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Pentre Solar

Pentre Solar is a hamlet of 6 solar homes to be let to those on the social housing register, released in 2017.

We are looking to replicate this model throughout Wales. If you would like to be kept informed of our developments, please sign up to our mailing list. We will not pass your email address to any other organisation, and will email you only when we have something to say about our developments.

The Tŷ Solar® Home at Rhosygilwen

A gallery of images from the original home

The Solar Farm


Western Solar’s Solar farm was the first large scale PV plant in Wales, commissioned in 2011. This creates a large carbon neutral region in North Pembrokeshire and Ceredigion.

Photovoltaic panels produced by MiaSole, the pioneering manufacturers of thin film PV panels, can generate up to 1200KWs of electricity, enough to power 500 homes. Almost 12,000 solar panels were imported from the United States solar panel company MiaSolé and are placed in 12 lines in a six-acre field.  The Park was the first site in the UK to have installed the MiaSolé CIGS (copper indium gallium selenide) panels, one of the highest efficiency thin-film photovoltaic solar panels in the world.

The development provides power sufficient for 500 homes. The 12,000 solar panels generates1.2 GW annually, saving 1100 tonnes of carbon.

Western Solar thank the neighbouring communities of Ty Rhos and Cilgerran for their enthusiastic support of this new facility.

About MiaSolé

MiaSolé is a pioneer and leading developer of copper indium gallium selenide (CIGS) thin-film photovoltaic solar panels, one of the lowest-cost, highest efficiency solar panels in the world. MiaSolé’s primary mission is to advance the extraordinary potential for harnessing solar power as a competitive, sustainable energy source. MiaSolé operates its manufacturing facilities in California.

The solar panels from MiaSolé have been arranged to allow rain water to fall between the arrays. This only inhibits the growth of grass by 15% — allowing the land to stay in uninterrupted agricultural use

Do Lectures 2012: How to build a solar farm

Social Investment

Nepal’s electricity grid creaks under the strain of providing power to its cities and towns so when it comes to villages they have very little chance of connecting up.

Western Solar Ltd has sponsored a 1 KWh PV rooftop system at a village school in Dadhar, about 4 hours drive from Kathmandu. The system will generate 1800kw pa which is about twice the production required for the lights, fans, computers and other ancillary equipment. Power is stored in 4x150ampH 12v batteries.


The main customer of Western Solar is Green Energy UK, which distributes the power produced. Available on their Deep Green tariff – power produced with zero CO2 emissions.

Using the power of falling water, the sun, the wind, and organic waste material, Green Energy UK provide energy that is 100% renewable for the same price as the standard tariff in your region. Green Energy UK offer two tariffs: ‘Deep Green’ – the tariff under which Western Solar’s own energy generation is offered. And Pale Green, a low carbon tariff whereby the carbon emissions per kWh of electricity are less than half the national average, and priced to compete with mainstream electricity suppliers.

You can find out more about Green Energy UK on their website. We also encourage all those who wish to use clean electricity — as produced here at Rhosygilwen — to buy their energy from Green Energy UK.