Enter true internal business costs, then input your desired customer sell price to calculate profit and margin.
Client / Project Details
Job Inputs
Use this when one job has different roof/mounting types. If left at 0, the calculator uses the single Mounting Type above for all panels.
Flat Roof Mounting: ValkPro+ South calculated at £116 per panel from UK Greentech quote 662-57985. Example: 10 roof panels + 12 ValkPro+ South panels can now be split in the Mixed Roof Mounting Split section.
Auto DC Isolator Rule: Select the required DC isolator quantity manually. Default cost per isolator is £36.
Labour
Equipment
EV Chargers & EV Cable
Internal cost can be adjusted below if supplier pricing changes.
Leave as 0 to use selected EV charger cost above.
Use if EV install is additional to the main install labour.
PV Ultra Cable Calculator
Leave as 0 to use the selected cable price. Enter a price here to override.
Calculated automatically: metres × cost per metre.
MC4 Connector Calculator
Based on MC4-Evo2A twin pack quotation cost.
Options & Extras
Sales & Profit
Pricing Logic:
This calculator now shows TRUE SolarFX internal costs only.
Enter the final agreed customer sell price manually to instantly calculate:
True business profit
Profit after labour
Profit margin
Gateways only add £600 internal cost unless additional labour is manually added.
Materials Cost Ex VAT£0.00
Labour Cost Ex VAT£0.00
Scaffold Cost Ex VAT£0.00
Other Fixed Costs Ex VAT£0.00
Total Cost To SolarFX£0.00
Customer Sell Price£0.00
VAT Element£0.00
Customer Final Price£0.00
VAT Exposure Excluding Employee Labour£0.00
Initial Cash Outlay Before VAT Reclaim£0.00
Business Profit After Labour£0.00
Profit Margin0%
VAT Cashflow Logic:
This calculator estimates SolarFX cash tied up before VAT reclaim.
VAT exposure is calculated across:
Materials
Scaffold & external services
Other VATable fixed costs
Employee labour is excluded from VAT exposure.
Useful for forecasting working capital and VAT reclaim delays.
Gateway Logic: Gateway only adds £600 to SolarFX internal costs. Final customer pricing is entered manually by the team.
PV Ultra Logic: Cable prices are loaded per metre from Segen quotation SFPV00201: 2C 4mm £5.55/m, 2C 6mm £6.78/m, 4C 4mm £7.94/m, 4C 6mm £9.18/m.
MC4 Logic: MC4 twin pack is loaded at £3.36 per pair; select how many pairs are required.
PV Ultra Logic: Select the cable type, enter the metre run, and the calculator will multiply metres by the per-metre cost. Use override for supplier-specific prices.
EV Charger Logic: Fox L Series, Anker 7kW and Sigenergy 7kW EV options have been added. EV Ultra cable can be costed per metre with manual override.
ConduDisc Logic: Standard earth rod is included in the gateway allowance. Selecting ConduDisc adds £300 internal cost as a premium earthing alternative.
String / Isolator Logic: Select the number of strings and required DC isolator quantity manually.
Client Details
Client Name
Project / Site Reference
Email
Phone
Installation Address
Job Notes
Breakdown
Item
Cost Ex VAT
Quote Actions Save this quote to the SolarFX Google Sheet Quote Log, or print/save as PDF.
To save as PDF, use browser menu: File → Print → Save as PDF.
