วิธีการคำนวณ Solar Savings

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A solar savings calculator estimates annual financial benefit from generating your own electricity, based on system size, peak sun hours, and electricity tariff.

สูตร

Annual savings = kWh generated × Electricity rate | Cumulative savings = Annual × System lifespan (25–30 years)

คำแนะนำทีละขั้นตอน

1Daily generation = Panels × Wattage × Sun hours / 1,000 (kWh)
2Annual = Daily × 365
3Saving = Annual kWh × Electricity rate (self-consumed portion)
4Export tariff adds income from surplus electricity

ตัวอย่างที่มีคำตอบ

อินพุต

10 × 400W panels, 3.5 sun hours/day, £0.28/kWh

ผลลัพธ์

Daily: 14 kWh; Annual: 5,110 kWh; Savings ≈ £1,431/yr

คำถามที่พบบ่อย

What is Solar Savings?

A solar savings calculator estimates annual financial benefit from generating your own electricity, based on system size, peak sun hours, and electricity tariff. Use this calculator for accurate, instant results.

How accurate is the Solar Savings calculator?

The calculator uses the standard published formula for solar savings. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Solar Savings calculator use?

This calculator works with inches, kilowatts, watts. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Solar Savings calculator use?

The core formula is: Daily generation = Panels × Wattage × Sun hours / 1,000 (kWh). Each step in the calculation is shown so you can verify the result manually.

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