Energy Key logo
Menu
Energy Key Group · مفتاح الطاقة

Solar engineering that starts from your bill

Systems for homes, farms, factories and commercial projects across Saudi Arabia, sized on official tariffs and your city's yield, and reviewed by an engineer before any offer.

Find your solar system size and how much you can save

Enter your bill. We work out consumption from the official slabs after separating the fixed charge and VAT.

How we reach the number

Dividing by one price gives the wrong consumption when there are slabs and fees. These are our steps, all stated and adjustable.

Unpack the bill

We remove VAT and the breaker based fixed charge, then reverse the official slabs to reach your consumption.

Spread use over the year

An August bill is unlike a January bill, so we build a seasonal curve and separate day and night load.

Calculate your city's output

PVGIS monthly data for thirty Saudi cities, after technical, soiling and shade losses.

Compare three sizes

Economy, balanced and highest possible coverage, within area, breaker and net billing limits.

Tariffs change on 1 January 2027

The Saudi Electricity Regulatory Authority announced a new tariff with a higher breaker based fixed charge. The calculator applies effective dates and shows your bill on both.

Read the details
ResidentialUntil 31 Dec 2026From 1 Jan 2027
Up to 6,000 kWh18 halalas21 halalas
Above 6,000 kWh30 halalas33 halalas
Monthly charge10 to 30 SAR70 to 100 SAR

What we commit to

  • No zero bill promise. The fixed charge and night use remain, and we show them clearly.
  • Facts apart from estimates. Every assumption is stated, and you can change it and see the effect.
  • An engineer reviews before any offer. The calculator gives an estimate, not a final design.
  • Documented figures only. No achievement, certificate or project photo is published before it is documented and approved.

Calculators

Seven independent calculators, each with its own inputs and stated assumptions.

Ready for a quote based on your site?

Send your request with the calculator result, and the engineering team reviews it.

Request a quote