30kW_kingspan
 

 

Cost of 50kW Solar PV installation £59,200, energy produced 42,160kWh per year, income from Feed In Tariff £5,493 per year (index linked), payback period 6.2 years, ROI 15.1%

10kW solar pv installation costs - also for 10kW - 150kW Solar PV Installations

Price indications:

Medium sized solar installations 10- 150kW

Below charts are indicative prices and returns for projects based on 50% of power used on site and 50% sold back to the grid

Solar Returns - Roof Mount

PV size in kW

10kW

20kW

30kW

50kW

150kW

Feed in tariff per kWh

13.99p

13.03p

13.03p

13.03p

11.5p

Area (roof / ground)

67m2

140m2

208m2

340m2

1042m2

Price (ex VAT)

£15,250

£28,500

£38,900

£59,200

£155,000

Annual output in kWh

8,430

16,860

25,290

42,160

126,480

50% used on site

4,215

8,430

12,645

21,080

63,240

Feed in tariff income - 100% (retail price index linked)

£1,179

£2,196

£3,295

£5,493

£14,545

Saving from own use @ 12p/kWh on 50%

£505

£1,011

£1,518

£2,529

£7,588

Export tariff to grid (income) @ 4.5p/kWh on 50%

£189

£379

£569

£948

£2,845

Total annual financial benefit

£1,873

£3,586

£5,382

£8,970

£24,978

Annual % return

12.2%

12.5%

13.8%

15.1%

16.1%

Total life generation - 20 Years

£37,460

£71,720

£107,640

£179,400

£499,560

Pay back in years

8.1

7.9

7.2

6.5

6.2

Projected total income allowing for 3% inflation & 0.7% p.a panel degradation

£61,884

£118,426

£177,639

£296,135

£824,531

Payback in years

7.5

7.3

7.1

6.2

5.9

 

30kW_solar_pv   30kW_soolar_PV_kingspan_roof

Solar Returns - Ground Mount

PV size in kW

10kW

20kW

30kW

50kW

150kW

Feed in tariff per kWh 

13.9P

13.03P

13.03P

13.03P

11.5P

Area 

67m2

290m2

705m2

1,000m2

1042m2

Price (ex VAT)

£18,000

£30,000

£40,250

£60,000

£160,000

Annual output in kWp

8,430

16,860

25,290

42,160

126,480

50% used on site 

4,215

8,430

12,645

21,080

63,240

Feed in tariff income - 100% (retail price index linked)

£1,179

£2,196

£3,295

£5,493

£14,545

Saving from own use @ 12p/kWh on 50%

£505

£1,011

£1,518

£2,529

£7,588

Export tariff to grid (income) @ 4.5p/kWh on 50%

£189

£379

£569

£948.00

£2,845

Total annual financial benefit

£1,873

£3,586

£5,382

£8,970

£24,978

Annual % return

10

11.9

13.3

14.9

15.6

Total life generation - 20 Years

£37,460

£71,720

£107,640

£179,400

£499,560

Pay back in years 

9.6

8.3

7.4

6.6

6.4

Projected total income allowing for 3% inflation & 0.7% p.a panel degradation

£61,884

£118,426

£177,639

£296,135

£824,531

Payback in years

9.8

8.1

7.9

7.3

6

 

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