**Document:** Solar PV Designer Report
**Application:** 25/90754/B — Erection of 60 ground-mounted solar photovoltaic panels
**Decision:** Permitted
**Decision Date:** 2025-11-18
**Parish:** Lezayre
**Document Type:** report / planning_statement
**Source:** https://planningportal.im/a/33199-lezayre-loughen-e-yeigh-farm-bayr-solar-panels/documents/1590546

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# Solar PV Designer Report

###### Smart Battery

![A 3D computer-generated site model visualization showing the proposed layout of solar panels and trees on a grassy field.](https://images.planningportal.im/2025/08/6837958.png)

###### Battery + PV SolarEdge Home Battery 9.7kWh x 3 Smart Battery Management

Self-consumption Bill Savings on Battery Lifetime Total Storage Capacity Total Battery Power

65%

£ 212,707

29.1 kWh

### 15 kW

##### SYSTEM OVERVIEW 60 PV modules 2 Inverters 60 Optimizers 3 Batteries

###### Financial Overview

###### Net Payments

£ 86,625

Lifetime Bill Savings (NPV)

£ 212,707

£57,203Lifetime Bill Savings(NPV)

###### System Profit (NPV)

£ 126,083

###### Internal Return Rate (IRR)

10.52 %

###### Payback Period

8.6 years

###### Simulation Results

Installed DC Power

Max Achieved AC Power

26.7kWp

20kW

Annual Usable Solar Production

24,593kWh

Annual CO₂ Emission Saved

4.76t

Annual Equivalent Trees Planted

Max Achieved DC Power

25.96kW

DC/AC Oversizing

130%

Max Active AC Power

20kW

Performance Ratio

79%

Annual Specific Production

921kWh/kWp

###### Annual Consumption And Production Results

- ● To Home 13,549 kWh (54%)

- ● To Battery 5,892 kWh (24%)

- ● To Grid 5,359 kWh (21%)

## Total Production 24,933 kWh

54% 24% 21%

Clipped Energy 132.34 kWh (1%)

- ● From Solar 13,549 kWh (32%)

- ● From Battery 5,685 kWh (13%)

Stored Electricity To Use 8,455 kWh (20%)

- ● From Grid 14,729 kWh (35%)

Consumption 42,419 kWh 32% 13% 20% 35%

- 45% Energy from solar with battery
- ●From Solar 5,892 kWh (41%)

From Clipped Energy 48.79 kWh (0%)

- ●From Grid 8,479 kWh (59%)

Battery - Energy Sources Battery - Energy Destinations Battery - Energy Arbitrage

### 14,421

### 14,372

### 8,479

kWh

kWh

kWh

- ●Back to Grid 0.00 kWh (0%)
- ●To Home 8,455 kWh (100%)
- ●Pure Arbitrage 24.02 kWh (0%)

- ●To Home 14,347 kWh (100%)
- ●To Grid 24.29 kWh (0%)

ESTIMATED MONTHLY ENERGY

- 1,000kWh
- 2,000kWh
- 3,000kWh
- 4,000kWh
- 5,000kWh

Total Production

Clipped Energy

- ● To Grid

- ● To Home

- ● To Battery

Consumption

- ● From Grid

- ● From Solar

- ● From Battery

0Wh

Jan Apr Jul Oct

#### Total Clipped Energy PV only: 0.74% Total Clipped Energy With Battery: 0.4%

Clipped Energy (kWh) From Battery (kWh) Production (kWh) To Battery (kWh)

To Home (kWh)

To Grid (kWh)

Consumption (kWh)

From PV (kWh)

From Grid (kWh)

Month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

- 1,890
- 2,069

- 2,898
- 3,503

- 3,999 3,772 3,641 3,029 2,307 2,234 1,848 1,884

151 259 622 780 914 700 580 638 654 309 165 119

-

111 666

1,200 1,175 1,299

738 180

10 4

-

10 31 19 48 24

-

4,430 4,173 4,257 3,879 3,630 2,766 2,440

- 2,449

- 2,575
- 3,583

- 3,877
- 4,360

1,755 1,599 1,371 1,019 921 670 555 630 758 1,434 1,667 1,760 2,541 2,104 1,470

- 1,041 831 170

97 158 448

- 1,360
- 2,029

- 2,480

###### Pv Modules

## Module Model Peak power Racking type Orientation Azimuth Tilt

JinkoSolar Holding Co. Ltd., JKM-445N-54HL4R-B Tiger Neo N-Type All Black

26.7 kWp

189° 20°

Total: 60 26.7 kWp

###### Estimated Bill Savings Year 1

Avg. Monthly

Current Monthly Bill

£ 907.67

Monthly Bill with SolarEdge

£ 341.41

Net Bill Monthly Savings

£ 566.26

£148.90Savings from Battery

Bill Offset

62.39 %

16.4%Savings from Battery

Estimated Net Lifetime Bill Savings

£ 212,707

£57,203Savings from Battery Utility Provider: Manx Utilities Utility Rate: JULY 2025 COMFY HEAT Export Rate: JUNE 2025 SUSTAINABLE GENERATION TARIFF (0.097 £/kWh)

###### Detailed Financial Analysis

System Price

£ 62,352

Maintenance Cost (NPV)

£ 24,273

Returns from Incentives (NPV)

£ N/A

Net Payments

£ 86,625

Lifetime Bill Savings (NPV)

