Solar-PV

Solar PV.
Generate your own electricity and save money on your bills.

Solar PV.

Energywise Ireland are one of Munster’s leading installers of solar PV panels. Most solar PV systems are
installed in a single day. Energywise Ireland completed its first Solar PV install in 2013, since then we have seen the demand for Solar PV increase every year. With the constant rise of electricity cost, now is the right time to install Solar PV Panels on your home.

 

We always aim to offer our customers the best products available on the market, for that reason we supply our customers with Longi Solar PV Panels. Longi Solar are the largest manufacturer of solar panels in the world with over 50% market share. 

The panels have salt mist resistant certification so can be used in coastal areas where sea air can be a problem for other panels. With higher wattage panels, this gives more flexibility to customers who are limited with roof space where they are getting more power per m2 of roof space. The Longi 410W panel is the absolute cutting edge of solar panel design ready for the 2023 year.

 

How do solar PV panels work?

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Sunlight is made up of photons, and when it hits the semi-conductor metal of the PV panel, electrons are released; these electrons form a direct current. People have been using PV for years, for example Sharp release their first pocket calculator in 1976 which has a number of PV cells. A typical solar PV systems consist of three main elements:
  • An array of solar PV modules
  • An inverter(s)
  • Cables, display and switchgear

The inverter is an electronic device that converts the DC electricity produced by the solar array into AC with the same voltage and frequency as the mains supply. The inverter also performs various safety functions, constantly monitoring the grid and switching off in the event of a fault or major fluctuation in mains supply. The output of the inverter goes directly into the building’s fuse box – feeding solar electricity into the building’s conventional electricity supply which means you will not have to buy so much electricity from your electricity supplier.

The appliances in the building will use the free electricity generated from your solar PV system and any surplus power will automatically be exported into the grid so that others can buy the “green” electricity you have generated Most solar PV systems are grid connected, which means that the electricity generated is fed directly into (and synchronised with) a building’s existing mains supply. On a sunny day, the power generated by the solar PV system reduces the amount of electricity that needs to be bought from the electricity supply company. On very sunny days, or at times when not many loads are turned on, the PV may generate more power than is needed in the building, and the surplus will be exported out into the grid. There are six main factors that will impact how much energy a Solar PV system will generate:

  • The efficiency of the panel.
  • The overall size of the PV array.
  • The latitude of the location.
  • Which direction the panels face.
  • The angle at which the panels are mounted.
  • The amount of shade that may cover the panels.

Longi Solar Panel

LONGi leads the solar PV industry to new heights by product innovations and LCOE optimizations with breakthrough monocrystalline technologies. LONGi is recognized as the world leading solar technology company with the highest market value.  Innovation and sustainable development are two of LONGi’s core values.

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Does Solar PV work in Ireland?

There is an opinion out there that Solar technology would not work in Ireland , this stems from people thinking that we don’t get enough sunlight in the summer, never mind the winter. This however is not true, photovoltaic cells work on sunlight as opposed to the heat from the sun. In fact, Ireland has the same annual Irradiation levels as many parts of central europe, ranging from 1200 kWhr/m2/yr in the south of the country to 1000 kWhr/m2/yr in the north of the country, a good average for the entire country is 1100 kWhr/m2/yr. If you consider our typical winters would not be as bad as many parts of central europe, our mild climate is ideal for solar installations, as we never get too hot or too cold and we have good light levels for a large part of the year.
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FAQ's

Solar PV panels produce electricity by converting sunlight into electricity. The amount of electricity that is produced is dependent on how sunny it is and how many solar panels are grouped together. Solar PV systems sizes are rated based on their maximum potential output under full sunny conditions and is rated in kilowatt peak (kWp). A 1 kWp solar PV system would produce about 800 units of electricity per year in Ireland.
When your heat pump needs most electricity, your PV panels are producing the least amount of electricity i.e. short winter days. The PV panels will contribute to your annual electricity demand but can’t be relied upon for instantaneous demands.

Solar panels, whether for hot water or for electricity, should be orientated in a Southerly direction between South East to South West. So if the back of the house faces towards the South, then this is the correct location. 
For solar PV Panels it is generally not a problem to install the panels on the garage provided that the orientation is correct.

Testimonials

For a few years we have been considering the addition of a PV solar system on the roof of our home in County Kerry. We spent many hours researching available systems, ESB tariffs, size options, costs and all other aspects. We spoke to a handful of good companies about the subject. In the end we made the decision to give EnergyWise Ireland the go ahead to install a system. They laid out the complete project proposal for us to consider. They paid particular attention to our concerns about the effect high wind might have on the solar panels; our home is situated near a tidal bay subject to high winds in the winter. They outlined their reasoning for recommending the solar panels and the inverter manufactures; all the warranties and advantages. They oversaw all the official documentation needs, and they advised us on the process with ESB. On the two days of the instillation they were clean and professional. In fact the wiring from the PV panels to the fuse panel and Inverter is the tidiest wiring in our home. Our system today cranks out power trouble free. In installing this system we have effectively slashed our electricity cost permanently. We look forward to twenty five plus years of greatly reduced ESB bills. I recommend EnergyWise Ireland even if you are just considering the option of PV solar panels on your home our business. They have the experience, expertise and resource to provide a professional first class service and an excellent finished job.
Eugene Ferris, Ardfert, Co.Kerry