Can residential rooftop solar systems be connected to the SEC national power grid?

Yes, under Water and Electricity Regulatory Authority (WERA) guidelines, homeowners can legally interconnect certified small-scale solar systems with a bidirectional smart meter under the Net Metering scheme.

Saudi ArabiaUpdated for 2026housing

Saudi Residential Solar PV Cost & Savings Calculator 2026

Calculate residential solar PV rooftop system costs, monthly kWh generation, electricity bill savings under SEC tariffs, payback period, and 25-year lifetime return under WERA regulations.

Housing & Residential Savings & Deposits Innovation & Patents

Calculated Result

Estimated Annual Electricity Savings

3,029.4SAR

Calculator Inputs

Solar System Capacity (kWp)10 kWp

2 kWp50 kWp

Turnkey Cost Per kWp Installed (SAR/kWp)

SAR

Quick select:

Current Monthly Household Consumption (kWh)

kWh

Quick select:

Estimated Annual Electricity Savings

3,029.4SAR

Capital Payback Period

12.5 Years

Total Installation Cost

38,000 SAR

Monthly Solar Generation

1,402.5 kWh

25-Year Net Cumulative Return

37,735 SAR

Monthly Direct Electricity Bill Offset

252.45 SAR

It is recommended to engage an SEC-certified solar contractor to ensure compliant grid interconnection, bidirectional metering installation, and official technical compliance certification.

Calculated based on Saudi average solar irradiance metrics (5.5 peak sun hours/day) and standard Saudi Electricity Company (SEC) residential consumption tiers.

Official Statute: التنظيمات والضوابط الصادرة عن هيئة تنظيم المياه والكهرباء (WERA) لمنظومات الطاقة الشمسية الكهروضوئية الصغيرة وشبكة التوزيع بشركة الكهرباء السعوديةLast Verified: 2026-09-04

Calculation Methodology

Monthly generation is calculated as (Capacity kWp * 5.5 PSH * 30 days * 0.85 performance ratio). Bill offset savings are evaluated against the 0.18 SAR/kWh base tariff tier to determine capital payback timeline.

Frequently Asked Questions

The estimated simple payback period for standard residential rooftop solar installations across Saudi Arabia ranges between 5 to 7 years, delivering over 18+ years of pure electricity cost savings across a 25-year lifespan.