Commercial Solar Panels

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Published on 21st November 2023

Commercial Solar Panels UK Nationwide Installer

Commercial solar panels are catching on fast among UK businesses. With energy prices on the up, the toll of conventional energy sources on the environment, and the prospect of government grants, solar panels provide businesses with an economical and eco-friendly energy alternative.

We'll look into the perks of commercial solar panels, the array of installations on offer, the monetary savings businesses can anticipate, and the roadmap to planning and installation. Whether you're running a factory, an office block, or a farm, commercial solar panels could be your ticket to slashing utility costs, shrinking your carbon footprint, and attaining energy self-sufficiency.

How Much Does Commercial Solar Panel Installation Cost?

Commercial quotePanel SizeMetal RoofPitched RoofGround MountFlat Roof
10KW430w£9,987£10,986£11,485£11,785
20KW430w£13,984£15,382£16,082£16,501
30KW430w£18,226£20,049£20,960£21,507
40KW430w£23,966£26,363£27,561£28,280
50KW430w£28,557£31,413£32,841£33,697
60KW430w£32,689£35,958£37,592£38,573
70KW430w£38,112£41,923£43,829£44,972
80KW430w£42,339£46,573£48,690£49,960
90KW430W£46,223£50,845£53,156£54,543
100KW430w£50,233£55,256£57,768£59,275

Note: The quoted solar prices in this chart are subject to survey. Factors that can affect the prices include but are not limited to; Scaffolding n, Location of property, Property type, Inverter size, Bird Guard, Type of mounting manufacturer and how may roofs the panels are mounted over.

The answer isn't a one-size-fits-all, as it depends on several variables such as the system size, your energy requirements, and the available roof space. On average, for a 100kW solar system in the UK, businesses might be looking at an investment range of around £60,000 to £90,000 [1].

But here's the silver lining - there are several ways to ease that initial cost. The government offers grants and incentives to businesses investing in solar panels [2]. Additionally, financing options like asset finance are also available. One popular financing route is Power Purchase Agreements (PPAs), which allow businesses to buy solar power at a pre-agreed, stable rate [3].

Commercial Payback Period

Investing in commercial solar panels can be a smart financial move for many businesses. One of the key factors to consider is the payback period, which is when the savings from the solar energy system equal the initial investment.

On average, after taking into account the projected costs and benefits, adjusting for inflation, and applying a typical discount rate of 3.5%, commercial solar panels can pay for themselves in as little as a 2-3 years compared to residential solar which averages 6-10 years, respectively.

System Size (kW)Average Cost (£)[1]Estimated PV Output (kWh/year)[2]Estimated Annual Savings (£)[3]Estimated Payback Period (years)
4£7,0003,400£1,0206 years
10£15,0008,500£2,5505 years
50£50,00042,500£12,7503 years
100£90,00085,000£25,5002 years

The Estimated PV Output is calculated assuming that each kW of solar panels produces 850 kWh/year[2]. The Estimated Annual Savings is calculated using an average electricity cost of 30p/kWh[3]. The Estimated Payback Period is the Average Cost divided by the Estimated Annual Savings[4].

Please note, these are just estimates. The actual figures can vary depending on many factors including the location, the orientation of the solar panels, the amount of sun the location receives, and the current cost of electricity.

Sources: [1] [2] [3]

Commercial solar panels case study

Commercial Solar Case Studies

These case studies demonstrate the positive impact and remarkable payback period (2-3 years) that can be accomplished with commercial solar panels. Take a look at some our recent commercial work:

Victoria Farm Hadlow Case Study

Victoria Farm, Victoria Road, Tonbridge, TN11 0LS


"The initial system cost of £63,600.00 is expected to be recouped after 3 years.”

Generation

The system is expected to generate 57934 kWh per year initially, decreasing gradually as the solar cells degrade. Over the 25 year term of this fnancial projection the total generation is expected to be 1352940 kwh, of which 1104610 kWh will be consumed on site and 248329 kWh exported.

Payback

After adjusting projected costs and benefts for infation, and applying a discount rate of 3.5%, the initial system cost of £63,600.00 is expected to be recouped after 3 years.

Net Present Value

The total present value of future benefts and costs, using a discount rate of 3.5% per year, is £527,107.83. The cost of the PV system is £63,600.00. The net present value of the project is therefore £474,107.83. A positive net present value is a good indication that the project is fnancially worthwhile.

IRR

The Internal Rate of Return is a useful measure for comparing the relative proftability of investments - 29.1% ROI.

