NRJ Bât Sàrl is a Geneva-based engineering office for building energy solutions. The company studies, sizes and coordinates renewable energy projects, including photovoltaics, heat pumps, storage systems, charging stations and building energy renovations.
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Photovoltaic Systems
Study, sizing and installation of photovoltaic systems for villas, condominium buildings, commercial buildings and industrial sites; with self-consumption, grid injection and possible pairing with storage or charging stations.
Heat Pumps
Technical assessment, sizing, installation and subsidy support for air-to-water, air-to-air and geothermal heat pumps, including replacement of oil, gas or electric heating systems.
Building Envelope Insulation
Thermal assessment, prioritisation and execution of insulation work on roofs, facades and windows, with coordination for later heat pump or solar solutions and subsidy handling.
Electric Vehicle Charging Stations
Study, sizing, installation and maintenance of charging infrastructure for single-family homes, condominium buildings, shared car parks and businesses, with load management and coupling to photovoltaics or storage.
Battery Storage Systems
Storage of solar surplus to increase self-consumption, with sizing based on the real consumption profile and possible pairing with photovoltaics or a charging station.
Solar Carports
Photovoltaic carports as an alternative when the roof is unusable, combining electricity production, vehicle shelter and optional charging infrastructure.
Solar Thermal Systems
Production of domestic hot water and heating support using solar heat, sized to hot-water and heating needs and compatible with existing systems.
Solar Pool Heating
Solar heating of indoor and outdoor pools to extend the swimming season, with sizing adapted to the pool and the existing system.
Industrial Solar Solutions
Feasibility studies, sizing and implementation of large solar projects for industrial, agricultural and public sites, including roofs, car parks and ground-mounted areas.
Energy Renovation Advisory and Project Coordination
Technical assessment, project coordination, execution planning, permits and subsidy management for energy renovations, with a single point of contact.
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