Solar Installers Vienna

Frequently Asked Questions About Solar Installers

How do I choose the right solar panel system size for my needs?

Choosing the right solar panel system size depends on your energy consumption, budget, and available roof space. A qualified solar installer will:

• Analyze your energy bills
• Assess your roof's suitability
• Calculate your potential solar energy generation
• Recommend a system size that meets your needs and goals.

They will also consider factors like future energy needs (e.g., if you plan to purchase an electric vehicle) and the potential for battery storage.

How long does it take to install solar panels?

The installation timeframe can vary, but a typical residential solar panel installation takes 1-3 days. Larger commercial installations can take longer. The actual time depends on factors such as:

• System size
• Roof complexity
• Weather conditions
• Permitting and inspections
• Installer's schedule

Your installer will be able to provide you with a more precise timeline for your specific project.

What are the different types of solar panels?

The most common types of solar panels are:

• Monocrystalline: Made from a single silicon crystal, known for high efficiency (typically 18-22%) and sleek black appearance.
• Polycrystalline: Made from multiple silicon crystals, slightly less efficient (15-17%) but often more affordable than monocrystalline.
• Thin-film: Made from thin layers of photovoltaic material, lower efficiency (8-12%) but can be flexible and lightweight.

The best type of panel for your project will depend on your budget, roof space, and desired energy output.

What is net metering, and how does it work?

Net metering is a billing mechanism that allows homeowners and businesses with solar panels to sell excess electricity generated by their system back to the utility grid. When your solar panels produce more electricity than you consume, the excess is sent to the grid, and your electric meter runs backward. You receive credits for this excess energy, which can offset your electricity bill. Net metering policies vary by location, but they generally make going solar more financially attractive by allowing you to earn credits for the electricity your system generates.