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Modeled engineering scenario. Modeled engineering scenario. Customer, commissioning, bill and media evidence are not registered. Results are illustrative and require site-specific validation.
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Illustrative Residential Scenario

Illustrative scenario: 10.54 kWp on a terrace house

Illustrative, Klang Valley

Bill Reduction

77%

Annual Savings

RM 4,812

Payback

5.4 years (catalogue price RM25,999, estimate)

CO2 Offset

9.8 tonnes/year

Trexon Energy Team profile photo - Solar Installation Specialists
· Solar Installation Specialists

The Challenge

Illustrative scenario, not a Trexon project: a household using about 1,107 kWh a month pays about RM521 on the RP4 domestic tariff, before solar.

Monthly Bill (Before)

RM 520.64

Annual Cost (Before)

RM 6,248

Pain Points:

  • •About 1,107 kWh a month, mostly daytime and evening air-conditioning
  • •RP4 domestic tariff: 27.03 sen/kWh energy charge plus capacity and network charges
  • •Wants to cut the bill without relying on export income

The Solution

System Size

10.54 kWp (17 x Jinko 620 W panels)

Installation Time

1-2 days on site (whole process about 6-10 weeks including approvals)

Solar Panels:

Jinko 620 W N-Type

Inverter:

Solis, Huawei or Sungrow (your choice)

Special Features:

  • Solar ATAP application handled by Trexon
  • Estimate assumes 3.5 peak sun hours and 40% of generation used at home
  • Export credited at the Energy Charge for 10 years; unused credit is forfeited each month

The Results

Monthly Bill (After)

RM 119.68

Annual Savings

RM 4,812

ROI

about 19% simple annual return

Environmental Impact:

9.8 tonnes/year (0.740 kg CO2 per kWh Peninsular grid factor, Suruhanjaya Tenaga, 2024 (provisional))

TNB Bill Breakdown Analysis

Before Solar

Energy charge (1,107 kWh imported)RM 299.14
Capacity chargeRM 50.35
Network chargeRM 142.21
Retail chargeRM 10.00
KWTBB (1.6%)RM 8.03
SST (8%, units above 800 kWh)RM 10.90
TotalRM 520.64

After Solar

Energy charge (664 kWh imported)RM 179.48
Capacity chargeRM 30.21
Network chargeRM 85.33
KWTBB (1.6%)RM 4.14
Solar ATAP export credit (at the Energy Charge)-RM 179.48
TotalRM 119.68

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