Solar Panels (Solar PV)
Solar Panels (Solar PV) system will take power from the Solar Panels “first” naturally and will only draw power from the grid if there is insufficient power available from the Solar Panels. The flow of electricity in a system is determined by the electrical potential at all points in the system. The simplest analogy is to think of the flow of electricity in a network of conductors connected to the grid as being like the flow of water through a network of pipes connected to a water main. If there is more pressure in the network of pipes than in the water main, water will flow out into the water main – and vice-versa.
Solar Panels (Solar PV) modules have a manufacturer’s warranty of 30 years and a working lifetime of 40 years and beyond. As the photovoltaic effect is a naturally occurring phenomenon, there is nothing to say that the panels will not continue to create electricity for as long as they are in sunlight. A Solar Panel (Solar PV) system that is designed, installed, and maintained well will operate very efficiently for at least 25 years. The best way to ensure and extend the life and effectiveness of your PV system is to purchase quality components from a reputable company who will guarantee that your system is correctly installed and commissioned.
SEAI are offering solar panel grants for the install of solar panels on your home. There is currently a solar panel grant of €1,800 – €3,000 for solar panel (Solar PV) and battery installs. In order to qualify for the SEAI solar panel grant you must meet the following criteria.
Your house must be built and occupied prior to 2011 and you must have a BER Rating of C3 or higher after installation and finally not of availed of a grant for solar PV in the past. We estimate that the installation of solar PV in your home will increase your BER rating by at 1 rating.
No, you will still have an electricity bill with Solar Panels (Solar PV). We aim to design a bespoke system for you that will reduce your bills by up to 50% – there is a payback period on the system of approx. 8 years – however, with electricity prices on the rise and the possibility of selling back the grid in 2021 we expect the pay back period to reduce.
Here at NRG Panel we use top quality Solar Panels (Solar PV) sourced directly from Europe with some of the highest warranties and efficiency levels on the market.
Solar panel prices Ireland vary. It is really important that when you are comparing quotations for Solar Panels you compare like with like on all components of the system, there are cheaper models on the market however, these are not of the same quality or efficiency. You also need to consider the company you are dealing with, is this an established company with quality customer service that will be there in 5-10 years should you have any issues with your Solar Panels down the line.
It is very hard to give a direct quote as it all depends on the type of system the consultant designs for you, but prices start from around €5,000 depending on what you go for. There are also buy now pay later options available so you can spread the cost of your system across a couple of years
The Solar Panel (Solar PV) system designed for you is dependent on a number of factors including your electricity usage, lifestyle and the details of your home and roof, this is why it is important to have a consultation to ensure we are offering you a bespoke system specifically designed for your needs.
Air to Water Heat Pump
Air passes through the heat exchanger outside called the evaporator and the refrigerant gas absorbs heat from the outside air and evaporates. The vapour passes into the compressor and by compression increases its temperature and pressure. Hot vapour is condensed in the 2nd heat exchanger, the heat is being passed by water onto heating or domestic hot water system. The liquid refrigerant passes back through the expansion valve, reducing its pressure ready to start the cycle again.
A heat pump’s efficiency is often referred to as a “Coefficient of Performance” (COP) and all heat pump manufacturers are giving this value for nominal conditions of 7 °C outdoor temperature and 35 °C flow temperature.
The Coefficient of Performance (or COP) describes the ratio of electrical power used to heating power produced under fixed input and output conditions by the heat pump unit only. A COP is used for examining the performance of a heat pump unit at ideal test conditions, usually in a laboratory.
COP of 4 means for every 1kW of electrical energy used, 4kW of useful energy is produced – a net 3kW of useful energy will be ‘free’ generated by the heat pump.
Air to water heat pump – can be used in conjunction with underfloor heating and low temperature radiators, aluminium or steel panel or fan coils which require flow temperatures up to 55 °C
At an early stage of the project the designer of the system has to take in to account the type of heating system that will be installed working closely with the BER assessor. The reason is to make sure that the air to water heat pump can comfortably meet the heating load of the house and provides enough renewables thermal contribution to meet Part L requirements; heat loss calculations should be done in accordance with current standards and regulations. In most new dwellings the DHW production is going to be done off-peak heating demand, therefore we can prioritize this during the night and mid-day when the heating demand is very low. As most air to water heat pumps are equipped with an electrical back-up heater, this can be conditioned to be used for heating, only if external temperatures fall below a specified point. This point is called equilibrium temperature and usually is set at -3 °C but in most cases this is not used for heating at all.
Manufacturers with tradition in the heat pump industry have their air to water heat pumps designed specially to suit the European climate working even at outdoor temperatures of -25 °C. One key thing to remember is that the “heart and blood” of any heat pump, whether it’s Monobloc or Split is it’s “compressor and refrigerant”. Therefore make sure before buying into any systems that the manufacturer of the heat pump has also got experience, knowledge and tradition in this field and the product complies with the energy labelling & eco design directives.
SEAI are offering a grant incentive of €3,500 for air to water heat pump installations. There is also an SEAI incentive of €200 for a technical assessment and €50 for a BER assessment.
In order to qualify for the air to water heat pump grant your home must be built and occupied prior to 2011, have a BER rating of C1 or higher prior to install and have a heat loss indicator of 2 W/K/m2or lower.
Finally in order to be eligible, you must not have been in receipt of the air to water heat pump grant in the past.
Generally, air to water heat pumps can cost between €10,000-€15,000 but to determine an exact cost, we would have to conduct a technical assessment which is a detailed heat loss survey of your home.
This step is also required by the SEAI who is offering a grant for air to water heat pumps of €3500.
Installation is usually done in 1 day and the average daily running cost is between €1-€2.