£ 212,707

System Profit (NPV)

£ 126,083

Internal Return Rate (IRR)

10.52 %

Return Of Investment (ROI)

145.55 %

Levelized Cost Of Energy (LCOE)

£/kWh 0.108

Payback Period

8.6 years

150,000

Cumulative Cash Flow

100,000

- -100,000
- -50,000

0 1 2 3 4 5 6 7 8 910111213141516171819202122232425

Year

###### Yearly Cash Flow

## Year System Price Replacement Costs Net Bill Savings Annual Cash Flow Cumulative Cash Flow

- 0 £ -62,352.00 £ 0.00 £ -62,352.00 £ -62,352.00
- 1 £ 6,795.14 £ 6,795.14 £ -55,556.86

###### Yearly Cash Flow (Continued)

## Year System Price Replacement Costs Net Bill Savings Annual Cash Flow Cumulative Cash Flow

- 2 £ 6,919.01 £ 6,919.01 £ -48,637.85
- 3 £ 7,045.25 £ 7,045.25 £ -41,592.60
- 4 £ 7,174.31 £ 7,174.31 £ -34,418.29
- 5 £ 7,305.67 £ 7,305.67 £ -27,112.63
- 6 £ 7,438.12 £ 7,438.12 £ -19,674.51
- 7 £ 7,573.90 £ 7,573.90 £ -12,100.61
- 8 £ 7,711.02 £ 7,711.02 £ -4,389.59
- 9 £ 7,850.30 £ 7,850.30 £ 3,460.71
- 10 £ 7,993.33 £ 7,993.33 £ 11,454.04
- 11 £ 8,139.54 £ 8,139.54 £ 19,593.58
- 12 £ -3,600.00 £ 8,286.91 £ 4,686.91 £ 24,280.49
- 13 £ 8,435.91 £ 8,435.91 £ 32,716.40
- 14 £ 8,590.25 £ 8,590.25 £ 41,306.65
- 15 £ -20,672.64 £ 8,747.28 £ -11,925.36 £ 29,381.28
- 16 £ 8,906.04 £ 8,906.04 £ 38,287.32
- 17 £ 9,069.41 £ 9,069.41 £ 47,356.73
- 18 £ 9,234.56 £ 9,234.56 £ 56,591.29
- 19 £ 9,401.64 £ 9,401.64 £ 65,992.93
- 20 £ 9,571.15 £ 9,571.15 £ 75,564.07
- 21 £ 9,745.49 £ 9,745.49 £ 85,309.57
- 22 £ 9,920.43 £ 9,920.43 £ 95,230.00
- 23 £ 10,099.69 £ 10,099.69 £ 105,329.68
- 24 £ 10,282.89 £ 10,282.89 £ 115,612.57
- 25 £ 10,469.94 £ 10,469.94 £ 126,082.51

Total: £ -24,272.64 £ 212,707.15 £ 126,082.51

###### Bill Of Materials (Bom)

Items Part Number Quantity Price (£) Total (£)

Base Price per W (DC) 26700 34,710.00

1.30

SE10000H Home Wave 2

###### S440 60

5750.00

SolarEdge Home Battery 9.7kWh 3 17,250.00 JKM-445N-54HL4R-B Tiger Neo N-Type All Black VAT 20 % 10,392.00 Total Price: £ 62,352.00

###### Electrical Design

Inverters & Storage Strings per inverter Optimizers per string PV modules per string 1 xSE10000H Home Wave 12.98kW | 130% Oversizing

3 x strings

10 x S440

- 1 x SolarEdge Home Battery 9.7kWh

- 2 x SolarEdge Home Battery 9.7kWh

1 xSE10000H Home Wave 12.98kW | 130% Oversizing

3 x strings

10 x S440

###### System Loss Diagram

Global horizontal irradiance Global irradiance on PV modules

Shading irradiance loss

###### Reflection loss Energy after PV conversion

Irradiance level loss Temperature loss Shading electrical loss Module quality loss Yield factor loss Optimizer efficiency loss DC Ohmic wiring loss Energy after DC losses Inverter efficiency loss Inverter clipping loss Produced energy Exported energy

| |
|---|

+15.32%

| |
|---|

-13.35%

| |
|---|

-2.19% 26.39 MWh

- -1.87%
- -0.79%
- -1.27%

+0.74%

- -0.03%
- -1.32%
- -0.59%

25.07 MWh

- -1.63%
- -0.54%

33.07 MWh

SIMULATION PARAMETERS

LOCATION & GRID

Time zone GMT+1 (Isle_of_Man) Weather station Pointofayre (Lh) (11 km away) Station altitude 9 m Station data source Meteonorm 8.2 Grid 400V L-L, 230V L-N Export limit to grid 10 kW

LOSS FACTORS

Near shading Enabled Albedo 0.20 Bi-Facial Albedo 0.30 Soiling/Snow 0% Incidence angle modifier (IAM), ASHRAE b0 param. 0.05 Thermal loss factor Uc (const) Flush mount 20 Thermal loss factor Uc (const) Tilted 29 LID loss factor 0% System unavailability 0%

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*Data sourced from the Isle of Man public planning register under the [Isle of Man Open Government Licence](https://www.gov.im/about-this-site/open-government-licence/).*
*Canonical page: https://planningportal.im/a/33199-lezayre-loughen-e-yeigh-farm-bayr-solar-panels/documents/1590546*