Batería doméstica for New Builds: Include It in Your Building Plan

Why a obra nueva is the perfect time for a batería doméstica

Anyone building a new home faces a crossroads: make the right provisions now and prevent future renovation costs, or make expensive modifications later. For baterías domésticas, the choice is clear: sooner is better and cheaper.

With a obra nueva, you can install the wiring without any demolition work, size the cuadro eléctrico appropriately and reserve the ideal location for the battery. This saves an average of €500 to €1,500 in costes de instalación compared to a later retrofit.

Advantages of integration during the construction phase

Integrating a batería doméstica during the construction phase offers advantages that are not achievable with renovation.

• Lower costes de instalación — no demolition work, direct cable integration
• Optimal cuadro eléctrico layout — space for inversor and additional circuits
• Future-proof — ready for bomba de calor, cargador de VE and ampliacións
• Combine with paneles solares — install cables directly for optimal synergy
• Subvención — ISDE and provincial schemes apply

What to consider in your building plan

During construction, install thicker wiring (minimum 6 mm² for the battery circuit) and provide cable ducts for future ampliación. This costs little extra during a obra nueva but saves expensive disruption later.

Optimal cable infrastructure

Plan a cuadro eléctrico with space for a hybrid inversor, a contador inteligente and additional circuits. A future-proof cuadro eléctrico with a trifásico connection gives you the flexibility for a bomba de calor, cargador de VE and batería doméstica simultaneously.

Cuadro eléctrico sizing

A batería doméstica has specific requirements: temperature between 0°C and 45°C, dry, ventilated and not in direct sunlight. With a obra nueva, you can reserve an optimal location in the utility room, garaje or technical room.

Location selection for the battery

For obra nueva homes, the Anker SOLIX X1 or a Pylontech Force system is the recommended choice. These systems integrate seamlessly with hybrid inversors, support trifásico connections and are modularly ampliable as the hogar grows.

Recommended systems for obra nueva homes

Also consider an all-in-one system where the inversor and battery are combined. This simplifies installation and reduces the number of components in the cuadro eléctrico.

ISDE subvención, 0% IVA on paneles solares and baterías domésticas in combination, and provincial sustainability loans are applicable to obra nueva projects. Check with your municipality and province for current schemes, as these change regularly.

Subvenciones and financing for obra nuevas

Including a batería doméstica in your obra nueva is a smart long-term investment. The additional costs are limited, the savings are immediately noticeable and you lay the foundation for a home that is ready for 2027 and beyond.

• Minimum 6 mm² cabling for the battery circuit
• Trifásico cuadro eléctrico with space for inversor and additional circuits
• Dry, ventilated location between 0°C and 45°C
• Separate cable route from paneles solares to inversor

Conclusion

Ask your builder to include the necessary provisions in the building plan. We provide no-obligation advice on the optimal system and required specifications.

Contact our advisers for tailored obra nueva advice.