Solar Panels VS Heat Pumps: Complete Analysis

Solar panels can generate electricity, but heat pumps work to heat your home and water. Both of these have huge differences but work in a slightly similar way because they use electricity and only work specifically. 

More likely, solar panels and heat pumps are both easy to install because they are MCS certified and available in free designs.

Both heat pumps and solar panels are common in the UK, and there are so many reasons to form a key part of the UK government’s plan to get net zero in 2050.

If you’re considering a heat pump, explore the Boiler Upgrade Scheme to see whether you could qualify for financial support towards installation.

Solar panels VS Heat pumps

Solar panels are the best choice for your home to reduce energy costs, consumption bills, and get independence from grid electricity. 

But heat pumps are a more sensible choice to replace gas and LPG systems and the best alternative for low carbon emissions. 

They are not directly related to each other, but installing them is a good decision to generate electricity with solar panels to use by heat pumps. There are many annual benefits to powering your home.

	Solar panels	Heat pump
Primary job	Generate electricity	Heat your home and hot water
Energy source	Daylight	Heat from the air, ground or water
Uses electricity?	Generates it	Yes
Replaces a boiler?	No	Usually
Typical domestic installation cost	Around £6,000–£9,000 for a 4–5kW system	Commonly around £7,000–£13,000 for an air source system
Main property requirement	A reasonably suitable, unshaded roof	A properly designed heating system and suitable outdoor space
Works in winter?	Yes, but with lower output	Yes
Can the two work together?	Absoutely	Also absolutely

Difference between Solar panels VS heat pumps

Solar panels contain photovoltaic cells, which solar PV panels and generate electricity from daylight. 

This electricity is usable for your home appliances, and you can also attach storage batteries to store electricity, and also you can export to the grid according to the tariff.

Solar panels can generate electricity in cloudy weather and have weather-resistant technology, but heat pumps are not able to generate electricity. They only use the existing heat from the outer side and transfer it into your heating system.

Solar panels can easily reduce electricity purchasing amount and reduce electricity bills, but heating pump changes and transforms heat in your home. If you want to install both of them, then it’s a perfect combo to reduce fossil fuels and also reduce grid electricity use.

How do Solar panels work?

Solar panels have photovoltaic cells and also produce DC, and there are inverters which are connected to convert DC current into AC. This is very easy to use for your household appliances, and solar panel electricity is the most amazing source for your home.

Surplus can occur if the solar panels generate more than demand, so:

• You can export electricity to the grid.
• Attach batteries to store electricity.
• Divert compatible appliances or a heating system.

It also depends on how much energy all the panels are going to generate in a season, what the roof direction is, whether you have shading on the roof, what your location is, and what the exact size is. All of these things are very considerable, and a south-facing roof produces more annual performance, but east and west are still perfect to install for amazing results.

It is not necessary to attach storage batteries, but these are very helpful for you to have electricity for later use. These are only helpful to increase the cost, which is automatically not delivered for better returns.

How does a heat pump work?

They can generate heat from low-temperature sources on the outside and raise it to a helpful temperature through a refrigeration cycle.

Heat pumps require electricity and good design of heat ones and be perfect at delivering several units of heat, and each of the unit consider model electricity to consume. Because there are some factors which included to work in actual efficiency :

• Outside temperature 
• Heating temperature and flow
• System design and quality 
• Underfloor heating capacity and radiator  
• Insulation and heat loss 

Heat pumps are way better than solar panels because they are the most efficient to work with good temperature supply and lower their ability for long-term.

Most of the homes require radiator systems and need improvement of installation or to change pipework. Boiler replacement is also normal because the hot water standard requires more space to be held.

A complete room-by-room heat loss calculation matters a lot more than heat pump excellence design and structure. Exact size and the number of bedrooms also matter.

What is the cost of solar panels VS heat pump?

4 to 5KW domestic solar installation varies by location, but an estimated cost can be defined as 6000£ to £9000 which is also considered. The final price is also dependent on roof axis specifications, scaffolding, and inverter twice, with electrical work or battery storage being optional but also increasing the installation or initial price further.

In solar panels vs heat pumps, which will save more money?

There is a difference between panels and heat pumps in terms of reliability. Solar panels can reduce energy bills because they can replace electricity from the grid and directly generate electricity through sunlight. You can also export electricity to the grid.

A 425 kW system of panels is estimated to be available with a cost of 6000£ to 9000£. The financial performance is also dependent on

• Annual production 
• Electricity usage 
• Import and export tariffs in the UK 
• Add storage batteries 

Heat pump savings are better for you to swap on heating fuel.

Heat pumps can reduce running costs because they can replace expensive electric resistance heating systems and oil or LPG with comparatively modern gas boilers.

The performance results depend on the heat pumps, and their efficiency also depends on the prices of gas and electricity, which are the most considerable.

Heat pumps are lower in cost to run than solar panels; the system designs and tariff decide the performance results of the system.

