Benefits of renewable energy for your home

What is renewable energy and how does it work?

Renewable energy is power derived from sources that nature continuously replenishes: the sun, the wind, rivers, the earth's heat, and biomass. Unlike coal, oil, and natural gas, which release large quantities of carbon dioxide when burned, renewable sources emit little to no greenhouse gases during operation. The main types include:

• Solar energy
• Wind energy
• Hydropower
• Geothermal energy
• Biomass energy
• Tidal and wave energy

Renewable energy currently supplies less than 16% of total global energy consumption, with fossil fuels still accounting for close to 80% of worldwide energy use. However, that share is changing rapidly, and the speed of change has direct consequences for your home and your bills.

Environmental benefits

Technologies such as solar panels, wind turbines, and heat pumps generate power with little to no direct carbon emissions during operation. This stands in sharp contrast to fossil fuel combustion, which releases not only carbon dioxide but also harmful pollutants.

Buildings account for approximately 33% of all CO₂ emissions in the European Union, meaning that household-level choices carry real weight. Installing a heat pump instead of a gas boiler, or powering your home with solar electricity, reduces your direct contribution to those emissions while contributing to cleaner local air quality.

Why renewable energy adoption is accelerating

Global energy demand is climbing, fuelled by population growth, the shift to electric vehicles, and the explosion of data-hungry technologies. Renewables offer the most practical way to keep up with that demand without making the climate crisis worse.

The scale of the shift already under way is striking. Between 2015 and 2024, renewable electricity capacity grew by 140% — nearly six times faster than fossil fuels over the same period. Under the European Green Deal, the EU has set binding targets to cut emissions by almost half by 2030 and reach full climate neutrality by 2050.

To help homeowners make the transition, governments across Europe are introducing grants, incentives, and updated building regulations. Acting sooner rather than later means you get ahead of rising energy prices and avoid being caught out when the rules change.

What renewable energy means for your home

1. Lower and more predictable energy bills

The economics of renewable energy have shifted decisively. More than 90% of new renewable energy projects are now cheaper to build than fossil fuel alternatives. Solar energy and offshore wind are respectively 41% and 53% cheaper than comparable fossil infrastructure.

Unlike fossil fuels—which are vulnerable to geopolitical tensions and supply disruptions—home-generated renewable electricity offers long-term price stability once installed.

For homeowners, this means:

• Lower and more predictable monthly energy bills
• Protection from future energy price volatility
• Improved Energy Performance Certificate (EPC) ratings
• Increased property value
• Access to grants and incentives

2. Better energy efficiency at home

Energy efficiency means obtaining more useful output from every unit of energy consumed. Heat pumps are particularly effective in this regard.

A modern air-to-water heat pump extracts thermal energy from outdoor air and transfers it indoors. With a seasonal coefficient of performance (SCOP) around 4, it delivers roughly four units of heat for every unit of electricity consumed—far more efficient than a gas boiler.

The Daikin Altherma 4 H operates efficiently down to -28°C and delivers water temperatures up to 75°C, making it suitable even for older homes with traditional radiators.

Heat pumps also:

• Require less maintenance than combustion systems
• Integrate easily with smart home controls
• Enable real-time energy monitoring

For homeowners, this translates into reduced bills, improved comfort, and lower carbon emissions.

3. Reduced dependence on fossil fuels

Around 80% of the global population lives in countries that import fossil fuels, making them vulnerable to price shocks whenever geopolitical tensions or supply disruptions occur. European homeowners experienced this reality acutely in recent years when natural gas prices surged to record highs.

Renewable energy is generated from local, naturally available resources found in every country. Solar energy touches every rooftop; wind blows across plains, hills, and coastlines. By generating part of your energy on-site, through solar panels, a heat pump drawing on outdoor air, or a combination of both, you reduce your household's exposure to imported energy price volatility. Trade instabilities and market turmoil cannot impact the use of renewable sources in the same way they affect fossil fuel availability and pricing.

Every unit of energy you generate yourself is a unit you do not buy from the grid at whatever price prevails at the time. This energy independence is one of the most compelling long-term advantages of renewable energy for homeowners.

Solar panels and heat pumps: a powerful combination

How solar panels work to produce electricity

Solar panels use photovoltaic (PV) cells to convert sunlight into electricity. With no moving parts, they operate quietly, produce no direct emissions while generating electricity and require very little maintenance. Most solar panels are designed to last 25 years or more.

Benefits of solar panels

Solar panels are one of the few renewable energy technologies that allow homeowners to generate their own electricity directly at home, turning a rooftop into a personal power station. Beyond individual bill savings, residential solar contributes to wider decarbonisation goals, as buildings account for 36% of energy-related greenhouse gas emissions in the European Union. With the cost of solar panels falling significantly over the past decade, solar power has also become one of the most affordable ways to generate electricity for your home.

Installation process and typical return on investment

Solar panel output varies across Europe. Systems installed in southern regions generally generate more electricity than those in northern regions due to higher annual sunlight hours. However, solar panels can provide significant energy savings across Europe when correctly sized and installed.

Payback periods typically range from eight to ten years, depending on location, system size, and available incentives.

