Choosing the equipment for a modern home is no longer just about comparing kitchen or bathroom catalogs. The NF C 15-100 standard, published on August 23, 2024, and applicable since August 24, 2025, requires, for example, a dedicated circuit for electric vehicle charging.
Residential solar storage is accelerating. The requirements of RE2020 redefine energy performance thresholds. These are all parameters that concretely change the list of items to be decided before, during, and after construction.
Comparison Table: Equipment Items and Decision Criteria
Before detailing each item, a summary table allows for visualizing common trade-offs. The data is based on regulatory constraints and documented trends in 2025-2026.
| Equipment Item | Regulatory Constraint | Impact on Comfort | Installation Complexity Level |
|---|---|---|---|
| EV Charging Circuit | NF C 15-100 (dedicated circuit, suitable differential) | High if an electric vehicle is planned | Medium (electrician intervention) |
| Solar Panels + Control | No obligation, but RE2020 encourages self-consumption | Notable reduction in bills | High (sizing, inverter, home automation) |
| Solar Storage Battery | No obligation | Increased autonomy in the evening | High (integration into the electrical panel) |
| Connected Thermostat | No direct obligation | Significant heating savings | Low to medium |
| Double Flow Ventilation | RE2020 (consumption thresholds) | Air quality and heat recovery | High (ducts, maintenance) |
| High-Performance Joinery | RE2020 (Bbio) | Thermal and acoustic comfort | Medium (installation in new builds) |
This table highlights a often overlooked point: regulatory constraints precede comfort choices. An unplanned charging circuit is much more expensive to retrofit than to anticipate.
To compare the ranges available on the French market, the equipment offered by Mister House covers several of these categories, from energy management to indoor comfort solutions.
Residential Solar: Control Only, Battery, or Combination
Competing content treats photovoltaics as a binary option: install panels or not. The market reality in 2026 is more nuanced. According to data from Enedis reported by the magazine Négoce in September 2026, residential installations incorporating a battery have significantly increased between late 2024 and 2025, while storage still represents only a fraction of the self-consumption market.
Three configurations stand out:
- Panels with total surplus resale: the simplest option, but the household remains dependent on the grid during peak hours.
- Panels with home automation control (solar router): the surplus feeds the hot water tank or the electric vehicle in real-time, without a battery. The cost remains moderate.
- Panels with storage battery: autonomy increases in the evening, but the initial investment is significantly higher and the battery’s lifespan conditions overall profitability.
The choice depends on the household’s consumption profile. A household that is absent during the day benefits more from a battery or a control system that shifts usage. In contrast, a household with remote work consumes directly from daytime production and can do without storage.
EV Charging Circuit and NF C 15-100 Standard: What the House Must Provide
Since the update of the NF C 15-100 standard, charging an electric vehicle requires a dedicated circuit, appropriate protection, and a suitable differential device. This constraint has a direct impact on the sizing of the electrical panel and the subscribed power with the supplier.
In a new house, integrating this circuit from the design phase involves pulling an additional cable and reserving a space in the panel. The additional cost is marginal compared to the overall construction budget. In contrast, retrofitting the installation after delivery often involves reopening walls, resizing the connection circuit breaker, and sometimes requesting a power increase from the network manager.
Power and Location: Two Parameters to Fix Early
The power of the charging station (single-phase or three-phase) depends on the vehicle’s capacity and the desired charging time. The house plan must account for the location of the communication box, the distance between the panel and the garage, and the corresponding cable section. Fixing these parameters before pouring the slab avoids costly retrofits.
RE2020 and Interior Equipment: Distinguishing Obligation from Option
RE2020, which came into effect for individual houses, sets thresholds for primary energy consumption and carbon emissions. It imposes performance levels on the building envelope (insulation, joinery, airtightness) and on heating and ventilation systems.
However, RE2020 does not make home automation mandatory. A connected thermostat, motorized roller shutters, or a centralized management system remain comfort choices. This distinction matters when deciding on the budget: regulatory items are non-negotiable, while home automation can be added gradually.
Double Flow Ventilation: An Often Underrated Item
To meet RE2020 thresholds, double flow ventilation becomes a relevant choice in highly insulated constructions. It recovers heat from the extracted air to preheat the incoming air. The thermal gain is real, but the system requires a clean duct network, regular filter maintenance, and sizing adapted to the volume of each room.
A well-thought-out plan anticipates duct passages from the design stage, avoiding compromises on ceiling height or creating unplanned false ceilings.
The final trade-off between equipment items rarely hinges on the comfort perceived on the day of moving in. It is the energy bill over five years and the capacity for installation evolution that differentiate the choices. A correctly sized electrical panel and a well-installed duct network provide the necessary flexibility to integrate what the budget does not allow today.
