Cutting Energy Bills in Half with Smart Load-Shifting

If you’re looking for ways to reduce your energy bills, the solution might be to “load-shift”. One of our customers proved just how effective using energy-efficient systems can be. By combining a heat pump with battery storage and taking advantage of off-peak electricity rates, they managed to slash their energy costs by more than half.

Here’s how they did it:

The Breakdown:

• Total Energy Use in December: 1,187 kWh
• Standard Energy Cost: £308 for the month
• Actual Cost with Off-Peak Savings: £114.88

So, how did this customer achieve such impressive savings?

They took full advantage of a smart tariff from Octopus Energy, which provided electricity at just 8.5p/kWh between midnight and 5:30 am. By charging their batteries overnight, they were able to store low-cost electricity for use during the day. The stored energy was then used to power their heat pump during peak hours when electricity costs are higher.

In addition, they optimised their hot water heating system to run during off-peak hours, further enhancing their savings. By shifting when they used energy, they were able to reduce their overall electricity costs significantly.

*These savings are specific to this customer. Savings will vary dependent on solar system size, heat pump size, battery capacity & your chosen electricity tariff.

How Does This Strategy Work?

The key to these savings lies in the combination of battery storage and off-peak electricity tariffs. Battery storage allows homeowners to store cheap electricity when it’s available and use it later when rates are higher. Many energy providers, like Octopus, offer lower rates during the night, making it an excellent opportunity to charge your battery for use during the day.

In this case, the heat pump was powered entirely by the stored energy. Heat pumps are known for their efficiency because they use a small amount of electricity to transfer heat, making them far more efficient than traditional heating systems. When paired with battery storage, you can maximise the efficiency of your heat pump while minimising your costs.

Why Solar and Battery Storage Make a Difference

If you’re considering a more sustainable and cost-effective approach to managing your energy, pairing solar panels with battery storage can make a significant difference. With the right setup, solar panels generate electricity during the day, which can be stored in the battery for later use. This approach reduces your reliance on the grid, meaning you can avoid higher peak electricity costs.

In addition, with a well-sized solar system, you can even reduce your electricity usage during the winter months when heating demand is higher. A battery system ensures that even on cloudy days, you have access to stored energy without worrying about expensive electricity rates.

Make 2025 the Year You Take Control of Your Energy Bills

At GreenGenUK, we offer solar and battery storage systems starting from just £1,950, which are designed to work seamlessly with your heat pump. By adding a solar and battery storage system to your home, you can:

• Store cheap off-peak electricity to use during peak hours, reducing your overall energy bills.
• Rely less on the grid, especially during the colder months when your energy usage is highest.
• Enjoy year-round comfort while saving more money on your electricity costs.

It’s clear that with the right energy solutions, it’s possible to drastically reduce your monthly electricity bills. By pairing a heat pump with battery storage and solar power, you can take control of your energy usage and costs. This is a smart and sustainable choice for homeowners looking to improve efficiency, save money, and reduce their environmental impact.

Contact us today to learn more about how our solar and battery storage systems can help you save money on your energy bills in 2025.