System Size (kW)Annual Generation (kWh)25 Year Term Generation (kWh)Consumed On Site (kWh)Exported (kWh)Cost (£)
62.2557,9341,352,9401,104,610248,329£63,600

Parts & Materials
ItemQuantity
Perlight Delta 415W Total Black - Commercial solar panel150
Solis 50kW S5 5x MPPT - 3 Phase inverter1
Emlite EMP1 Three Phase meter1
Label sheet1
DC cable warning sticker sheet1
Solis 3phase Meter1
Solis Data Logging Stick - Wi-Fi & LAN 4-Pin1
AC isolator - KN 100A 4-pole2
DC isolator - KGD40-43
Pair of MC4 connectors20
DC isolator - KGD40-31
DC isolator - KG32-41
100m reel of 6mm2 solar cable4
Fastensol mini rail 140mm (landscape)176
Fastensol end clamp (30mm black)128
Fastensol mid clamp (30mm black)236
Fastensol mini rail 400mm (portrait)188

Export Payments & Electricity Savings
YearExport PaymentsElectricity SavingsTotal
1£604£14,649£15,253
2£643£15,594£16,237
3£684£16,600£17,284
4£728£17,671£18,400
5£775£18,811£19,587
6£825£20,025£20,850
7£879£21,317£22,195
8£935£22,692£23,627
9£996£24,156£25,151
10£1,060£25,714£26,774
11£1,128£27,373£28,501
12£1,201£29,139£30,340
13£1,278£31,019£32,297
14£1,361£33,020£34,381
15£1,449£35,150£36,599
16£1,542£37,418£38,960
17£1,642£39,832£41,473
18£1,748£42,401£44,149
19£1,860£45,137£46,997
20£1,980£48,049£50,029
21£2,108£51,148£53,256
22£2,244£54,448£56,692
23£2,389£57,961£60,350
24£2,543£61,700£64,243
25£2,707£65,680£68,387

Assumptions:

  • Inflation rate: 7.04%
  • Cost of electricity: £0.3 /kWh
  • System size: 62.25 kWp
  • Discount rate: 3.5%
  • Projection length: 25 years

Discounted / Cumulative Benefits & Costs
YearDiscounted Benefits (£)Cumulative Benefits (£)Discounted Costs (£)Cumulative Costs (£)Cash Flow (£)
1£14,986£14,986£0£53,000-£38,014
2£15,394£30,381£0£53,000-£22,619
3£15,814£46,195£0£53,000-£6,805
4£16,245£62,440£0£53,000£9,440
5£16,688£79,127£0£53,000£26,127
6£17,143£96,270£0£53,000£43,270
7£17,610£113,880£0£53,000£60,880
8£18,090£131,970£0£53,000£78,970
9£18,583£150,553£0£53,000£97,553
10£19,089£169,642£0£53,000£116,642
11£19,610£189,252£0£53,000£136,252
12£20,144£209,396£0£53,000£156,396
13£20,693£230,089£0£53,000£177,089
14£21,257£251,346£0£53,000£198,346
15£21,836£273,182£0£53,000£220,182
16£22,432£295,614£0£53,000£242,614
17£23,043£318,657£0£53,000£265,657
18£23,671£342,328£0£53,000£289,328
19£24,316£366,644£0£53,000£313,644
20£24,979£391,623£0£53,000£338,623
21£25,660£417,282£0£53,000£364,282
22£26,359£443,641£0£53,000£390,641
23£27,077£470,719£0£53,000£417,719
24£27,815£498,534£0£53,000£445,534
25£28,574£527,108£0£53,000£474,108

Disclaimer

Our fnancial model calculates the benefts of a solar PV installation (such as savings in electricity, or payments for exported electricity) and costs (the initial purchase cost, and any future maintenance costs if entered), over the projected lifespan of the system.

Values are corrected for infation, system degradation, and discount rate - a measure that accounts for the fact that a promise of a monetary sum in the distant future is usually considered less valuable than the promise of the same sum in the near future.

A model is only as accurate as the assumptions it makes.

You should consider whether the values chosen are appropriate for your situation. There are many variables that dictate the fnancial return of a solar installation and we cannot forecast how they may change in the future. This fnancial projection shows a likely scenario for future fnancial returns. Actual returns may vary signifcantly from this forecast.


Boormans Farm Case Study

Boormans Farm, Court Lane, Hadlow, Kent, TN11 0JT


"The initial system cost of £63,600.00 is expected to be recouped after 3 years.”

Generation

The system is expected to generate 40977 kWh per year initially, decreasing gradually as the solar cells degrade. Over the 25 year term of this fnancial projection the total generation is expected to be 956941 kwh, of which 1096773 kWh will be consumed on site and -139833 kWh exported.

