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Features

Off-Grid System Design

Panel and battery capacity from the appliance list

Overview

System Sizing from the Appliance List

In the Off-Grid System Design module, the appliances to be powered are selected, daily energy demand is derived, and panel, battery and inverter capacity is calculated accordingly. Off-grid requests such as vineyard houses, highland homes or telecom sites are handled with this calculation.

PVAGE off-grid result and load analysis screen
Capabilities

What You Can Do

Load and System Parameters

  • Appliance library — a categorized ready-made list with search and filters
  • Custom appliances — add new devices by name, power, voltage and category
  • Realistic load calculation based on simultaneity and night-time usage intensity
  • Inrush (starting current) analysis — the device with the highest starting current is identified and the inverter is selected accordingly
  • Days of autonomy — reserve for days without sun
  • Gel or lithium battery selection, together with phase selection
  • Province-level PVGIS solar irradiation data

Calculation Outputs

  • MPPT configuration — the number of series panels is limited by accounting for the rise in open-circuit voltage (Voc) in cold weather
  • Line current, recommended fuse rating and cable cross-section by distance
  • Battery bank and a wiring diagram showing how batteries connect to each other and to the inverter
  • Daily production in winter, spring, summer and autumn, plus estimated annual production
  • Ready-made off-grid system packages and a quick calculation mode
  • Calculation rationale showing which assumption each result is based on
  • Saving scenarios and PDF report
Business Value

Business Value

For off-grid requests, battery and panel capacity is determined from the appliance list rather than rough estimates. Because assumptions for days of autonomy and simultaneity are recorded, questions raised later can be answered on a documented basis.

More Features

More of What PVAGE Does

Agricultural Energy Systems

Panel arrangement and fuse recommendations for solar irrigation based on pump power and well depth.

Learn more

Proposals & Contracts

Corporate proposal documents with materials, labour and margins; online customer approval and one-step contract generation.

Learn more

Reports & PDF Output

Proposals, proforma invoices and analysis reports with your logo and terms, in English when needed.

Learn more

Customer & Project Tracking

One customer card from lead to handover, with payment tracking and 13-stage project progress.

Learn more
Guide: How to Size an Off-Grid Solar Energy System
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