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Solar energy

Photovoltaic systems, batteries, solar thermal and grid-connection paperwork.

The industry is preselected at signup; change it any time in Settings.

Units
pcs · set · m² · m · h · lump sum
Words
Project · Section · Item · Client
Documents
11 types
Countries
Albania · Italy

What is switched on for this industry.

These modules are on from the start. Switch any other module on or off in Settings › Company, without losing anything.

  • 01Quantity calculatorWork out quantities from dimensions (length × width × height, number of parts, formulas) and keep the workings with the estimate.
  • 02Cost breakdownsBuild unit prices from resources (materials, labour, equipment) times quantities, with overhead and profit, so you know your real cost.
  • 03Change ordersRecord extra or changed work after the client has accepted, each with its own approval and amount.
  • 04Material listAdds up the materials of every item into one purchase list, ready to send to suppliers.
  • 05Options & alternativesOptional items and alternatives the client can tick on the shared offer; the totals update by themselves.
  • 06Progress billingInvoice the job in stages, by milestones or by the progress of each item, with retention and advance payments.
  • 07SchedulePlan the work on a timeline (Gantt) and see the planned spending curve.
  • 08Recurring itemsMonthly or yearly lines (subscriptions, maintenance, rentals) with their own total, kept apart from the one-off total.
  • 09Website calculatorAn estimate calculator for your website that turns visitors into requests.

Ready items with example prices.

Some of the items you get at signup. Prices are realistic examples for 2026, not market prices: change them to your own costs.

CodeDescriptionUnitUnit price
SE.01.001Monocrystalline 450 Wp module on pitched roof, aluminium railsModules and mountingpcs€311.03
SE.02.001Single-phase hybrid inverter 3 kWInverters and meteringpcs€1,150.00
SE.03.001LFP lithium battery 5 kWh, installedBattery storageset€2,300.00
SE.04.001DC run in 6 mm² solar cableSwitchgear and cablingm€9.06
SE.05.001Thermosiphon solar water heater 200 l, installedSolar thermalset€1,900.00
SE.06.001Grid connection application (Modello Unico / TICA)Design and permitslump sum€450.00
SE.07.001Module washing with demineralised water, per moduleO&M and monitoringpcs€6.00
SE.08.001PV installer, per hourTime and materialsh€42.00
“Solar energy” starter price list (Italy · EUR): 38 items and 5 templates. Example prices excluding VAT.

A template from the pack, calculated.

14 modules on a pitched roof, hybrid inverter, battery and grid paperwork.

AEditor grid
ExampleResidential 6 kWp PV system
No.DescriptionAmount
1
Modules€4,504.42
1.1Site survey and yield study€150.00
1.2chosen alternativeMonocrystalline 450 Wp module on pitched roof, aluminium rails€4,354.42
1.3alternativeFull-black 440 Wp module on pitched roof€4,830.00
2
Inverter and storage€4,070.00
2.1Single-phase hybrid inverter 6 kW€1,550.00
2.2Smart energy meter and Wi-Fi dongle€220.00
2.3chosen alternativeLFP lithium battery 5 kWh, installed€2,300.00
2.4alternativeLFP lithium battery 10 kWh, installed€4,300.00
3
Switchgear and cabling€1,446.80
3.1DC run in 6 mm² solar cable€271.80
3.2DC string box with isolators and SPD€320.00
3.3AC panel with breaker and SPD€280.00
3.4AC run inverter to panel, 3G6 mm²€160.00
9 more items in 2 chapters
BTotals bar
Work
€11,501.22
Taxable
€11,501.22
VAT 22%
€2,530.27
Total
€14,031.49
Yearly, recurring
€120.00
CPrint-ready PDF

Offer PDF, page 1

Residential 6 kWp PV system
Solar energy
@preventiv/calc 1.0.0
1 : 1
Example “Residential 6 kWp PV system” from the “Solar energy” starter pack: 20 items with the pack’s list prices and invented quantities, calculated live by the Preventiv engine 1.0.0.

Ready-made services for your website.

The visitor picks a service, enters the quantity and gets an indicative price; you get the request with a draft estimate.

  • 1
    Installed PV module€311.03 / pcs
  • 2
    5 kWh battery€2,300.00 / set
  • 3
    200 l solar water heater€1,900.00 / set
  • 4
    Panel cleaning€6.00 / pcs
CodeDescriptionUnitUnit price
SE.01.001Monocrystalline 450 Wp module on pitched roof, aluminium railsModules and mountingpcsALL 18,742
SE.02.001Single-phase hybrid inverter 3 kWInverters and meteringpcsALL 85,000
SE.03.001LFP lithium battery 5 kWh, installedBattery storagesetALL 165,000
SE.04.001DC run in 6 mm² solar cableSwitchgear and cablingmALL 473
SE.05.001Thermosiphon solar water heater 200 l, installedSolar thermalsetALL 165,000
SE.06.003Self-producer grid connection file with OSHEE and EREDesign and permitslump sumALL 45,000
SE.07.001Module washing with demineralised water, per moduleO&M and monitoringpcsALL 400
SE.08.001PV installer, per hourTime and materialshALL 1,200
“Solar energy” starter price list (Albania · ALL): 36 items and 5 templates. Example prices excluding VAT.

A template from the pack, calculated.

14 modules on a pitched roof, hybrid inverter, battery and grid paperwork.

AEditor grid
ExampleResidential 6 kWp PV system
No.DescriptionAmount
1
ModulesALL 267,388
1.1Site survey and yield studyALL 5,000
1.2chosen alternativeMonocrystalline 450 Wp module on pitched roof, aluminium railsALL 262,388
1.3alternativeFull-black 440 Wp module on pitched roofALL 301,000
2
Inverter and storageALL 298,000
2.1Single-phase hybrid inverter 6 kWALL 115,000
2.2Smart energy meter and Wi-Fi dongleALL 18,000
2.3chosen alternativeLFP lithium battery 5 kWh, installedALL 165,000
2.4alternativeLFP lithium battery 10 kWh, installedALL 310,000
3
Switchgear and cablingALL 82,440
3.1DC run in 6 mm² solar cableALL 14,190
3.2DC string box with isolators and SPDALL 22,000
3.3AC panel with breaker and SPDALL 18,000
3.4AC run inverter to panel, 3G6 mm²ALL 6,500
7 more items in 2 chapters
BTotals bar
Work
ALL 737,828
Taxable
ALL 737,828
VAT 20%
ALL 147,566
Total
ALL 885,394
Yearly, recurring
ALL 12,000
CPrint-ready PDF

Offer PDF, page 1

Residential 6 kWp PV system
Solar energy
@preventiv/calc 1.0.0
1 : 1
Example “Residential 6 kWp PV system” from the “Solar energy” starter pack: 18 items with the pack’s list prices and invented quantities, calculated live by the Preventiv engine 1.0.0.

Ready-made services for your website.

The visitor picks a service, enters the quantity and gets an indicative price; you get the request with a draft estimate.

  • 1
    Installed PV moduleALL 18,742 / pcs
  • 2
    5 kWh batteryALL 165,000 / set
  • 3
    200 l solar water heaterALL 165,000 / set
  • 4
    Panel cleaningALL 400 / pcs

Price your next job with Preventiv.

The free plan includes three estimates a month with every feature of the editor.