Payback

After adjusting projected costs and benefts for infation, and applying a discount rate of 3.5%, the initial system cost of £42,000.00 is expected to be recouped after 2 years.

Net Present Value

The total present value of future benefts and costs, using a discount rate of 3.5% per year, is £490,902.20. The cost of the PV system is £42,000.00. The net present value of the project is therefore £455,902.20. A positive net present value is a good indication that the project is fnancially worthwhile.

IRR

The Internal Rate of Return is a useful measure for comparing the relative proftability of investments - 37.1% ROI.

System Size (kW)Annual Generation (kWh)25 Year Term Generation (kWh)Consumed On Site (kWh)Exported (kWh)Cost (£)
41.540,977956,9411,096,773-139,833£42,000

Parts & Materials
ItemQuantity
Perlight Delta 415W Total Black - Commercial solar panel100
Solis 36kW S5 Quad MPPT - 3 Phase inverter1
Emlite EMP1 Three Phase meter1
Label sheet1
DC cable warning sticker sheet1
Solis 3phase Meter1
Solis Data Logging Stick - Wi-Fi & LAN 4-Pin1
AC isolator - KN 63A 4-pole1
DC isolator - KGD40-42
Pair of MC4 connectors12
DC isolator - KG32-41
100m reel of 6mm2 solar cable3
Fastensol mini rail 140mm (landscape)80
Fastensol end clamp (30mm black)100
Fastensol mid clamp (30mm black)150
Fastensol black end cap68
Fastensol 200mm hanger bolt for wood170
Fastensol rail splice34
Fastensol rail 3.3m51

Export Payments & Electricity Savings
YearExport PaymentsElectricity SavingsTotal
1-£340£14545£14205
2-£362£15484£15122
3-£385£16483£16097
4-£410£17546£17136
5-£437£18678£18241
6-£465£19883£19418
7-£495£21165£20671
8-£527£22531£22004
9-£561£23984£23424
10-£597£25532£24935
11-£635£27179£26544
12-£676£28932£28256
13-£720£30799£30079
14-£766£32786£32019
15-£816£34901£34085
16-£868£37152£36284
17-£924£39549£38625
18-£984£42100£41116
19-£1048£44816£43769
20-£1115£47708£46593
21-£1187£50785£49598
22-£1264£54062£52798
23-£1345£57549£56204
24-£1432£61262£59830
25-£1524£65214£63690

Assumptions:

  • Inflation rate: 7.04%
  • Cost of electricity: £0.3 /kWh
  • System size: 41.5 kWp
  • Discount rate: 3.5%
  • Projection length: 25 years

Discounted / Cumulative Benefits & Costs
YearDiscounted Benefits (£)Cumulative Benefits (£)Discounted Costs (£)Cumulative Costs (£)Cash Flow (£)
1£13,957£13,957£0£35,000-£21,043
2£14,337£28,294£0£35,000-£6,706
3£14,728£43,022£0£35,000£8,022
4£15,129£58,151£0£35,000£23,151
5£15,542£73,692£0£35,000£38,692
6£15,965£89,658£0£35,000£54,658
7£16,400£106,058£0£35,000£71,058
8£16,847£122,905£0£35,000£87,905
9£17,306£140,212£0£35,000£105,212
10£17,778£157,990£0£35,000£122,990
11£18,263£176,252£0£35,000£141,252
12£18,760£195,013£0£35,000£160,013
13£19,272£214,285£0£35,000£179,285
14£19,797£234,082£0£35,000£199,082
15£20,337£254,418£0£35,000£219,418
16£20,891£275,309£0£35,000£240,309
17£21,460£296,769£0£35,000£261,769
18£22,045£318,814£0£35,000£283,814
19£22,646£341,460£0£35,000£306,460
20£23,263£364,723£0£35,000£329,723
21£23,897£388,620£0£35,000£353,620
22£24,548£413,169£0£35,000£378,169
23£25,218£438,386£0£35,000£403,386
24£25,905£464,291£0£35,000£429,291
25£26,611£490,902£0£35,000£455,902

Disclaimer

Our fnancial model calculates the benefts of a solar PV installation (such as savings in electricity, or payments for exported electricity) and costs (the initial purchase cost, and any future maintenance costs if entered), over the projected lifespan of the system.

Values are corrected for infation, system degradation, and discount rate - a measure that accounts for the fact that a promise of a monetary sum in the distant future is usually considered less valuable than the promise of the same sum in the near future.

A model is only as accurate as the assumptions it makes.

You should consider whether the values chosen are appropriate for your situation. There are many variables that dictate the fnancial return of a solar installation and we cannot forecast how they may change in the future. This fnancial projection shows a likely scenario for future fnancial returns. Actual returns may vary signifcantly from this forecast.


