David Koch’s five practical ideas for reducing household bills are to use utilities carefully, negotiate better service deals, cut avoidable fees, review money habits and reduce car costs. His PerthNow column was published on 7 January 2024; for energy decisions today, compare offers using your actual usage and check current government guidance for your state or territory.
What David Koch’s 2024 article recommends
Koch’s central idea is to look for recurring “financial leaks”: costs that persist because they go unnoticed, unreviewed or unused efficiently. His column groups its suggestions into five areas. They are practical prompts, not quantified guarantees of savings.
1. Use utilities wisely
Switch off lights, heating and cooling when they are not needed; reduce unnecessary use of energy-intensive appliances; and consider efficient lighting and water products where they suit your home. Avoid leaving devices on standby unnecessarily.
2. Negotiate a better deal
Review what you pay for services such as gas, phone and internet. Ask your provider whether a more suitable plan, discount or bundle is available, and compare the full terms before changing.
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- SAFETY YOU CAN TRUST WITH UL CERTIFICATION: With Emporia Energy, your home energy monitoring is safe, reliable, and certified. The Emporia Vue is UL Listed, meaning it has met rigorous safety standards for electrical products in the U.S. and Canada. This certification ensures that every component has been thoroughly tested to prevent hazards, such as overheating, short-circuiting, or fire, offering you peace of mind as you manage your home’s energy consumption.
- INSTALLS IN CIRCUIT PANEL of most homes with clamp-on sensors. Supports Single phase, Single-split phase, and 2-wire systems. 3-wire systems; 3-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta) are supported with an additional 200A sensor (sold separately).
- 24/7 ENERGY MANAGEMENT AND MONITORING: Automate, manage and control your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. PROTECTED BY A 1-YEAR WARRANTY.
- LOWER YOUR ELECTRIC BILL: Configure settings in the Emporia Energy App to automate energy management for time of use, peak demand, excess solar, and rewards programs. You can even see live reporting and invaluable savings opportunities instantly. Gauge real-time spending and get actionable notifications and automated energy management to help you reduce costs.
- REAL-TIME ENERGY DATA: REQUIRES 2.4 GHz WIFI WITH AN INTERNET CONNECTION to monitor energy use with iPhone / Android / Web app. Vue sensors collect energy data and are accurate from ±2%. The Vue is UL and CE Listed for your safety. 1 second data is only available in the app (when actively open) and retained 3 hours. Minute and hour data are retained in the cloud. 1 minute data is retained 7 days, 1 hour data is retained indefinitely. Export cloud data whenever you want in the app.
3. Cut avoidable fees
Review financial charges and recurring costs so you can identify fees that may be avoidable. Check bills and account terms rather than relying on memory.
4. Review financial habits
Look for costs and missed opportunities in routine money management—for example, free trials that keep billing after a trial period or savings-account rates that change if conditions are not met.
5. Reduce car costs where practical
Drive efficiently and consider carpooling, public transport or cycling when these options fit your circumstances.
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- ⚡ ENERGY MONITORING ANYTIME, ANYWHERE: Monitor your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. Light commercial 3 phase option available as a separate bundle. Protected by a 1-year warranty.
- ⚡ VARIOUS ELECTRICAL APPLIANCE MONITORING: Comes with 16 50A sensors to accurately monitor your air conditioner, furnace, water heater, washer, dryer, range, etc.
- ⚡ LOWER YOUR ELECTRIC BILL: SEM-Meter measures real-time spending and gets actionable notifications to understand where savings can be made, both to lower your electric bill and to conserve energy and protect the planet’s resources. Be an environmentalist.
- ⚡ REAL-TIME ENERGY DATA: Connect SEM-Meter device via 2.4GHz WiFi to monitor energy usage, with an accuracy range of 1%. View usage in real time through Android/Apple software. Statistics of power usage in now/day/week/month/year format: the validity period of hourly exported data is 90 days, and the exported data of day/month/year data is permanent, available at any time Export from application.
Why the article warns about small financial leaks
Koch’s column reported that a Finder survey of 1,090 people found 41% said they had made a financial blunder in the previous 12 months. As reported in the column, the most commonly cited examples included forgetting to cancel a free trial (17%), letting a gift card expire (14%) and exceeding data limits (13%). These are figures attributed to Finder by Koch, not independently verified here.
