Energy efficiency Energy efficiency projects used in:

Stand-alone house with photovoltaic energy

Description of the installation

• New-build main home in a remote area.
• It does not have an electricity connection available.
• The electricity company gives a quote of 80,000.00 € to install an electricity supply.

Solution

Stand-alone photovoltaic system with energy storage and a back-up generator.

Benefits

• Lower investment
• Quick installation (weeks)
• Lower energy costs, as most of the energy comes from the sun at zero cost.

Technical description of the photovoltaic system

• Rated power of the inverter: 6 kVA (single-phase)
• Installation autonomy: 2 days
• Photovoltaic power: 2.3 kWp
• Generator: It is used six hours a week on average. It works as a back-up when there is no solar energy or energy in the batteries.

Investment in the photovoltaic installation

• Approximate cost (turnkey): 25,000 € (not including the generator)
• Amortization period if only one generator is put in place: 3 years