First Steps Preschool Case Study

First Steps Community Playgroup, Margaret Road, Exeter, EX4 7DQ


"The initial system cost of £7,349.99 is expected to be recouped after 9 years.”

Generation

The system is expected to generate 4,500 kWh per year initially, decreasing gradually as the solar cells degrade. Over the 25 year term of this fnancial projection the total generation is expected to be 104809 kwh, of which 35191 kWh will be consumed on site and 69618 kWh exported.

Payback

After adjusting projected costs and benefts for infation, and applying a discount rate of 3.5%, the initial system cost of £7,349.99 is expected to be recouped after 9 years.

Net Present Value

The total present value of future benefts and costs, using a discount rate of 3.5% per year, is £20,364.72. The cost of the PV system is £7,349.99. The net present value of the project is therefore £14,239.73. A positive net present value is a good indication that the project is fnancially worthwhile.

IRR

The Internal Rate of Return is a useful measure for comparing the relative proftability of investments - 13.4% ROI.

System Size (kW)Annual Generation (kWh)25 Year Term Generation (kWh)Consumed On Site (kWh)Exported (kWh)Cost (£)
4.74,500104,80935,19169,618£7,349.99

Parts & Materials
ItemQuantity
JA Solar 395W Mono - Commercial solar panel12
Solis 5kW S6 Dual MPPT -1 phase inverter1
Emlite ECA2 extended cover1
Label sheet1
DC cable warning sticker sheet1
Solis Wif Stick DLS-W1
Solis Current Transformer 100A 10m1
AC isolator - KN 25A 3-pole2
DC isolator - KG20-42
Pair of MC4 connectors4
100m reel of 6mm2 solar cable1
Fastensol fat roof tub15
Fastensol mini rail 140mm60
Fastensol end clamp (30mm black)60

Export Payments & Electricity Savings
YearExport paymentsElectricity savingsTotal
1£169£420£589
2£180£447£627
3£192£476£668
4£204£507£711
5£217£539£757
6£231£574£806
7£246£611£858
8£262£651£913
9£279£693£972
10£297£737£1,034
11£316£785£1,101
12£337£835£1,172
13£358£889£1,248
14£382£947£1,328
15£406£1,008£1,414
16£432£1,073£1,505
17£460£1,142£1,602
18£490£1,216£1,706
19£522£1,294£1,816
20£555£1,378£1,933
21£591£1,467£2,058
22£629£1,561£2,190
23£670£1,662£2,332
24£713£1,769£2,482
25£759£1,883£2,642

Assumptions:

  • Inflation rate: 7.04%
  • Cost of electricity: £0.27 /kWh
  • System size: 4.74 kWp
  • Discount rate: 3.5%
  • Projection length: 25 years

Discounted / Cumulative Benefits & Costs
YearDiscounted benefitsCumulative benefitsDiscounted costsCumulative costsCashflow
1£579£579£0£6,125-£5,546
2£595£1,174£0£6,125-£4,951
3£611£1,785£0£6,125-£4,340
4£628£2,412£0£6,125-£3,713
5£645£3,057£0£6,125-£3,068
6£662£3,719£0£6,125-£2,406
7£680£4,400£0£6,125-£1,725
8£699£5,099£0£6,125-£1,026
9£718£5,817£0£6,125-£308
10£738£6,554£0£6,125£429
11£758£7,312£0£6,125£1,187
12£778£8,090£0£6,125£1,965
13£799£8,889£0£6,125£2,764
14£821£9,711£0£6,125£3,586
15£844£10,554£0£6,125£4,429
16£867£11,421£0£6,125£5,296
17£890£12,311£0£6,125£6,186
18£915£13,226£0£6,125£7,101
19£939£14,165£0£6,125£8,040
20£965£15,130£0£6,125£9,005
21£991£16,122£0£6,125£9,997
22£1,018£17,140£0£6,125£11,015
23£1,046£18,186£0£6,125£12,061
24£1,075£19,261£0£6,125£13,136
25£1,104£20,365£0£6,125£14,240

Disclaimer

Our fnancial model calculates the benefts of a solar PV installation (such as savings in electricity, or payments for exported electricity) and costs (the initial purchase cost, and any future maintenance costs if entered), over the projected lifespan of the system.

Values are corrected for infation, system degradation, and discount rate - a measure that accounts for the fact that a promise of a monetary sum in the distant future is usually considered less valuable than the promise of the same sum in the near future.

A model is only as accurate as the assumptions it makes.

