How to Reduce Electricity Bills Using the Right Cables and Wires
Cable world logo

No results Found

How to reduce electricity bills with right cables

How to Reduce Electricity Bills Using the Right Cables and Wires

Electrical installations play a key role in the overall energy efficiency of a home or business. Poorly designed or outdated systems can lead to significant energy wastage, which not only impacts the environment but also your bills.

By choosing the right cables and wires, you can improve your electrical efficiency and see a noticeable reduction in your electricity bills. In this guide, we’ll help you to understand your energy use and how upgrading your electrical infrastructure can contribute to cost savings.

Causes of High Electricity Consumption

High electricity bills can often be traced back to several key factors within your home or business. One of the primary culprits is inefficient appliances that consume more power than necessary. Additionally, poor insulation can lead to higher costs in heating and cooling as your systems work overtime to maintain comfortable temperatures.

Another significant factor is outdated electrical systems. Old wiring and associated components may not only be inefficient but also potentially dangerous. Addressing these issues can lead to more controlled and reduced energy consumption, effectively lowering your electricity bills.

How Electrical Systems Affect Energy Efficiency

Old or faulty wiring is a less obvious but equally significant factor contributing to high energy costs. Outdated wiring may not have the capacity to handle modern energy loads efficiently, leading to excessive heat production and power loss.

This not only increases consumption but can also pose safety risks. Similarly, faulty wiring can cause appliances to operate inefficiently, draw more power, and thus inflate your electricity bills.

Upgrading to modern, energy-efficient wiring systems and regularly checking for and repairing faults can help ensure that your electrical system contributes to rather than detracts from your home’s or even business premises’ energy efficiency.

Choosing the Right Cables and Wires for Energy Efficiency

Importance of Correct Electrical Cable Sizes

A key step to enhancing energy efficiency in any electrical system is choosing the correct cable size. Appropriate electrical cable sizes are crucial because they minimise energy loss across the system.

Cables that are too small for their intended load can cause excessive heat buildup and resistance, leading to wasted energy and potentially higher electricity costs. On the other hand, correctly sized cables optimise the efficiency of energy transmission, reducing unnecessary power losses and helping to lower energy bills.

When upgrading or installing new electrical systems, consulting with a qualified electrician to determine the right cable size is essential for both safety and efficiency.

Best Wire for Electricity in Your Home

Choosing the best wire for electricity in your home involves considering both the type and gauge of the wire. Here are a few options to consider:


cabling is designed for permanent installation within buildings, open air environments, underground, and even underwater settings. Find all technical data here.


N2XH is non-armoured power cables designed for fixed installation indoors, in concrete and in free air. However, it isn’t suitable for direct burial or installation in water. The N2XH’s LSOH construction makes this cable particularly suited to areas where, when subjected to fire, the emission of smoke and toxic fumes may create a potential threat to life, such as in homes or offices. Please see technical specifications here

H05Z-K - H07Z-K (2491B - 6701B)

H05Z-K/H07Z-K are single core, halogen free cables commonly used for panel wiring and a variety of other applications where flexibility is required.

The low smoke zero halogen design means this cable is suitable for installations where, when subjected to fire, the emission of smoke and toxic gases may present a risk to life. Please see full spec here.

H05Z1Z1-F (318*B)

H05Z1Z1-F is a flexible cord primarily used as general supply lead or for pendant lighting. The low smoke and zero halogen construction make this cable particularly suited to public areas such as schools, shopping centres, hospitals, and airports where, when subjected to fire, the emission of smoke and toxic fumes may create a potential threat to life. Check out the technical spec here.


The H07RN-F cable is the ultimate power partner for a wide range of applications, combining robustness, flexibility, and versatility. Its robust rubber outer sheath shields against abrasion, oils, chemicals, and UV rays, making it ideal for both indoor and outdoor usage. It is suitable for use in dry, wet, or oily conditions and also in explosive atmosphere environments.

See our full technical data sheet here.

Practical Tips to Reduce Your Electricity Bill

Inspect and Replace Old Wiring

Homes with wiring over 20 years old should be inspected by a professional. Older wires can degrade, leading to inefficiencies and safety hazards.

Consider Rewiring with Larger Gauges

Using wire with a larger gauge than strictly necessary can reduce energy loss, especially over longer distances within the home.

Install Dedicated Circuits

For high-energy appliances like HVAC systems, ovens, or washing machines, consider installing dedicated circuits. This can optimise power delivery and efficiency.

Use Advanced Cable Materials

Invest in cables with higher quality insulation and conductive materials, like those meeting the latest IEC standards, to reduce resistance and energy wastage.

Identifying and Fixing Faulty Wiring

Faulty or old wiring is not just a safety hazard but also a common cause for high electric bills. Here's how you can spot signs of bad wiring and take steps to fix them:

Steps to Fix Faulty Wiring

  1. Consult a Professional: Electrical work can be hazardous. It’s recommended to hire a licensed electrician to inspect and repair any faulty wiring.

  2. Upgrade Wiring: If your home has outdated wiring, consider upgrading to current standards to improve efficiency and safety.

  3. Increase Circuit Capacity: Installing additional circuits or upgrading circuit breakers can help manage load better and reduce risks of overheating.

Addressing these issues not only helps reduce your electricity bill by ensuring your electrical system runs more efficiently but also enhances the safety of your home or business.

FAQs on Saving Electricity with the Right Wiring

How can I reduce my electricity bill at home?

Reducing your electricity bill at home can be achieved through several strategies involving energy-efficient wiring and regular maintenance. Here are some effective tips:

By following these steps, you can significantly reduce electricity bills and improve the overall energy efficiency of your home.

Do larger or smaller gauge wires affect my electricity bill?

Yes, the gauge of wire used in your home's electrical system can have a direct impact on your electricity bill. Electrical cable sizes are crucial in determining the efficiency of your power distribution.

Larger gauge wires have a thicker cross-sectional area, which reduces resistance and allows electricity to flow more freely with less heat generation. Using adequately sized wires for high-power appliances can improve efficiency and help save on electricity.

On the other hand, using wires that are too small for the load can cause excessive heat build-up due to higher resistance, which can lead to energy loss and higher utility bills.

Can old wiring use more electricity?

Yes, especially if the existing wires are not up to current standards and are undersized for their load.