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesThe column also reported that 11% had lent money without chasing repayment, 9% had missed a bonus savings rate, and self-reported financial mistakes were more common among Gen Z respondents (66%) than baby boomers (16%). Koch said the difference between a bonus and standard savings rate could exceed 5%. Treat these as the article’s 2024 reporting, not as current measurements or a forecast of what any individual will save.
How to compare Australian energy plans now
Energy costs depend on how much a household uses, when it uses it, its location and the plan’s prices and conditions. Bills can include a daily supply charge as well as usage charges—commonly priced per kilowatt-hour (kWh) for electricity and per megajoule (MJ) for gas. Compare estimated total costs for the same period using your own usage; a discount headline alone does not show whether a plan is cheaper for you.
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- NATIVE HOME ASSISTANT & OPENCLAW AI: Experience seamless Native Home Assistant integration right out of the box—no firmware flashing or complex coding required. Featuring ✨NEW✨ OpenClaw Support, it enables AI-driven automation for smarter, real-time energy management and seamless smart home control.
- MAXIMIZE SOLAR & ZERO FEED-IN AUTOMATION: Designed for solar homes, the power monitor works with the Refoss app and Home Assistant to automatically use surplus solar power. Appliances like EV chargers, washing machines, and water heaters are powered during midday peaks, maximizing solar self-consumption and reducing low-value electricity feed-in to the grid. Optimizes usage and reduces bills.
- REAL-TIME MONITORING & ±1% ACCURACY: Monitor voltage, current, active power, and power factor of major appliances. Provides ±1% accuracy (200A: 2–200A; 60A: 1–60A) and ±2% at low current. Daily data stored up to 5 years and exportable. With no subscriptions or hidden fees, you get deep historical insights to help you identify every energy-saving opportunity and save 10–20% on monthly bills.
- SMART ALERTS & CIRCUIT-LEVEL CONTROL: Set usage targets for each individual circuit and receive instant alerts when appliances exceed normal consumption. Refoss app supports automation and peak management to optimize schedules, reduce peaks, and improve efficiency. Real-time electricity usage monitor for circuit-level insights.
Choose the comparison service for your location
The Australian Government directs residents of the ACT, NSW, Queensland, South Australia and Tasmania to Energy Made Easy; Victoria residents to Victorian Energy Compare; and WA and NT residents to their respective jurisdictional guidance. The government comparison services are free and independent. If you would rather stay with your current provider, Moneysmart advises calling to ask whether a cheaper contract suits your household.
Compare the whole offer
- Check the daily supply charge and usage rates, and compare them against your actual consumption.
- Review contract length, fees, payment arrangements, conditional discounts and what happens when the contract ends.
- If considering time-of-use pricing, check the retailer’s exact peak, shoulder and off-peak periods against your household’s routine. A tariff that rewards shifting use may not suit every schedule.
- Check whether a smart meter is needed. These are typically needed for time-of-use tariffs and generally needed for demand tariffs.
The government says comparing an offer takes about 10 to 15 minutes and that households can typically save hundreds of dollars. That is a general statement, not a promised saving for a particular household.
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Energy.gov.au’s general guidance estimates that heating and cooling account for about 40% of household energy use, hot water about 25%, appliances about 30% and lighting about 5%. Those broad figures are not a breakdown of an individual home’s energy bill. The same government guidance suggests changes such as:
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- TRACK ENERGY & CUT BILLS: Track power, voltage, current, and power factor within ±1% accuracy. Clear power usage and cost charts by minute/hour/day/month/year help you easily understand your energy use. Store up to 5 years of data and export hourly reports for deep analysis. Most users save 10–20% on energy costs by spotting energy hogs and getting accurate insights to cut their bills.
- 24/7 ENERGY MONITORING + SMART ALERTS: Real-time home energy monitoring from anywhere. Set custom alerts for unusual usage spikes and threshold breaches for total peace of mind. Catch issues early with no subscriptions, no cloud lock‑in, and no hidden fees — all built-in. Supports 2 main circuits (200A) + 16 branch circuits (60A), making it perfect for precise, circuit-level energy monitoring.