You should consider whether the values chosen are appropriate for your situation. There are many variables that dictate the fnancial return of a solar installation and we cannot forecast how they may change in the future. This fnancial projection shows a likely scenario for future fnancial returns. Actual returns may vary signifcantly from this forecast.


Pembury Baptist Church Case Study

Pembury Baptist Church, Romford Road, Tunbridge Wells, TN2 4HT


"The initial system cost of £23,110.24 is expected to be recouped after 6 years.”

Generation

The system is expected to generate 10173 kWh per year initially, decreasing gradually as the solar cells degrade. Over the 25 year term of this fnancial projection the total generation is expected to be 237571 kwh, of which 137784 kWh will be consumed on site and 99787 kWh exported.

Payback

After adjusting projected costs and benefts for infation, and applying a discount rate of 3.5%, the initial system cost of £23,110.24 is expected to be recouped after 6 years.

Net Present Value

The total present value of future benefts and costs, using a discount rate of 3.5% per year, is £103,104.09. The cost of the PV system is £23,110.24. The net present value of the project is therefore £83,845.56. A positive net present value is a good indication that the project is fnancially worthwhile.

IRR

The Internal Rate of Return is a useful measure for comparing the relative proftability of investments - 18.9% ROI.

System Size (kW)Annual Generation (kWh)25 Year Term Generation (kWh)Consumed On Site (kWh)Exported (kWh)Cost (£)
10.6610,173237,571137,78499,787£23,110

Parts & Materials
ItemQuantity
JA Solar 395W Mono - Commercial solar panel27
Solis Energy Storage 6kW Hybrid inverter1
Solis 5kW S6 Dual MPPT -1 phase inverter1
Emlite EMP1 Three Phase meter1
Label sheet2
DC cable warning sticker sheet1
Solis Wif Stick DLS-W2
Solis Current Transformer 100A 10m1
Tesla Fittings Pack2
AC isolator - KN 32A 3-pole2
PureStorage II Battery 5kWh2
DC isolator - KG20-44
Pair of MC4 connectors8
AC isolator - KN 25A 3-pole2
50m reel of 4mm2 solar cable3
Fastensol end clamp (30mm black)32
Fastensol mid clamp (30mm black)38
Fastensol black end cap32
Fastensol landscape fat tile roof hook36
Genius retroft70
PV Array Bird Mesh2
BirdBlocker clips for square tube (box of 50)5
Fastensol rail 3.3m23
Fastensol portrait fat tile roof hook34
Fastensol rail splice8

Export Payments & Electricity Savings
YearExport paymentsElectricity savingsTotal
1£243£2,741£2,984
2£258£2,918£3,176
3£275£3,106£3,381
4£293£3,306£3,599
5£312£3,520£3,831
6£332£3,747£4,078
7£353£3,988£4,341
8£376£4,246£4,622
9£400£4,520£4,920
10£426£4,811£5,237
11£453£5,122£5,575
12£483£5,452£5,935
13£514£5,804£6,317
14£547£6,178£6,725
15£582£6,577£7,159
16£620£7,001£7,621
17£660£7,453£8,112
18£702£7,933£8,636
19£748£8,445£9,193
20£796£8,990£9,786
21£847£9,570£10,417
22£902£10,187£11,089
23£960£10,845£11,805
24£1,022£11,544£12,566
25£1,088£12,289£13,377

Assumptions:

  • Inflation rate: 7.04%
  • Cost of electricity: £0.45 /kWh
  • System size: 10.66 kWp
  • Discount rate: 3.5%
  • Projection length: 25 years

Discounted / Cumulative Benefits & Costs
YearDiscounted benefitsCumulative benefitsDiscounted costsCumulative costsCashflow
1£2,931£2,931£0£19,259-£16,327
2£3,011£5,943£0£19,259-£13,316
3£3,093£9,036£0£19,259-£10,223
4£3,178£12,213£0£19,259-£7,045
5£3,264£15,478£0£19,259-£3,781
6£3,353£18,831£0£19,259-£428
7£3,445£22,275£0£19,259£3,017
8£3,538£25,814£0£19,259£6,555
9£3,635£29,449£0£19,259£10,190
10£3,734£33,183£0£19,259£13,924
11£3,836£37,018£0£19,259£17,760
12£3,940£40,959£0£19,259£21,700
13£4,048£45,006£0£19,259£25,748
14£4,158£49,164£0£19,259£29,906
15£4,271£53,435£0£19,259£34,177
16£4,388£57,823£0£19,259£38,565
17£4,507£62,330£0£19,259£43,072
18£4,630£66,960£0£19,259£47,702
19£4,756£71,717£0£19,259£52,458
20£4,886£76,603£0£19,259£57,344
21£5,019£81,622£0£19,259£62,363
22£5,156£86,778£0£19,259£67,519
23£5,296£92,074£0£19,259£72,816
24£5,441£97,515£0£19,259£78,256
25£5,589£103,104£0£19,259£83,846

Disclaimer

Our fnancial model calculates the benefts of a solar PV installation (such as savings in electricity, or payments for exported electricity) and costs (the initial purchase cost, and any future maintenance costs if entered), over the projected lifespan of the system.

