Domestic photovoltaics

Home photovoltaic systems are a way to generate your own electricity using solar energy. They are an increasingly popular choice in Greece, thanks to the many benefits they offer:

  • Saving money.
  • Energy independence.
  • Subsidies: The government subsidizes the installation of home photovoltaic systems, which significantly reduces the initial cost.
  • Green energy.
How home photovoltaic systems work:

Photovoltaic panels convert solar energy into electricity. Photovoltaic panels convert solar energy into electricity that converts electricity into electricity for your home. When you produce more energy than you consume, you can sell it to the PPC grid through the net metering system.

Additional options:

  • You can install a battery-powered energy storage system to increase your self-consumption and make even more use of the energy produced.
  • If you are thinking of getting an electric car, you can charge it with the electricity generated by your photovoltaic panels.

To learn more about home photovoltaic systems you can contact our company TASIS Energy, a specialist company in the field of renewable energy

Domestic photovoltaic prices

Various factors affect the cost of a domestic photovoltaic system such as:

  • The size of the system: The power of the system is measured in kilowatts (kW) and is determined by the number and capacity of the photovoltaic panels to be installed.
  • The quality of components: choosing branded and reliable panels, inverters and batteries (if you choose an energy storage system) can increase costs, but ensures longevity and high performance.
  • Additional benefits: Installing an energy monitoring system or having a good performance guarantee can affect costs.


The government offers several subsidy programs for the installation of residential PV systems.


  • Before proceeding with the installation of a photovoltaic system, ask for quotes from various companies.
  • Compare the prices, but also the quality of materials and services offered.
  • Make sure that the installation company is licensed and has experience in the field.
  • Do not fail to take into account any subsidies that are available.
How many kw does a home with photovoltaic panels need

The number of kW that a home with photovoltaics needs depends on several factors:

  1. Energy consumption:
  • High consumption:
    • High energy consumption.
  • We need more kW.
  • Low consumption:
  • Smaller house with fewer appliances.
  • Less kW is enough.
  1. Home energy efficiency:
  • Good insulation:
  • Reduces energy losses.
  • Good insulation: good insulation reduces energy losses.
  • Poor insulation:
  • We have higher energy losses.
  • We need more kW.
  1. Area:
  • Sunny area:
  • Higher energy production.
  • Less kW is sufficient.
  • Cloudy area:
  • Lower energy production.
  • We need more kW.
  1. Objectives:
  • Autonomy:
  • Cover all needs.
  • We want more kW.
  • Reducing the bill:
  • Covering part of the needs.
  • Less kW is enough.


  • Small house: 3-5 kW
  • Typical house: 5-8 kW
  • Typical house: 8-10 kW
10kw photovoltaic prices

Various factors affect the cost of a 10kW photovoltaic system such as:

  1. Quality of components:
  • Panel: Branded panels offer higher efficiency and durability, increasing the cost.
  • Inverter: The power inverter affects the performance and reliability of the system.
  • Batteries (optional): Adding batteries for energy storage significantly increases costs.
  1. Installation company:
  • Experience: Choose a licensed and experienced company for quality installation and longevity.
  • Packages: Often there are complete packages with materials, installation and paperwork.
  • Warranties: Make sure there is a warranty of good workmanship for materials and installation.
  1. Additional factors:
  • Region: Different prices depending on location.
  • Slope and roof orientation: Optimal 30°-40° slope and south orientation for maximum energy production.
  • Shades: Trees or buildings that shade the roof reduce energy production.
  • Required work: Any roof modifications or electrical work increases costs.


  • Get offers from various companies.
  • Compare prices, quality of materials and services.
  • Take into account any subsidies.
  • Choose a reliable company with experience.

