In a recent LinkedIn post, Choo Ann NGOH shares a personal anecdote about dramatically reducing her household electricity bills, highlighting the power of strategic upgrades over simply cutting usage. The post details how a significant drop in her monthly electricity expenses led the national power company to investigate her meter for potential tampering.
Choo Ann NGOH recounts her experience, stating:
“Since July 2023, my electric bill was about RM650 – RM700 every month 😱😅”
Initially, she attributed the high costs to the comfort of her family at home. However, a strategic decision to replace older, non-inverter air conditioning units with inverter models marked a turning point. This change resulted in a steep decline in her monthly bills, dropping to between RM220 and RM260.
The Impact of Inverter Technology
The magnitude of the savings was so surprising that it prompted an inspection from Tenaga Nasional Berhad (TNB). Choo Ann NGOH explains the unusual intervention:
“The drop was so sudden and so significant that Tenaga Nasional Berhad (TNB) actually sent a team to my house in Dec 2025 to check if my meter was err tampered with! 🤦♂️”
According to Choo Ann NGOH, TNB even replaced the meter as a precautionary measure, despite it being the exact same model as the old one. Crucially, the reduced electricity consumption persisted even after the meter replacement, confirming the effectiveness of the air conditioner upgrade.
Applying Business Sense to Household Costs
Choo Ann NGOH draws a parallel between her home energy savings and business strategy, advocating for an ‘efficiency over effort’ approach. She critiques what she calls the “Garden Hose” approach in business, where existing resources are used without questioning their efficiency, leading to unnecessarily high costs. This is akin to her initial situation with non-inverter air conditioners in her new home.
The “Surgical Tap” vs. the “Garden Hose”
In her post, Choo Ann NGOH elaborates on this analogy:
“In business, we often use the “Garden Hose” approach – use existing resources but but but wondering why our costs are so high (I moved into a new home with existing non-inverter airconds lah)”
She contrasts this with a more targeted, efficient method, suggesting that investing in more efficient technology, like inverter air conditioners, yields better long-term results than simply trying to manage or reduce usage of less efficient systems. Choo Ann NGOH emphasizes that this upgrade was a step she should have taken sooner.
Seeking Further Insights from Fellow Entrepreneurs
Concluding her post, Choo Ann NGOH extends an invitation to her network of Malaysian entrepreneurs to share their own strategies for reducing electricity bills. She specifically requests practical tips and tricks, excluding the obvious suggestion to simply turn off air conditioners or any illegal methods.
As Choo Ann NGOH puts it:
“To my fellow Malaysian entrepreneurs: but but but what other tips / tricks / hacks that you use to reduce your TNB bill wor?🤷♂️ Anything and everything Except ‘hello CA, turn off your aircond lah’ plis 🙏 And only legal things plis 🙏”
Her experience serves as a compelling case study for the significant financial benefits achievable through smart, efficiency-focused investments, even in everyday household management.
📝 About This Content
This article is based on insights shared by Choo Ann NGOH on LinkedIn.
📅 Originally posted on March 7, 2026 | View original post on LinkedIn →