solar pv

the technology, explained

A PV (or Photo Voltaic) system captures the sun's energy and converts it into electricity that you can use in your home, to charge an electric vehicle. . .  or store in batteries for later use.

A typical system consists of three primary components:  SOLAR PANELS to absorb and convert daylight into electricity, a solar INVERTER to convert the panels' output to Alternating Current (AC) and BATTERIES to store excess energy.



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Arrays will be designed, and specified in your FREE ENERGY REPORT, to give you the optimum kWh output per square meter. . .  blue skies not required!

The type of panels fitted will be dictated by;  the area available, the safe load bearing capability of your roof, the desired kWh output and, of course, your budget.

Panels are 1m wide, with lengths ranging from 1.6m (weighing 18kg) to 1.9m (weighing 21.6kg), and power outputs from 250w to 400w.


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Solar Photo Voltaic panels generate electricity in Direct Current (DC), which is required for battery storage (or EV vehicle charging), but most of your existing home appliances and lighting need electrical power supplied in Alternating Current (AC).

The job of an 'Inverter' is simply to convert the Direct Current coming directly from the panels, or from your batteries, into useable AC.

Inverters are rated according to their conversion capacity, measured in Kilowatt Hours. . .  so the greater your system's generating capability, the higher the rating of Inverter you will need.


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Any electrical power that your solar panels generate and not used immediately (or exported to the grid) can be stored in batteries. . .  to provide power after dark, when your panels are not producing.

Whilst not an essential part of a solar PV system, your FREE ENERGY REPORT will include details of the battery options that are most compatible with your proposed system's output. ONLY install Lithium ion (Li-ion) batteries for solar energy storage.  Unlike 'lead acid' batteries, Li-ion are effectively maintenance free and have a higher 'cycle rate' which means that they can be charged and discharged many more times without losing their storage capacity.


Installations are meticulously planned and can usually be completed in a single day, depending upon site access, the scaffolding required and work necessary to integrate the system. operate a non-invasive, clean site policy.  You won't even know the engineers are there until the time comes to locate the Inverter indoors. . .  and batteries if you've chosen to add storage!  Call our engineers for their advice.

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Whilst roof mounted panels are the most common, they are by no means the only option.  If you have outside space that is not subject to excessive shading, you may wish to consider a ground mounted array.

Although slightly more costly to construct initially, ground mounted panels can be more accurately aligned to optimise their efficiency, and are more easily accessible for cleaning.

Bonus content:  WHERE CAN SOLWR.WALES INSTALL? are happy to install anywhere in Pembrokeshire, West Carmarthenshire and South Ceredigion, including;  Broad Haven, Little Haven, Marloes, Dale, Goodwick, Pendine, Crymych, St David's, Cardigan, Pembroke, Pembroke Dock, Solva, Saundersfoot, Freshwater East, Lamphey, Tenby, Newgale, St Brides, St Ishmaels, Talbenny, Roach, Fishguard, Narberth, Burton, Hook, Llangwm, Letterston, Langharne, Porthgain, Whitland, Maenclochog, Newport, St Clears, Haverfordwest, Milford Haven, Manorbier, Simpson Cross, Neyland and Letterston.





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Solwr Wales
The Old School
SA76 7PU

07399 207 162