Pairing solar panels with a heat pump significantly improves return on investment. Solar electricity can cover much of the heat pump’s energy consumption, delivering renewable heating and renewable power from one integrated system.

Daikin's support for solar-integrated systems

Daikin heat pumps are designed to integrate with solar PV installations, using compatible controls and energy management systems to automatically optimise operation based on available solar generation. When solar production is high, the system prioritises using that free electricity, reducing the amount drawn from the grid. With the Daikin Onecta app, homeowners can monitor both solar generation and heat pump energy consumption in real time, making it easy to manage their integrated system from anywhere.

Why wind power still matters

Although residential wind turbines are rarely practical, wind power remains an important part of Europe's renewable energy mix. Large-scale wind farms generate a growing share of electricity in many European countries, helping reduce reliance on fossil fuels and supporting a more resilient, low-carbon energy system.

How home battery storage maximises renewable energy

One of the biggest challenges with renewable energy is that solar panels generate the most electricity during the day, when many homeowners are away from home. Home battery storage helps overcome this by storing surplus solar energy for use later, such as in the evening when household electricity demand is typically higher. This increases self-consumption of renewable electricity, reduces reliance on the grid and helps make renewable energy more reliable.

Battery costs continue to decline as manufacturing scales up and technology improves, making residential energy storage systems increasingly affordable for homeowners installing solar panels. When paired with solar panels and a heat pump, a home battery can significantly improve energy independence by capturing daytime solar generation for evening use and providing backup power during grid outages.

Looking ahead, advances in energy storage, including hydrogen systems and next-generation battery technologies, promise even greater capacity and flexibility, further supporting the growth of renewable energy in homes and across the wider energy network.

Supporting a growing green economy

Renewable energy has emerged as a major driver of job creation, with the sector already employing almost 35 million people worldwide and continuing to expand rapidly. For every euro invested in renewable technology, three times as many jobs are created compared to the fossil fuel industry. For homeowners, this growth has a direct practical benefit: an expanding pool of certified installers and maintenance technicians means professional support is increasingly accessible in every European region.

Common questions about renewable energy

1. Is renewable energy too expensive?

Over 90% of new renewable electricity schemes are now cheaper than fossil fuel alternatives, and European grants reduce upfront costs for homeowners further.

2. Does renewable energy only work in warm, sunny climates?

No. Heat pumps can operate efficiently in outdoor temperatures as low as -28°C, while solar panels generate electricity across Europe, including northern regions with lower annual sunshine levels.

3. Is renewable energy reliable?

Yes. Modern grid management, energy storage and geographically distributed renewable generation help balance the variability of solar and wind. For example, Denmark generated 54% of its electricity from wind in 2023, the highest share of any country in the EU, demonstrating that high renewable penetration is entirely feasible with the right infrastructure.

4. Is installing renewable energy disruptive?

Not usually. Most residential solar panel and heat pump installations are completed by certified professionals within one to two days, with minimal disruption to everyday life.

How Daikin supports the transition to renewable heating

Developing more sustainable heating and cooling solutions

As part of its Environmental Vision 2050, Daikin is working towards net-zero greenhouse gas emissions across the entire product life cycle by 2050. Alongside improving the energy efficiency of its heating and cooling solutions, the company is investing in technologies that support the decarbonisation of homes, including heat pumps, lower-global-warming-potential refrigerants and energy management solutions.

Daikin heat pumps are designed to help homeowners reduce the emissions associated with heating while integrating seamlessly with technologies such as solar PV systems. Compatible controls optimise operation based on available solar generation, helping homeowners make greater use of self-generated electricity.

Supporting homeowners beyond installation

Choosing the right system is only one part of the journey. Daikin supports homeowners through a network of trained installers and digital services that help simplify installation, operation and maintenance.

The Stand By Me platform provides long-term support after installation, while the Onecta app allows homeowners to monitor and manage their heating system remotely. For those looking for an installer, Daikin's installer matching service helps connect homeowners with certified professionals across Europe.

Conclusion: Is renewable energy right for your home?

The advantages of renewable energy for homeowners are clear and increasingly within reach: lower bills, greater energy independence, improved indoor comfort, and a meaningful reduction in household carbon emissions backed by verifiable data. With renewable electricity now the most affordable generation source in most of the world and European government incentives actively supporting the transition, the conditions to act have rarely been more favourable. Whether your starting point is a heat pump, solar panels, or an integrated system combining both with battery storage, the technology is proven, the economics are sound, and certified professional support is widely available.

Key takeaways

• Renewable energy reduces household bills by generating energy on-site and protecting homeowners from the price volatility of imported fossil fuels.
• Heat pumps deliver approximately three times more thermal energy than the electricity they consume, making them significantly more efficient than gas boilers for home heating.
• Solar panels combined with a heat pump provide both renewable heating and renewable electricity from one integrated system, with residential payback periods in Europe currently below eight to ten years depending on location, system size, and available subsidies.
• Over 90% of new renewable energy projects in elecricity generation are now cheaper than fossil fuel alternatives, and European government incentives improve the financial case further.
• Daikin is investing heavily in heat pump innovation and European manufacturing to accelerate the transition to low-carbon home heating.