photovoltic panels

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

Solar PV.

Energywise are one of Munster’s leading installers of solar PV panels also know as solar photovoltaics. Our solar PV systems are installed in 1 day complete with a 10 year warranty for peace of mind. Energywise are a distributor for Sharp solar PV panels. Sharp was founded nearly a century ago in Japan and has been at the forefront of solar technology for the past fifty years. The vision of their founder, Tokuji Hayakawa was that “Sharp makes products that others want to imitate.” With so much experience behind them, it’s no wonder Sharp produces such high quality solar panels.

Sharp’s solar PV panels are built to withstand the most rigorous operating conditions while still offering high power output. Their proprietary innovation in surface texturing of panels increases their light absorption yielding high efficiency ratings. Sharp solar PV panels offer a 10 year product warranty at 90% output and 25 year power output warranty at 80% and are backed by Sharp’s long standing reputation. Their panels offer the highest standards in safety, durability, wind loading and ease of assembly. The solar cells and modules manufactured by Sharp deliver a total output of over 4 GWp, making Sharp one of the world’s leading manufacturers of premium quality modules.

How do solar PV panels work?

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:

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:

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.

Main Features and benefits of Sharp Solar PV

Solid company with reliable quality: A solar energy system is a long-term investment. In order to be satisfied with your decision for a long time, you should be able to rely on the quality. Sharp’s 100 year history and more than 55 years of experience in solar technology give you confidence for your investment.

Performance: Pmax is the power of each solar module. It is stated in Wp (watt peak) and refers to the output from the solar module electrical peak power under standard test conditions. Sharp offers different modules of 250 Wp to 300 Wp.

Efficiency: The efficiency is the ratio of input (sun energy) to output (solar power). Normally, the module efficiency is compared. However, some manufacturers also specify the cell efficiency. For this reason, you should make sure to compare the correct values to each other. A higher performance and greater efficiency are especially recommended when space on the roof is limited. Sharp solar modules achieve a very high efficiency of up to 19.8%.

Guarantees: Solar manufacturers specify two different guarantees: the products guarantee and the performance guarantee. The output of a solar module normally decreases during runtime. The maximum reduction is regulated by the performance guarantee. Sharp offers a 10 year warranty on the product and a 25 year linear performance warranty. Some manufacturers specify a staggered performance warranty. With Sharp’s linear performance guarantee, you have good planning security for your solar system.

Financial stability: Bloomberg New Energy Finance (BNEF) has established a rating system for the classification of solar module manufacturers. Companies for which the bankability is evaluated as being positive are classified as first-class manufacturers. Sharp Electronics was included in the list of Tier 1 solar companies in May 2015 and thus stands for financial stability. This in turn is an important indication of the warranty compliance.

solar pv installation

Contact Energywise Ireland for free advice and a free no-obligation quotation. We would love to hear from you and answer any questions that you may have.

Call us on: 021-4308185 Book a showroom consultation

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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 but if it faces towards the North then this would be as efficient.
For solar PV Panels it is generally not a problem to install the panels on the garage provided that the orientation is correct.


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