Skip to content

Gwynedd CC

Solar and Electrical Contractors in Tywyn

Outside the Eryri National Park boundary -- standard permitted development applies at 970 kWh/kWp without the ENPA pre-application layer

Postcodes
LL36
Local authority
Gwynedd CC
Drive from HQ
88 mi · 120 min
Solar yield
970 kWh/kWp
LL36 120 min from our Swansea base 970 kWh/kWp solar yield Commercial energy intensity: Medium

Serving Tywyn

Tywyn is a small coastal town on the southern Meirionnydd coast in Gwynedd, population approximately 3,200, sitting on the flat coastal plain between the Cardigan Bay beach and the Dysynni valley. At 970 kWh/kWp yield, Tywyn matches Harlech as the highest-generating location in FLD's Gwynedd coverage, benefiting from unobstructed south-west Atlantic exposure across Cardigan Bay.

Unlike Harlech and Barmouth, Tywyn is not entirely within the Eryri National Park. The Park boundary runs approximately a mile inland from the town, and the coastal strip where Tywyn itself sits is outside the Park boundary. This distinction has a significant practical consequence for solar permitting: standard Welsh permitted development rules apply to Tywyn town properties without the additional ENPA pre-application layer that applies at Harlech and Barmouth.

The Talyllyn Railway terminus is Tywyn Wharf station -- the Talyllyn was the world's first preserved railway, restored by volunteers in 1951 after the death of its last private owner. The railway runs 7.25 miles inland to Nant Gwernol and is a major Gwynedd heritage tourism attraction. The railway estate carries multiple buildings at Tywyn Wharf and at intermediate stations that could represent a heritage-sector commercial solar opportunity assessed through the Talyllyn's own estate management.

The wider economy combines coastal tourism (a long sandy beach, surf school, water sports), the Talyllyn Railway visitor operation, and service provision for the surrounding agricultural community. Several caravan and holiday parks north and south of the town on the Cardigan Bay shore add to the hospitality commercial base.

Tywyn's housing mix is more varied than the hillside resort towns of Barmouth and Harlech. The town centre carries Victorian terraces and inter-war semis. The newer residential estate development to the east provides modern cavity-wall stock with standard roof orientations. The coastal fringe has larger detacheds and bungalows, many used as holiday accommodation.

At 970 kWh/kWp, a 6 kWp domestic system on a south-facing Tywyn semi-detached generates 5,820 kWh annually. With battery storage and time-of-use tariff, annual saving reaches approximately £1,650. For a holiday caravan park on the coastal fringe, a 100 kWp installation on shower blocks and amenity buildings generates 97,000 kWh annually -- self-consumption above 80% in the June to August peak, with a payback of approximately 3.5 years.

FLD reaches Tywyn in approximately 120 minutes via the A487 and A493. Coverage combines with Machynlleth and Barmouth on a southern Cambrian Coast circuit.

Commercial solar estimate — Tywyn

100 kWp reference system at 970 kWh/kWp

Modelled at 27p/kWh blended import, 15p/kWh SEG export, 65% self-consumption for medium energy intensity site.

97,000
kWh/yr
Annual generation
£22,116
per year
Annual saving
3.8
years
Simple payback
2.9
years (AIA)
Post-tax payback
Indicative only. Based on PVGIS irradiance data for Tywyn. Actual figures depend on roof orientation, shading and tariff. Request a detailed survey.
Domestic solar

Housing stock in Tywyn

Victorian town-centre terraces, inter-war semis, modern eastern estates, coastal bungalows and holiday lets

A typical 4 kWp domestic install here generates 3,880 kWh/yr. With 40% self-consumption at 30p/kWh and 60% SEG export at 15p/kWh, first-year saving is approximately £815.

970
kWh/kWp/yr
PVGIS irradiance

Local landmarks and context

  • Talyllyn Railway (world's first preserved railway, 1951)
  • Tywyn beach and Cardigan Bay
  • Dysynni valley
  • Bird Rock (Craig yr Aderyn)

Major employers we work with

  • Talyllyn Railway
  • Holiday and caravan park operators
  • Gwynedd CC local services

Recent local developments

  • Talyllyn Railway restoration programme
  • Tywyn beach accessibility works
  • Coastal holiday-park expansion
From the blog

Guides for Tywyn

Solar PV in Tywyn (LL36): Gwynedd coastal holiday-let and light commercial

Tywyn LL36 solar: coastal Gwynedd yields, Talyllyn Railway context, and practical planning and grid notes for holiday lets and small businesses.

4 min
Read
FAQ

FAQs for Tywyn

It depends on your consumption pattern. If you are out during the day and consume most electricity in the evening and overnight, a battery pays back the additional cost in 8 to 12 years alongside a 25-year solar asset -- worthwhile but not the priority. If you have an EV to charge or high evening demand, the payback shortens significantly. With a time-of-use tariff like Octopus Agile, a battery can also perform overnight cheap-rate charging arbitrage independent of solar. FLD models both scenarios and does not default to recommending a battery when it does not improve the economics.
Most rooftop non-domestic solar is permitted development under the Welsh General Permitted Development Order amendments, subject to limits such as 20 cm protrusion on pitched roofs and 1 m on flat roofs, and with restrictions for listed buildings and conservation areas. Ground-mount beyond those PD limits needs a full planning application. Systems over 10 MW are a Development of National Significance determined by Welsh Ministers.
Yes, for domestic systems. MCS certification of the installation is required to claim SEG payments with any UK supplier. We are MCS-certified and handle the paperwork as part of the install.
At 30p/kWh grid electricity, a 100 kWp system generating 95,000 kWh/yr with 70% self-consumption delivers around £24,000 of year-one benefit against c. £85,000 capex, a 3.5-year simple payback. Under Annual Investment Allowance first-year 100% relief, post-tax payback is closer to 2.6 years. South Wales yields 940 to 985 kWh/kWp/year depending on postcode, comfortably enough for commercial solar to be cashflow positive from month one with a PPA.

Ready for a fixed-price quotation?

Speak to Paul directly. Most quotes turn around within five working days of a site survey.

Trusted by NHS care providers, HMCTS and private developers across South Wales.