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如何计算Solar Panel Sizing

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Solar Panel Sizing Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

公式

Panels = Daily kWh / (Panel Watts × Peak Sun Hours × 0.80)

分步指南

  1. 1Calculate daily usage, divide by panel output accounting for efficiency
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

例题解析

输入
30 kWh/day, 300W panel, 5 peak sun hours
结果
Panels = 30/(300×5×0.80/1000) = 25 panels

常见错误注意事项

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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