% calculated a budget between €5,000 and €10,000. About 14% estimate they would need between €10,000 and €15,000, and nearly 8% believe they would need more than €15,000.

The survey results indicate a market with growth potential, but also a significant need for information and financial support to accelerate the adoption of storage systems in Romania.

E.ON data confirms that although the initial investment remains high, storage systems can generate significant long-term savings. Batteries transform solar panels from a simple source of intermittent production into a smart, stable and efficient system. They represent the logical step toward autonomy, economic efficiency and active participation in the energy transition.