Solar Panel System Types

When deciding on which system is best for your property, your main consideration will be the choice of inverter.

The inverter converts the solar energy (DC current) into the AC electricity you use in your plug sockets and your choice of inverter largely effects how much electricity you can produce.

Basic System

 

String Inverter

With this type of system, all of the panels are connected in series to a ‘string inverter’. This effectively treats all of the panels as one giant panel. This system type is the lowest cost, however, the interconnectivity of the panels is its limitation. Like driving in traffic, you can only drive as fast as the slowest moving car – If one of the panels’ output is reduced due to shading, the whole system’s output is equally limited. 

 

 

Individually Optimised Panels

Here you have two options, power optimisers or microinverters. We have set up a test environment at our showroom to work out which technology is better, and there is not much difference between the two in terms of performance. Why not pop in and see for yourself?

Both of these technologies offer the following advantages over string inverters:

• An average of 15% greater output (and therefore, your earnings).
• Online monitoring, allowing you to check your system performance online and set up email alerts.
• Greater reliability
• Longer warranties

 

Micro-Inverters

Micro-Inverters convert the high voltage DC current from your panels, to your mains (AC) electricity, underneath each panel, so there is no need for a central inverter.

• No central inverter in your garage/ loft
• No high voltage DC current entering your property
• In our experience, through 600+ installs, Enphase is the most reliable inverter option.

Power Optimisers

Power Optimisers are located under each panel, allowing each one to work independently, whilst still converting the DC current to AC using a central inverter.

Power Optimisers and Micro-Inverters come at a higher initial price, although they provide better value in the long run through increased efficiency,  allowing you to produce more electricity. Whilst you are paid for every unit that you generate it is in your best interests to maximise electricity production. They also offer greater reliability and longevity. 

For an estimate detailing exactly how much extra you can make with individually optimised panels vs a string inverter, book a free energy survey today.