Solar Savings Calculator

Estimate Your Solar Savings in 30 Seconds

Quick answer: Estimate your Singapore landed-home solar savings in under 60 seconds. A typical 15 kWp landed-home system generates approximately 16,500 kWh annually, saves around S$4,800 per year at 2026 SP Group tariff rates, and pays back in 4–5 years. Enter your monthly electricity bill and roof type below for a personalised estimate from Rezeca's 17 years of installation data.
Get Your Solar Plan
1
Select your property type
2
Enter your average monthly SP electricity bill
S$
S$100 S$1,000 S$2,500 S$5,000
Roof orientation:
☀️

Your personalised savings estimate will appear here.
Select your property type above to get started.

Annual Savings
—
estimated per year on your electricity bill
Payback Period
—
years to recover your system investment
30-Year Net Return
—
total savings over full 30-year panel warranty
Cumulative Savings Over Time
Year 5
—
Year 10
—
Year 20
—
Year 30
—

Your Estimated System

Recommended size —
Est. system cost —
Annual generation —
Bill offset —
Monthly savings —

Environmental Impact

—
tonnes of CO₂ offset per year
—
equivalent trees planted annually
Over 30 years, your system avoids
—
tonnes of CO₂ emissions

* These are estimates based on Singapore's electricity tariff of S$0.2911/kWh (2026), SP Group export rate of S$0.2046/kWh, Singapore's average solar irradiance of 3.5 peak sun hours/day, and a system performance ratio of 80% (1,100 kWh/kWp/year). System cost is estimated at S$1,000–S$1,600/kWp. Self-consumption is assumed at 70% and export at 30%. Actual savings depend on your specific roof configuration, shading, daily consumption patterns, and prevailing tariff rates. Rezeca provides a detailed personalised ROI analysis as part of every free site assessment.

Contact

Get Your Custom
Solar Plan

Share your details in the form and we'll prepare a personalized solar proposal for your property — recommended system size, layout concept, estimated cost, and projected savings, etc.

Prefer to chat? Tap the WhatsApp icon below to reach our team instantly.
WhatsApp Us
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
The dawn of a
new energy era
Illuminate your building with Rezeca Renewables.
Singapore’s pioneer in residential and commercial solar installations since 2009.
UEN: 200920276K.
Copyright © 2026 Rezeca Renewables.
White crescent shape on a black background resembling a partial eclipse or crescent moon.
Company
Home
About
Maintenance booking
Contact
Services
Residential Solar
Commercial Solar
Panel Cleaning & Maintenance
Solar by district
Projects
Residential
Commercial
CSRs
Resources
Stories
Insights
FAQs
Calculator
Follow us
Find us
37 Jalan Pemimpin, #06-11, MAPEX 577177
+65 9839 9044
enquiry@rezeca.com
Support
General Contact:
+65 9839 9044
Technical Support:
+65  9170 5539

How much can solar save on a Singapore landed home? A 2026 worked example

At SP Group's Q3 2026 regulated electricity tariff of 34.78 cents per kWh (including GST), a rooftop solar system on a Singapore landed home typically pays back in about 4 to 5 years, then delivers essentially free electricity for the rest of its 25 to 30 year life. The table below shows indicative first-year savings and payback by property type, assuming about 70% daytime self-consumption, roughly S$0.26 per kWh for surplus exported to the grid under the Simplified Credit Treatment scheme, and an installed cost of S$1,200 to S$2,000 per kWp.

Property type Typical system Est. annual generation Est. year-1 savings Typical payback
Terrace house12 kWp~13,200 kWh~S$4,200~4.5 years
Semi-detached22 kWp~24,200 kWh~S$7,800~4.5 years
Bungalow30 kWp~33,000 kWh~S$10,600~4.5 years
Good Class Bungalow65 kWp~71,500 kWh~S$23,000~4.5 years

Figures are indicative estimates based on SP Group's Q3 2026 regulated tariff and the assumptions stated above, not a quotation. Payback assumes the household consumes enough electricity to use most of what the system generates. Homes that use more electricity during daylight hours, such as those with home offices, pool pumps, or EV charging, reach higher self-consumption and faster payback. Actual results depend on roof orientation, shading, and daily consumption. Rezeca provides a detailed personalised ROI analysis at every free site assessment.