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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: 8.06 kWp on a semi-detached house

Illustrative, Klang Valley

Bill Reduction

76%

Annual Savings

RM 3,375

Payback

6.5 years (catalogue price RM21,999, estimate)

CO2 Offset

7.5 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 846 kWh a month pays about RM372 on the RP4 domestic tariff, before solar.

Monthly Bill (Before)

RM 372.34

Annual Cost (Before)

RM 4,468

Pain Points:

  • •About 846 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

8.06 kWp (13 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 91.11

Annual Savings

RM 3,375

ROI

about 15% simple annual return

Environmental Impact:

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

TNB Bill Breakdown Analysis

Before Solar

Energy charge (846 kWh imported)RM 228.75
Capacity chargeRM 38.51
Network chargeRM 108.75
Energy efficiency incentiveRM -21.16
Retail chargeRM 10.00
KWTBB (1.6%)RM 5.84
SST (8%, units above 800 kWh)RM 1.65
TotalRM 372.34

After Solar

Energy charge (508 kWh imported)RM 137.25
Capacity chargeRM 23.10
Network chargeRM 65.25
KWTBB (1.6%)RM 2.76
Solar ATAP export credit (at the Energy Charge)-RM 137.25
TotalRM 91.11

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