Check the connection early
Heat pumps can add a material continuous load. Review contracted power, transformer rating, switchgear, protection, harmonics, starting method and cable routes before treating electrification as available.
Capacity is not only a network question
A site may have spare contracted capacity but lack transformer or board capacity. Conversely, staged compressors, thermal storage and load management may reduce the required peak.
Tariffs shape operation
Spanish electricity costs vary by time, contracted capacity and market arrangement. The economic model should use the site's actual tariff and test future scenarios rather than a national average.
Sources
General technical explanation. No specific external source claims are made on this page.