what's new index | site map | products |  special offer | information | contact | terms & conditions


   Solar Energy Ireland innovative energy systems
..setting new standards in modern heating...and it doesn't cost the earth....

Information On:

(PV) Photovoltaic Systems in Ireland (Solar Electric) 


PV stand alone systems in working order

stand_alone_pv_system        stand_alone_pv_panel.

There are 2 types of photovoltaic applications: those connected to an existing power grid (Grid-connection in Ireland the ESB isn't set up for this type of system, high time to make it available in Ireland), and those independent from any power grid (Stand alone most common in Ireland). 


PV only makes sense when electricity is consumed efficiently. Energy efficiency is the key goal before considering any PV system, since it will have a direct impact upon the type and quantity of PV equipment needed.


Stand alone systems are totally self-sufficient with no connection to main grid system. They generate electricity during daylight hours, and store excess for night time use. Provide for all electric needs. Require large battery bank for night and cloudy days. Consider a backup system, generator / inverter in case of system failure or spell of bad weather.

What will it do?

Stand alone systems provide power whenever the sun is shining, eliminating dependency on the ESB utility, provided electricity, and reducing ESB bills. Provide power for a variety of applications other than residential use. Can be used for pumping water from a well, outdoor lighting, etc. Care must be taken to correctly size and maintain the system. Amount of solar power available depends on array and inverter. back-up power and time depend on artery and inverter choices.

Stand alone components

PV panels The part of the system that converts sunlight to electricity
Stand alone inverter The part of the system that changes the quality of the electricity the panel produces (DC Direct Current) to the quality required by the building equipment. (220 volt alternating current)
Batteries The electricity storage system
Battery cut off switch Safety item to isolate the battery bank
Inverter safety switch So the utility can shut system off in emergencies or work

Applications for PV systems: 

Water pumping, Pool pumps, Ventilation, Irrigation control, lighting, DC powered appliances and many more.

How to choose a photovoltaic (PV) system:

Choosing a system:

System choice is based on what do you need it to do? How much power do you want? What is the daily & annual profile of power use and projected need? What happens if the power system fails?

First steps:

Consider an energy audit, insulation, effective windows, blinds, controlled ventilation, heat-recovery, roof exposure and impacts and last but not least efficient appliances. You should also consider time of use night rate power, site conditions, architecture and construction. Use passive solar techniques to mitigate negative conditions and take advantage of site resources to reduce power requirements.

All information 2003, Solar Energy Ireland.
Reproduction in whole or in part of any content on or distributed via this site is permitted only with the written permission 
 of Solar Energy Ireland The content of this site is for general guidance only and is offered by Solar Energy Ireland as material to prospective customers, students who choose to access this web site. While every effort has been taken to ensure the accuracy of the contents of this site, no responsibility for loss or damage occasioned to any person acting or refraining from action as a result of any statement in it can be accepted by the authors or publishers.

what's new index | site map | products |  special offer | information | contact | terms & conditions

Solar Energy Ireland 2003