Values are corrected for infation, system degradation, and discount rate - a measure that accounts for the fact that a promise of a monetary sum in the distant future is usually considered less valuable than the promise of the same sum in the near future.

A model is only as accurate as the assumptions it makes.

You should consider whether the values chosen are appropriate for your situation. There are many variables that dictate the fnancial return of a solar installation and we cannot forecast how they may change in the future. This fnancial projection shows a likely scenario for future fnancial returns. Actual returns may vary signifcantly from this forecast.


St Pauls Methodist Centre Case Study

St Pauls Methodist Centre, Bath Street, Aberystwyth, SY23 2NN


"The initial system cost of £24,096.00 is expected to be recouped after 6 years.”

Generation

The system is expected to generate 9054 kWh per year initially, decreasing gradually as the solar cells degrade. Over the 25 year term of this fnancial projection the total generation is expected to be 211439 kwh, of which 156208 kWh will be consumed on site and 55231 kWh exported.

Payback

After adjusting projected costs and benefts for infation, and applying a discount rate of 3.5%, the initial system cost of £24,096.00 is expected to be recouped after 6 years.

Net Present Value

The total present value of future benefts and costs, using a discount rate of 3.5% per year, is £112,025.97. The cost of the PV system is £24,096.00. The net present value of the project is therefore £91,175.07. A positive net present value is a good indication that the project is fnancially worthwhile.

IRR

The Internal Rate of Return is a useful measure for comparing the relative proftability of investments - 19.4% ROI.

System Size (kW)Annual Generation (kWh)25 Year Term Generation (kWh)Consumed On Site (kWh)Exported (kWh)Cost (£)
11.859,054211,439156,20855,231£24,096

Parts & Materials
ItemQuantity
JA Solar 395W Mono - Commercial solar panel30
Solis 12kW S5 Dual MPPT - 3 Phase inverter1
Tesla Gateway 2 - not an inverter1
Emlite EMP1 Three Phase meter1
Label sheet2
iBoost +1
DC cable warning sticker sheet1
Tigo Retroft Frame Mounted Optimiser TS4-A-O2
Tesla Fittings Pack1
Solis 3phase Meter1
Solis Data Logging Stick - Wi-Fi & LAN 4-Pin1
AC isolator - KN Newbury 20A 4-pole2
Pair of MC4 connectors4
AC isolator - KN 32A 3-pole2
Tesla Powerwall 21
50m reel of 4mm2 solar cable2
Fastensol end clamp (30mm black)40
Fastensol mid clamp (30mm black)40
Fastensol black end cap40
Fastensol landscape fat tile roof hook52
Genius retroft80
Fastensol portrait fat tile roof hook28
Fastensol rail splice8
Fastensol rail 3.3m27

Export Payments & Electricity Savings
YearExport paymentsElectricity savingsTotal
1£134£3,107£3,242
2£143£3,308£3,451
3£152£3,521£3,673
4£162£3,748£3,910
5£172£3,990£4,163
6£184£4,248£4,431
7£195£4,522£4,717
8£208£4,813£5,021
9£221£5,124£5,345
10£236£5,455£5,690
11£251£5,806£6,057
12£267£6,181£6,448
13£284£6,580£6,864
14£303£7,004£7,307
15£322£7,456£7,778
16£343£7,937£8,280
17£365£8,449£8,814
18£389£8,994£9,383
19£414£9,574£9,988
20£440£10,192£10,633
21£469£10,850£11,319
22£499£11,550£12,049
23£531£12,295£12,826
24£566£13,088£13,654
25£602£13,932£14,534

Assumptions:

  • Inflation rate: 7.04%
  • Cost of electricity: £0.45 /kWh
  • System size: 11.85 kWp
  • Discount rate: 3.5%
  • Projection length: 25 years

Discounted / Cumulative Benefits & Costs

Here is the markdown table with £ added and year column headers updated:

