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How to Get a Zero Energy Bill Home

Once you’ve improved the energy efficiency of your home, go one step further and reduce your energy bills to zero by making the most of green technology.


Understanding Zero Energy Bill Homes

A zero energy bill home is one that capitalises on green technology to completely cut the need to pay for energy. Not only can green technology reduce energy bills to zero, they can reduce the carbon footprint of your household to zero too. Installing solar panels alone could cut the average energy bill by £935 each year and save 1.6 tonnes of carbon too.

House with solar panels connected to an electric vehicle

How to Reach Zero Energy Bills

Creating a zero energy bill home is about viewing your home in a holistic way. It starts by becoming more energy efficient. By improving your efficiency, you decrease your reliance on dirty grid energy and you spend less on your energy bills. 

As your energy consumption decreases, more of it can be covered by the free solar power from the panels on your roof. Generating your own energy further reduces your dependency on the grid’s dirty energy. 

Then, increasing your insulation ensures the energy use to heat your home isn’t wasted. 

The final step is to harness the clean solar energy you produce to heat your home and power your car, by investing in a heat pump and an electric vehicle.

White lighting bolt on a pink circular background

1. Reduce your energy consumption through efficiency.

White sun with a yellow lightning bolt in the middle on a circular yellow background

2. Install solar panels and a home battery.

White house outline with a blue lightning bolt in the centre and arrows pointing away from the roof on a circular blue background

3. Improve your home’s insulation.

White heat pump on a light blue circular background

4. Install a heat pump.

White car with a green lightning bolt in the middle on a circular green background

5. Swap to an electric vehicle.

Doctor with blue spiky hair and shiny glasses with writing saying The Energy Doctor Says:

“Insulation may not be as exciting as some other smart energy upgrades like solar panels and electric vehicles, but improving how well your home retains heat is critical. If you properly insulate your home, not only will it be warmer, more comfortable and cost less to heat – it will be future-proofed and ‘heat-pump ready’ too. Heat pumps rely on your home being well-insulated.”

Purple house graphic with ray of yellow light shining inside and pink arrows pointing towards the inside walls of the house

Exploring Passivhaus

The concept of a ‘zero energy bill home’ is similar to Passivhaus, also known as Passive House. It represents an innovative approach to building design that focuses on achieving unparalleled energy efficiency and comfort. 

The core principle revolves around creating a virtually airtight, super-insulated structure that minimises the need for conventional heating or cooling systems. By employing high-quality insulation, windows, and ventilation system, Passivhaus homes drastically reduce energy consumption. 

Through this meticulous design and construction, Passivhaus homes significantly cut energy demand, often reaching up to a 90% reduction compared to standard buildings. This remarkable efficiency ultimately results in minimal energy bills or, in many cases, no energy bills at all. It also leads to improved comfort and a drastically lower environmental footprint.

House with a solar panel and heat pump underneath a cloudy green sky

Green Technology: Home Improvements

For homeowners interested in retrofitting their existing properties with green technology inspired by Passivhaus principles, there’s good news: you don’t necessarily need to achieve Passivhaus standards to significantly reduce energy bills. 

Retrofitting involves integrating elements like solar panels, insulation, and heat pumps, to enhance energy efficiency. By adopting these measures, even without achieving the strict Passivhaus criteria, you can make considerable energy savings.

You don’t need to upgrade everything at the same time either. Making the swap to embrace each technology can still yield substantial results. This approach allows you to tailor your retrofitting efforts based on budget, available technology, and the specific needs of your home.

Loop Weekly Solar and battery electricity use on the left and Carbon calculator bar graph on the right

Creating Your Zero Energy Bill Roadmap

When retrofitting a home, the order you implement measures is crucial to make the biggest savings. Improving your energy efficiency first makes sense. Big savings, for example reducing your Phantom Load, are achievable through simple behaviour change. 

Installing solar panels next is also sensible as they have a large impact on carbon emissions and also pave the way for other measures, like heat pumps and electric vehicles. These require a large amount of electricity that could be offset by free, clean solar power. With that in mind, it’s generally sensible to install as many solar panels as you have room for as the panels themselves are relatively inexpensive.  

Consider how green technology could fit in with planned home improvements. A significant cost in any solar panel installation is the scaffolding. For households already planning work on their roof or a loft conversion, combining both measures could cut costs considerably – by as much as £2,000. 

To get a better understanding of your household’s journey to zero energy bills, Loop’s unique Solar Simulator and Carbon Calculator can help. By providing personalised insights and savings at each step, both in money and carbon terms, you can make informed decisions about where to make the best investments for your home.

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