How much does a warehouse roof in Llandrindod Wells generate?

The model gives 825 kWh for every kWp installed here, so 500 kWp comes out at about 413,000 kWh a year before any shading losses. You need roughly 1,485 sqm of clear roof to fit it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Does the grid around Llandrindod Wells have capacity?

National Grid Electricity Distribution is the distribution network operator for Powys. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. We submit it as part of the design.

Solar panels for warehouses in Llandrindod Wells

Sheds around Llandrindod Wells tend to have more roof than the business has any other use for. We start with the covering and the structure, because a roof with five years left in it changes the answer entirely.

825 kWh per kWp a year at this latitude, so a 500 kWp array models at about 413,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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Drawing Llandrindod Wells unit

Roof 96 x 62 m

Array 500 kWp

Yield 413,000 kWh/yr

Scale 1:500 / Rev A / Powys

Illustrative layout for a unit of this size. Your own figures come from the roof survey.

Llandrindod Wells / Powys

Aerial view of an industrial estate where some warehouse roofs carry solar arrays and others are bare steel — Industrial stock of the kind we survey across Powys.

Distribution centre solar across Powys

What a roof in Llandrindod Wells actually generates

Modelled irradiation at this latitude is 1053 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 825 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is about 7 percent below the mean across the towns we cover, so the case here leans harder on how much you use on site rather than on raw generation.

FIG. 1 What a Llandrindod Wells roof makes, month by month

May produces 7.3 times what Dec does on the same roof. A 500 kWp array here models at about 413,000 kWh across the year, but it arrives unevenly, which is why we size against your summer daytime load and then look at whether storage is worth adding for the shoulder months.

Monthly figures as a table

Month	kWh per kWp	500 kWp array
Jan	19	9,500
Feb	35	17,500
Mar	68	34,000
Apr	100	50,000
May	116	58,000
Jun	115	57,500
Jul	114	57,000
Aug	96	48,000
Sep	75	37,500
Oct	45	22,500
Nov	26	13,000
Dec	16	8,000

Source: EU PVGIS v5.2

FIG. 2 Llandrindod Wells against the rest of Powys

Hay on Wye838
Welshpool831
Builth Wells830
Brecon828
Llandrindod Wells825
Newtown820

Llandrindod Wells ranks 5 of 6 towns we cover in Powys on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 820 to 838, a spread of 18 kWh per kWp. Within Powys that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.

Bars are zero based, so length is proportional to the figure. Where a county is flat, that is the finding: location is not the lever, consumption is. Source: EU PVGIS v5.2, modelled per town

Grid connection through National Grid Electricity Distribution

National Grid Electricity Distribution operates the distribution network across Powys, so the export application goes to them. Anything larger than 3.68 kW per phase falls under G99, which means an application before commissioning rather than a notification afterwards. A constrained network is not the end of a scheme. Capping export costs little when the building already absorbs most of what the roof produces.

Across Powys the planning database records 18 solar schemes totalling 39 MW, of which 1 are operational (REPD Q1 2026).

Book the survey

Send us the postcode

Tell us where the unit is and roughly how big the roof is. We come back with what it can carry, what it would generate against your consumption, and the three ways to pay for it.

Lenzie Consulting Ltd arranges the survey and passes your details to our MCS-certified installation partner so they can quote.

Questions about solar in Llandrindod Wells

How much does a warehouse roof in Llandrindod Wells generate?: The model gives 825 kWh for every kWp installed here, so 500 kWp comes out at about 413,000 kWh a year before any shading losses. You need roughly 1,485 sqm of clear roof to fit it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Does the grid around Llandrindod Wells have capacity?: National Grid Electricity Distribution is the distribution network operator for Powys. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. We submit it as part of the design.