YearDiscounted benefitsCumulative benefitsDiscounted costsCumulative costsCashflow
1£3,185£3,185£20£20,100-£16,915
2£3,272£6,457£21£20,121-£13,665
3£3,361£9,818£22£20,143-£10,325
4£3,453£13,270£22£20,165-£6,895
5£3,547£16,817£23£20,189-£3,372
6£3,643£20,460£24£20,213£248
7£3,743£24,203£25£20,237£3,966
8£3,845£28,047£26£20,263£7,785
9£3,949£31,997£26£20,289£11,708
10£4,057£36,054£27£20,316£15,738
11£4,168£40,222£28£20,344£19,877
12£4,281£44,503£29£20,374£24,129
13£4,398£48,901£30£20,404£28,497
14£4,518£53,418£31£20,435£32,984
15£4,641£58,059£32£20,467£37,593
16£4,767£62,827£33£20,500£42,327
17£4,897£67,724£34£20,534£47,190
18£5,031£72,755£35£20,569£52,186
19£5,168£77,923£36£20,606£57,317
20£5,309£83,231£38£20,643£62,588
21£5,453£88,685£39£20,682£68,003
22£5,602£94,287£40£20,722£73,565
23£5,755£100,042£41£20,764£79,278
24£5,912£105,953£43£20,807£85,147
25£6,073£112,026£44£20,851£91,175

Disclaimer

Our fnancial model calculates the benefts of a solar PV installation (such as savings in electricity, or payments for exported electricity) and costs (the initial purchase cost, and any future maintenance costs if entered), over the projected lifespan of the system.

Values are corrected for infation, system degradation, and discount rate - a measure that accounts for the fact that a promise of a monetary sum in the distant future is usually considered less valuable than the promise of the same sum in the near future.

A model is only as accurate as the assumptions it makes.

You should consider whether the values chosen are appropriate for your situation. There are many variables that dictate the fnancial return of a solar installation and we cannot forecast how they may change in the future. This fnancial projection shows a likely scenario for future fnancial returns. Actual returns may vary signifcantly from this forecast.


How To Get Started With Commercial Solar Panels

How to Get Started with Commercial Solar Panels

Thinking of switching to solar power for your business? You're not alone. In fact, in the UK, there has seen a 6.7% increase in solar capacity with a record 18,808 installations in June 2023 alone [1]. Here's a comprehensive guide to help you understand the process.

Step 1: Determine Your Solar PV System Size

Your energy consumption, roof size, and other site-specific requirements will determine the size of the solar PV system you need. With the UK's total solar capacity standing at an impressive 15 GW as of 2024 [3], more businesses are realising the potential of solar power. A consultation with a commercial solar panel installer can help you gauge the right system size and provide an accurate installation quote.

Step 2: Request a Solar Panel Installation Quote

Getting an installation quote involves evaluating factors like roof space, projected cost savings, system size, and your business's energy consumption. Companies across the UK offer customised quotes based on these factors, and with the National Grid anticipating a fivefold increase in solar PV generation from 14GW to roughly 70GW by 2030 [2], there's never been a better time to make the switch.

Step 3: Plan and Execute Your Solar Panel Installation

Implementing commercial solar panels requires careful consideration of site requirements, potential planning permissions, and choosing the right installers. In the UK, around 10% of households in Cornwall have already installed solar panels [4], showing the growing acceptance of this renewable energy source.

Do You Require Planning Permission for Commercial Solar Panels?

While planning permission may not always be necessary, it's advisable to familiarise yourself with your local council's regulations. Some solar panel grants and incentives may require planning permission, so staying informed ensures a smooth installation process.

Choosing the Best Commercial Installer

Choosing the right solar panel installers can make a difference in efficient installation, reduced maintenance costs, and optimal energy generation. It's crucial to choose experienced installers who can provide expert maintenance, suggest the best solar panels for commercial use, and guide you on potential cost savings.

Solar power accounted for 41.4% of the UK's renewable energy production in 2022 [5], and this number is only set to rise. With the right planning and execution, your business can contribute to this exciting growth.

Sources: [1] [2] [3] [4] [5]

Commercial Solar Panel Installation Types

Commercial Solar Panel Installation Types

Whether you're running a farm, a factory, or an office block, solar power can lead to significant cost savings, a reduced carbon footprint, and a brighter future for all.

Roof Commercial Solar Panels

Imagine turning your business rooftop into a personal power station. In the UK, the average commercial solar panel system can save your business around £1,500 per year on energy bills, according to the Energy Saving Trust [1]. Plus, you'd be utilising an otherwise idle roof space, making it a win-win situation.

Ground Mounted Commercial Solar Panels

If your business premises is blessed with ample land, ground-mounted solar panels could be a splendid choice. They're particularly suitable for businesses without suitable roof space. As per the Solar Trade Association [2], a 4kWp system can generate around 3,800 kilowatt hours of electricity a year in the south of England - that's about the same as a typical household's electricity consumption, mind you!