Rooftop photovoltaics are a system of generating electricity from the sun, which is installed on top of homes or businesses. Let’s take a detailed look at their advantages and disadvantages:

  • Saves money: significantly reduces electricity bills through self-consumption of the energy produced. Significantly reduces energy consumption.
  • Energy independence: reduces dependence on the mains electricity grid, increasing your energy independence.
  • Environmental benefits: It is a renewable energy source that helps reduce pollutants and fight climate change.
  • Subsidies: There are several subsidy programs that significantly reduce the cost of installing photovoltaic systems, such as the “Photovoltaic Roof” and the “Save-Autonomo”.
  • These include the “Home Energy Efficiency” and “Home Energy Efficiency” programs: A home with a PV system can have a higher sale or rental value.
  • A solar PV system that can be sold at a higher price may be worth more or less than a sale or purchase: Photovoltaic systems require minimal maintenance.
  • Initial installation costs: Although subsidies reduce costs, the initial investment can be high.
  • Roof space available: The surface area and orientation of your roof affect energy production.
  • Shading: Trees or buildings that shade the roof reduce energy production.
  • Low winter production: Energy production is lower in the winter months.
  • Panel replacement: photovoltaic panels have a lifespan of 25-30 years, but their efficiency decreases with time.
Do photovoltaics on the roof benefit?

Whether roof photovoltaics are beneficial depends on several factors, such as:

  1. Your individual needs:
  • Your personal needs: High energy consumption maximizes benefits.
  • Your financial situation: The initial investment may prove to be unprofitable for low-income earners.
  • Environmental awareness: Clean energy production offers moral satisfaction.
  1. Economic evidence:
  • Installation costs
  • Subsidies: Significantly reduce costs, up to 75% with a combination of programs.
  • Electricity prices: Rising electricity prices increase benefits.
  • Lifetime: Photovoltaics have a lifespan of 25-30 years.
  1. System performance:
  • Size: right power in relation to consumption and roof potential.
  • Quality: Branded panels and inverters for maximum energy production.
  • Quality: high quality, high performance, high quality, high quality, high quality: Optimal position for maximum solar radiation.
  • Shading: Minimize shadows from trees or buildings.

In general, photovoltaics on the roof are advantageous in the long term, offering:

  • Saving money.
  • Energy independence.
  • Environmental protection: reducing pollutants and contributing to green energy.
Are rooftop photovoltaics suitable for you?

Installing photovoltaics is advantageous in the long term, especially if:

  • You have a house with a suitable roof (sufficient space, south-facing, minimal shading).
  • You consume enough energy.
  • You plan to stay in the house for several years.
  • You have the initial investment or can take advantage of available subsidies.

Next steps:

  • Feasibility study: Consult an expert to assess your needs and the suitability of your roof.
  • Compare offers: Request quotes from various licensed PV installation companies.
  • Find out about subsidies: Find out about available subsidy programs and eligibility requirements.
Subsidy photovoltaics on roof

“Photovoltaics on Roof” programme:

  • Subsidy: up to 60% of the cost
  • Maximum system size: 10 kW
  • Beneficiaries: households, farmers
  • Criteria: income, energy
  • Application submission: online, via the platform
  • Deadline: 30 June 2024 or until available funds are exhausted

In addition:

  • 10% bonus for people with disabilities, single-parent, three-parent and large families.
  • Possibility of installing an energy storage system (batteries) with a high subsidy (up to 100%).
Supporting documents for photovoltaics on roofs

Necessary documents for photovoltaics on roofs:

Α. For the application to the “Photovoltaics on Roof” program:

  • For “Photovoltaic Photovoltaics”: “Photovoltaic Photovoltaics for Solar Photovoltaics” – Identity card or Passport
  • ID card or passport or ID card or ID card or passport
  • Property ownership title (e.g. contract)
  • Energy Performance Certificate (EPC)
  • Topographical diagram
  • Roof plan
  • Declaration of non-existence of photovoltaic system
  • Optional:
  • Authorisation to a third party
  • Proxy information

Β. For installation:

  • Installation permit from the Municipality
  • Approval by the Town Planning Authority
  • Electrical plan
  • Static study
  • Insurance policy
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