---
title: "System Builder — Size Your Own Solar Kit | GESPA Energy"
description: "Pick the appliances you'll run and instantly see the required PV power, battery capacity and inverter size. Choose brands and models, then create your order."
canonical: https://www.gespaenerji.com/en/sistem-kur.html
lang: en
dateModified: 2026-09-30
publisher: "GESPA Enerji"
---

[Home](https://www.gespaenerji.com/en/) / System Builder

# System Builder

Select your appliances; we calculate the required **panels, battery and inverter** capacity. Then choose brands and models and prepare your order.

Frequently Asked Questions

## About system setup

### How many panels and batteries does my cottage need?

Appliance power and daily runtime determine the requirement. Enter device quantities and hours in the System Builder to estimate daily kWh, panel kWp, battery kWh and inverter kW.

### How is off-grid inverter power selected?

The inverter must cover simultaneous loads and motor starting demand, and it must match the battery's system voltage (e.g. 48 V). The System Builder includes simultaneity and startup allowance to find the required power and only suggests models compatible with your battery.

### Should I choose LiFePO₄ or gel batteries?

LiFePO₄ offers deeper discharge (about 90%) and longer cycle life, with higher upfront cost but lower lifetime cost per kWh. Gel batteries cost less initially but have shorter life. The System Builder calculates with the LiFePO₄ battery from our shop; if you prefer gel, it is priced during the site survey.

### Sistem Kurucu'daki fiyatlar kesin mi?

Products sold in our shop, such as panels, batteries, cables and MC4 connectors, carry the same price as the shop, and you can add them to the cart straight from the builder. The inverter is sold on quote at its list price. The panel box, mounting structure and labour are estimates; the final amount follows in a written quote after a free site survey.

## Not sure?

Our engineer can review your appliance list and help size the system.

[Request a Free Survey](https://www.gespaenerji.com/en/iletisim.html)

---
Kaynak sayfa: https://www.gespaenerji.com/en/sistem-kur.html · GESPA Enerji · 0543 743 42 09 · info@gespaenerji.com · Örnek Mah. 1551 Sok. Yaşar Apt. No:10 İç Kapı No: Z01, Manavgat / Antalya
Tüm sayfalar ve ürünler: https://www.gespaenerji.com/llms.txt · Ayrıntı: https://www.gespaenerji.com/llms-full.txt