Solar Panels For Farms

For farms, solar panels offer a sustainable way to meet energy needs. The National Farmers' Union reports that 30% of farmers in the UK are now using solar power in their operations [3] - that's significant growth in the sector.

Solar Panels For Factories

Factories can also benefit from solar power. Industrial energy consumption in the UK accounted for 17% of total energy consumption in 2019 [4]. With solar installations, factories can reduce these figures and contribute to a cleaner planet.

Solar Panels For Manufacturing Businesses

Solar power is a brilliant option for manufacturing businesses. The Renewable Energy Hub states that a 50kWp system could save a business about £11,000 a year [5]. That's not just impressive, it's downright revolutionary!

Solar Panels For Horticulture

For those in the horticulture industry, solar panels can provide the energy needed to grow plants sustainably. The Solar Trade Association suggests that a 10kWp system can generate around 8,500 kilowatt hours of electricity a year [2]. That's a lot of energy for your green thumbs!

Solar Panels For Offices

Office buildings can make a significant difference by switching to solar. Businesses can save up to 40% on their energy bills with solar power, according to the Energy Saving Trust [1]. And, let's not forget, it's a rather good look for your company's green credentials.

Sources: [1] [2] [3] [4] [5]

Financial Benefits of solar panels for businesses

Financial Benefits of Solar Panels for Businesses

Solar panels are not just a tool for environmental conservation, they are also a strategic financial decision for businesses. From substantial cost reductions to government incentives, commercial solar panels bring a wealth of benefits to UK businesses.

Reduced Utility Costs

Solar panels can significantly lower a business's energy bills by generating electricity onsite. With the total solar capacity in the UK standing at 15 GW as of 2023, there's ample evidence of businesses reaping the benefits of this renewable energy source [1].

Impressive Returns on Investment

Solar panels are not just an expenditure; they're an investment with a promising return. In 2023, the UK experienced its best year ever for solar installations, with the number rising above 20,000 for the first time [2]. This surge in installations is a testament to the financial advantages businesses are experiencing.

Financial Stability

With solar energy, businesses can better predict their energy expenses, improving financial stability. Solar panels also offer a buffer against fluctuating energy prices, providing a reliable and renewable energy source.

Government Incentives and Funding Options

The UK government offers grants, incentives, and funding options for businesses who are considering commercial solar panels. These incentives are designed to make renewable energy generation more accessible and financially viable.

Low Risk Investment

Solar panels are considered a low-risk investment option for businesses in the UK. With a favourable public sentiment (around 88% support as of March 2023[3]) and the potential for significant cost savings on energy bills, installing solar panels is a smart, responsible choice for businesses.

Investing in solar panels is more than just a financial decision; it's a commitment to a sustainable future. By making this choice, businesses are contributing to the growth of renewable energy and the reduction of the carbon footprint in the UK.

Sources: [1] [2] [3]

Commercial solar panels FAQ

Commercial Solar Panels FAQ


Which type of solar panel is best for commercial use?

The optimal type of solar panel for commercial use depends on various factors such as energy needs, budget, location, and available space. Monocrystalline, polycrystalline, and thin-film solar panels are all options, each with its own advantages.

Monocrystalline panels are known for their high efficiency and compact design.

Polycrystalline panels are usually more affordable and perform well in various light conditions.

Thin-film panels are lightweight and flexible, making them suitable for certain commercial applications.


How much does a 100kW solar system cost?

In the UK, a 100kW solar system can range from £80,000 to £130,000. This cost can vary based on factors like the type of panels used, the location, and installation costs.


Where Can Commercial Solar Panels Be Installed?

Commercial solar panels can be installed on a variety of structures in the UK such as warehouses, factories, offices, farms, and schools. The panels can be either roof-mounted or ground-mounted, depending on the available space and orientation.


How long do commercial solar panels last?

The lifespan of commercial solar panels in the UK is typically between 25 to 35 years. This lifespan can depend on factors like the quality of the panels, weather conditions, and regular maintenance.


When will your business break even on solar panels?

The break-even point for commercial solar panels depends on several factors, including the initial cost of installation, energy usage, local utility rates, and available grants or incentives. On average, businesses in the UK can expect to break even within around 6 to 9 years.


What is included in your commercial solar PV installation?

A commercial solar PV installation in the UK typically includes the solar panels, inverters, mounting systems, and electrical wiring. The process begins with a site assessment, followed by design and permitting, and finally, the installation of the solar panels. A project manager oversees this process to ensure quality and timely completion.