The new withdrawal profile of high-efficiency homes
The coordinated introduction of heat pump thermal generators, induction hobs for cooking food and home charging stations for electric vehicles radically changes the hourly and seasonal load curve of the building compared to the old construction standards. If during the summer months the photovoltaic production can easily absorb a large part of the needs linked to summer cooling and the production of domestic hot water, during the winter season the lower solar radiation coincides with the peak absorption of the heat pump for space heating.
This temporal misalignment entails an inevitable amount of withdrawal from the public distribution network, which must be supported by an appropriate sizing of the power used to avoid unwanted trips of the meter and guarantee the perfect simultaneous use of all the most energy-intensive equipment present in the building.
The integration between plant logic and supply contracts
The perfect synergy between the thermotechnical sizing of the building and the tariff conditions agreed upon constitutes the essential pillar for achieving the actual economic convenience promised by energy efficiency interventions. An advanced plant system, equipped with electrochemical storage and heat pumps with modulating compressors, allows the activation of priority loads to be programmed in time slots in which self-produced energy is abundant or in which the cost of the electricity withdrawn is particularly advantageous.
In an extremely dynamic and complex market panorama, characterized by the coexistence of single-hourly tariffs, multi-hourly formulas and indexed price contracts, carefully selecting the best electricity and gas operator allows you to make the most of the huge investments made for the building envelope and for the modern technological equipment installed, preventing disproportionate fixed quotas or contractual surcharges from nullifying the performance estimated during the energy certification phase.
From integrated design to cost-conscious management
To maximize the overall performance of the building over the years, professionals and clients must consider the contractual supply clauses as an integral part of the building project, like the choice of perimeter insulation or thermal break windows.
The adoption of advanced home automation platforms for the integrated management of loads allows you to constantly monitor energy flows and calibrate the operating parameters based on the real habits of the family, promptly highlighting any anomalies compared to the forecast consumption estimates.
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