Frequently ask questions

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Generally speaking, the panels should be on a south facing roof, though you will still get good results if they are anywhere between south-west and south-east.

The panels also need to be mounted at the angle of latitude. In Ireland, this is about 52 degrees on average, though the optimum angle is shallower in summer and steeper in winter.

The difference is quite small, so the quickest and cheapest solution for roof-mounted panels is to follow the slope of the roof.

Yes. Our PV systems are designed specifically for Irish regulatory and environmental conditions, including the rigorous standards of ESB Networks.

We have experience in working with ESB Networks to connect solar PV electricity generation systems to the national grid. We worked with ESB Networks to install the country’s first ever small import/export meter in the Green Building in Dublin’s Temple Bar.

Our systems have ESB Networks approved inverter controllers – the equipment that enables surplus electricity from your system to be diverted seamlessly to the grid.

Yes, you can sell your excess solar energy back to the grid in Ireland. Since July 2022, Irish homeowners have been eligible to sell their surplus solar electricity to the grid. Prices for exported electricity are negotiated between electricity suppliers and consumers. So, it’s important to shop around for the highest value. The amount you can earn by selling your excess solar energy depends on your supplier’s export unit rate and how much you export.

Market research in the UK has shown that properties with a good energy rating and using renewable energy sources achieve better market value. With the recent introduction of the Building Energy Rating Scheme by the Irish government, this trend is without a doubt going to be reinforced. With current trends in the Irish property market the installation of renewable energy and having a good BER rating may be the deciding factor between one house and the next.

The SEAI have stated that introduction of micro-generation has the single greatest effect on the energy rating; it is also considered one of the only ways to get up to an A1-rating. The reason it has such a great effect is because when micro-generation is introduced into the building envelope it reduces the Primary Energy rating of the building. The Primary Energy is the amount of energy that the energy supplier, in this case the ESB, has to produce in order to supply the dwelling.

Grid electricity has a very high energy and greenhouse gases content due to the inefficiency of centralized power plant using fossil fuels like peat, coal, oil, etc. and high distribution losses. So for every 1 kW of electricity used in your home 2.7 kW of electricity needs to be produced by the ESB, this 2.7 kW is passed directly onto your homes BER.
Conversely the introduction of 1 kWp of PV has a minus 2700 on the DEAP result, which makes up the BER.

By comparison, photovoltaic energy is produced on site using sunlight, a free clean and inexhaustible source of power. Investing in PV is one of the best ways to reduce the carbon footprint of your property.

As mentioned above, PV has a hugely positive impact on the Building Energy Ratings of a house. The primary energy rating of the house is greatly affected.

Consider the new regulations for Fingal County Council where the maximum allowable energy requirement per meter squared is 60 kWh/m2/yr. on a dwelling of 120 m2. So the building energy rating for this dwelling is A3. 

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