Residential Solar Panel

System Sizes 

There are different factors that must be considered before the size of a residential Solar panel System can be determined. The physical size of the house, number of people living in it, star rating of the appliances, number of appliances, usage habits, spa, air conditioning, heating system and many other factors.

An electricity bill from winter and summer needs to be analysed and the number of units consumed during a period needs to be analysed. Other factors like weather and seasons are also a significant factor in the decision making process. We highly recommend making an appointment to meet with a consultant before deciding which residential solar panel system should be installed.

Below are some sizes of systems and what scenario the individual systems match with . These figures and values are only approximations and may or may not be true for an individual household.

2kW System
Estimated annual electricity bill savings
€150 – €250
Suggested for 2 – 3 people

3kW System
Estimated annual electricity bill savings
€250 – €350
Suggested for 3 – 4 people

4kW System
Estimated annual electricity bill savings
€350 – €500
Suggested for 4 – 5 people

System Types

The major advantage of a residential solar panel is that it gives you the ability to produce your own power consistently when there is daylight. Solar does not require direct sunlight. The solar power produced during this time is a lot more than the amount of power your home would use in this entire duration.

There are 3 types of solar power systems;

On – Grid Systems

Off – Grid Systems

Hybrid System

As the name suggests, this power system is not connected in any way to the electricity grid. This system uses batteries instead that help balance out any shortfall and excesses in production and demand.

 To ensure that the users do not suffer any inconvenience when the solar panels are unable to produce power and the batteries are discharged, there is an electric generator that can be added, as part of the overall system. This generator would serve as the power source during periods of short or irregular power production and or excessive demand on the power produced.

The main difference between the hybrid residential solar system and others is that it has both battery backup and connection to the grid. This system is high on dependability since there is a constant electricity supply to the home. The ability to store the solar electricity in batteries for use at any time, without the need to draw on the electricity generated by the grid greatly reduces electricity costs for the home.

Three easy steps explain how this system works:

Step-1: It works as both the off-grid and on-grid systems – during the day when the sun is shining brightly, the panels convert the rays to electricity and any excess will be stored in the batteries, much like the off-grid systems. However, if even after storing in batteries and using electricity in your home, there is still excess power, the system then sends this excess back to the grid according to the rate of the chosen feed in tariff, similar to the on-grid system.

Step-2: Since the batteries are continually charged during the day, they are able to store enough energy. During times of outages and little or no sunshine, the home can draw its power from these batteries. If however, these adverse situations last for too long, the batteries can be recharged from the grid and your home will only use as much power from the grid as is required to recharge the batteries.

Step-3: Till the batteries are recharged or the grid begins to function as usual, your home will still have an uninterrupted power supply since it will draw power from the grid. This keeps the cost of power down.

Please give us a call on the number provided or fill in the enquiry form and a member of our team will be in touch.