Solar Panels and Lithium Batteries: The Difference Between Reducing the Bill and Self-Sufficiency in Sales

Solar Panels and Lithium Batteries: The Difference Between "Reducing the Bill" and "Self-Sufficiency" in Sales

Installing solar panels is common, but the real estate revolution lies in energy storage (batteries). A tech-savvy buyer knows that solar production happens when they are not at home (during the day) and that, without batteries, this energy is fed back into the grid for next to nothing (or offered for free). A house with...

16 Feb 2026 min de leitura

Technical Analysis of the UPAC (Self-Consumption Production Unit): When we sell a house with this system, we highlight the engineering behind it:

Storage Capacity: We explain if the system has a 5kWh or 10kWh battery. This translates to "Free Nights".

Emergency Backup: If the system has an "Island Mode" function (it works even if the EDP grid goes down), this is a very strong safety argument.

MCP (Compensation Mechanism): We verify if the surplus sales contract is active and transferable.

The Impact on Price: A simple solar system is worth $2,000. A hybrid system with batteries is worth between €8,000 and €12,000. At Royal House, we present monitoring app graphs (e.g., FusionSolar or Victron) to prove to the buyer: "This house had an energy cost of €10 in January." This factual proof allows you to increase the selling price well above the cost of the equipment.

👉 Is your house a power plant? Let's increase the value of every kilowatt in the sale: Schedule here: https://calendar.app.google/FYW6GwVH7RqQn33u5