- MAXIMIZE YOUR SOLAR SAVINGS (HOME ASSISTANT): This solar energy monitor integrates with Home Assistant to detect solar surplus and automatically power EV chargers, water heaters, and other high‑use appliances. Stop wasting solar energy—use it yourself and cut your electricity bill faster. The perfect home energy monitor for solar homes.
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- Heat or cool only the rooms being used, block draughts and use blinds or curtains to manage heat.
- Wash full loads and use cold water where possible; turn off devices that do not need to remain on standby.
- Compare appliance running costs when replacing an item, rather than buying a replacement simply because it is marketed as efficient.
- Do not switch off fridges, freezers, security systems or medical equipment.
Energy.gov.au says that filling gaps to limit air leakage can cut an energy bill by up to 25%; the result depends on the home and the gaps. It also says a 4-star showerhead could save a family of four around $315 a year on water bills, with possible additional energy savings from heating less water. Good-quality LEDs use around 80% less energy than old-style bulbs. These are government guidance figures, not guaranteed results for every home.
The same page says fans can make people feel about 3°C cooler and cost around 2 cents an hour to run; adjusting heating or cooling by one degree changes energy use by 5% to 10%; and cold washing can use up to ten times less energy than a warm wash. These figures describe general examples. Actual consumption and savings vary with the home, equipment and usage.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to do if a bill is unaffordable or seems wrong
If you are having difficulty paying an electricity, gas, phone or water bill, contact the provider promptly. Moneysmart says you can ask about options such as an extension, instalments, Centrelink deductions, or utility rebates and vouchers. For energy bills, ask the retailer about a payment plan or hardship program.
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- SAFETY YOU CAN TRUST WITH UL CERTIFICATION: With Emporia Energy, your home energy monitoring is safe, reliable, and certified. The Emporia Vue is UL Listed, meaning it has met rigorous safety standards for electrical products in the U.S. and Canada. This certification ensures that every component has been thoroughly tested to prevent hazards, such as overheating, short-circuiting, or fire, offering you peace of mind as you manage your home’s energy consumption.
- INSTALLS IN CIRCUIT PANEL of most homes with clamp-on sensors. Supports Single phase, Single-split phase, and 2-wire systems. 3-wire systems; 3-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta) are supported with an additional 200A sensor (sold separately).
- 24/7 ENERGY MANAGEMENT AND MONITORING: Automate, manage and control your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. PROTECTED BY A 1-YEAR WARRANTY.
- LOWER YOUR ELECTRIC BILL: Configure settings in the Emporia Energy App to automate energy management for time of use, peak demand, excess solar, and rewards programs. You can even see live reporting and invaluable savings opportunities instantly. Gauge real-time spending and get actionable notifications and automated energy management to help you reduce costs.
- REAL-TIME ENERGY DATA: REQUIRES 2.4 GHz WIFI WITH AN INTERNET CONNECTION to monitor energy use with iPhone / Android / Web app. Vue sensors collect energy data and are accurate from ±2%. The Vue is UL and CE Listed for your safety. 1 second data is only available in the app (when actively open) and retained 3 hours. Minute and hour data are retained in the cloud. 1 minute data is retained 7 days, 1 hour data is retained indefinitely. Export cloud data whenever you want in the app.
If an energy bill appears incorrect, ask the retailer to review it. If you are not satisfied with the response, contact the energy ombudsman in your state or territory. Check current local assistance and eligibility: the Australian Government says the Energy Bill Relief Fund ended on 31 December 2025, and points households to state and territory support instead.
Sources and timing
Koch’s column was published by PerthNow on 7 January 2024. Its Finder figures above are attributed to the survey as Koch reported them. The energy-plan, efficiency and bill-assistance guidance here reflects Australian Government and Moneysmart pages reviewed on 8 October 2026; it is current guidance, not an update to Koch’s original column.
Quick Recap
- David Koch’s PerthNow column
- Australian Government: Switch to save
- Moneysmart: manage bills and compare energy plans
- Energy.gov.au: Quick wins to save energy
- Australian Government: energy rebates and assistance
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
