Solar explained
How solar works.
Panels generate electricity in daylight. An inverter makes it usable in your home. What happens next depends on when you need it, whether you have storage and your grid connection.
From the roof to the home
One source. Different uses.
This is a simplified energy flow, not an electrical wiring diagram.
- 01
Solar panels
Daylight produces direct current electricity. Weather, shade and the roof layout affect generation.
- 02
Inverter
The inverter converts electricity for use by appliances. The system design determines how a battery connects.
Generated electricity can then be:
Used now
Electricity used at home can reduce what you buy from the grid at that time.
Stored for later
An optional battery can shift some electricity to later use. It adds cost and some energy is lost in storage.
Exported
Surplus can go to the grid. Payment depends on eligibility, metering and your supplier’s terms.
When solar and any stored energy cannot meet demand, the home still needs another source, usually the grid. Solar panels alone do not establish whether a home has power during an outage.
Start with your own question.
For the underlying principles, read SEAI’s solar electricity guidance.
Put the idea in context.
Explore a home guide estimate without leaving contact details. If you are ready to discuss your roof, request a free survey with no obligation.