What would a 500 kWp array produce on a farm near Kingston?

Yes, and the figure matters more than the sunshine. At 987 kWh per kWp a year, a 500 kWp array on a Kingston holding models at around 494,000 kWh. What changes the answer is how much of that the farm uses itself. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Which network operator handles the connection around Kingston?

Applications go to UK Power Networks, who run the network across Greater London. On a farm the incoming supply matters as much as their answer: a single phase supply caps what can be installed whatever the roof would take.

Solar panels for farms in Kingston

A Kingston farm buys electricity at the worst rate of the day in exactly the hours its roof could be generating. Each survey records the sheet type and condition, the usable area once rooflights and vents come out, and whether the supply is single or three phase.

987 kWh per kWp a year at this latitude, so a 500 kWp array models at about 494,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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Drawing Kingston unit

Roof 96 x 62 m

Array 500 kWp

Yield 494,000 kWh/yr

Scale 1:500 / Rev A / Greater London

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

Kingston / Greater London

A modern steel framed agricultural building with its roof covered in solar panels, tractor and trailer in the yard, fields beyond — Industrial stock of the kind we survey across Greater London.

Farm building solar PV across Greater London

What a farm roof near Kingston generates

Modelled irradiation at this latitude is 1265 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 987 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 11 percent above the mean across the areas we cover, which is as strong as UK farm rooftop gets outside the south coast.

No solar scheme is recorded in this postcode district in the planning database. On a farm that usually means nothing has been built above the reporting threshold rather than that nothing has been built, because a roof array on a shed rarely appears in it.

FIG. 1 What a Kingston roof makes, month by month

Jun produces 6.1 times what Dec does on the same roof. A 500 kWp array here models at about 494,000 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	26	13,000
Feb	42	21,000
Mar	80	40,000
Apr	115	57,500
May	132	66,000
Jun	140	70,000
Jul	139	69,500
Aug	114	57,000
Sep	88	44,000
Oct	54	27,000
Nov	32	16,000
Dec	23	11,500

Source: EU PVGIS v5.2

FIG. 2 Kingston against the rest of Greater London

Kingston987
Tower Hamlets976
Bexley916
Woolwich912
Fulham910
Hammersmith910
Hounslow910
Richmond910
Barking909

Kingston ranks 1 of 50 towns we cover in Greater London on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 847 to 987, a spread of 140 kWh per kWp. On a 500 kWp array that is about 70,000 kWh a year between the strongest and weakest town in the county.

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 UK Power Networks

UK Power Networks operates the distribution network across Greater London, 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.

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 Kingston

What would a 500 kWp array produce on a farm near Kingston?: Yes, and the figure matters more than the sunshine. At 987 kWh per kWp a year, a 500 kWp array on a Kingston holding models at around 494,000 kWh. What changes the answer is how much of that the farm uses itself. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Which network operator handles the connection around Kingston?: Applications go to UK Power Networks, who run the network across Greater London. On a farm the incoming supply matters as much as their answer: a single phase supply caps what can be installed whatever the roof would take.