Solar panels primarily save electricity generation and its consumption. Heat pump cause to run according to the home demand and heat requirements amount, and the efficiency of the system supply.

Can solar panels power heat pumps?

Solar panels can power heat pumps but only partially.

Heat pumps can easily use electricity which is generated through panels, and the panels are using these lights also for the household appliances and heat pumps as well.

This helps to reduce the amount drawn from the grid, and heat pumps use the energy even in cold weather according to the heat demand, especially when it’s highest. 

Solar panels can generate electricity even on bright days and months because at that time the demand is lower.

It is a very useful combo, especially during spring and autumn. Solar electricity is very helpful to power hot water production even in bright periods.

What to install if there are solar panels VS Heat pumps?

If you want to install solar panels or a heat pump, then you have to set the target you want to achieve and also consider the cost, which is valuable for you.

If you want to choose solar panels, this will be done

Good roof for solar potential. 

Good if you want to reduce electricity bills 

Existing heating system is needed for your home 

A meaningful amount can save of electricity during the day hours 

Electric vehicle use and charging

If you want to choose a heat pump, this will happen 

boiler needs replacement 

Using a heating system with oil, LPG or electric heating 

To reduce fossil fuel heating 

Suitable home upgrade required 

Need qualified grant support 

If you want to install both

Mollify your heating system and consider it to generate electricity

Roof and heating system are more suitable entirely

Consider starting work if investment fits with your budget

If your home is not well insulated or you want to reduce heat loss, then attention is required to install both systems. 

Which system is better for the environment?

These technologies are very helpful to reduce carbon emissions, but also in different ways. 

You can use all panels to reduce dependency on the grid and use renewable electricity. 

Heat pumps are directly used to replace the combustion of fossil fuels with electricity. Their emissions are also considered in terms of carbon density, which is associated with electricity supply.

Solar panels vs heat pumps: both are a strong low-carbon combination because they are important depending on the property size, and suitable equipment is good enough to choose a perfect design.

What are the challenges for choosing the best installer? 

To consider the best installer, there are proper heat loss calculations. According to this, you can hire the best installer for your home.

Good installers always check some calculations about your home size, electricity demand and what is best for your budget. You can consider lower-cost companies with their quality experience and according to the reviews.

Installation and disruption procedures

For solar panel installation, you can directly install them on the rooftop, and you can also connect them with the inverters to consume units easily, and this installation is our last day in two days. 

For the heat pump installation, some requirements are essential, such as pipework, graded radiators or internal system redesign. Their installation can last for multiple days and cause more disruptions for your home.

Best of Solar panels VS Heat pumps

Now we get a detailed analysis of Solar panels VS Heat pumps:

Efficiency

Heat pumps

are the most efficient at producing a good amount of heat, as they have both electricity and heat.

They can extract heat from the outside air; with modern boilers, they can achieve 90% efficiency, which is more than enough for a home.

Solar panels

On the other hand, solar panels have long-lasting efficiency if the weather is clear and the sunlight falls properly on the surface of the panels to produce more, and are 28% more efficient to install. They also help to achieve efficiency levels of 23%.

Durability 

Heat pumps 

Are highly recommended for durability and no need to maintain as much, so typically they are long-lasting for 20 years, and you will never feel the need to replace them earlier.

Solar panels 

Generally have a 25- to 30-year warranty because after that they can only produce electricity, and that is also enough to keep your home powered.

Conclusion: Solar panels VS Heat pumps

If there are solar panels VS Heat pumps, then different problems can be solved with solar panels and heat pumps because they are a better choice as a combination to power your home and to prevent.

If you are going to choose panels as a priority, then it’s a generous decision to produce electricity and reduce grid consumption. Or, if you are using heat pumps as a priority, then fossil fuel replacement is perfect for the heating system.

When your property allows you, you have to install both of them because a properly designed heat pump helps to heat your home and also solar panels for electricity consumption and bills.

Their costs are different, and they are differently durable to fix multiple home solutions, including budget-friendly costs.

FAQs: Solar panels VS Heat pumps

Is it possible to run a heat pump without solar panels?

Yes, this is possible because there are many heat pumps which draw electricity from the grid supply, and there is no need for solar panels to be installed even in future.

Do solar panels run heat pumps during a power outage?

No, not really, because a standard grid connection with a solar system can easily switch off during a power outage for safety reasons. But in the case of installing storage batteries, this can also be possible with additional equipment.

Are panels and heat pumps disruptive during the installation process?

Solar system installation requires a focus on the rooftop with a complete electrical system with zero disruption and quick a day installation.

But a heat installation involves multiple things such as an outdoor unit, hot water cylinder pipework and radiator upgrades, and this is the cause of major disruption and can take more than a week to be installed.

Is a heat pump worth it in cold weather?

Yes, an air source can easily extract heat from the cold air, and its performance or efficiency can fall as the temperature drops; the efficiency will also fall, so it’s good to check on sizing and system design because these are the basics.

Do heat pumps get power through solar panels?

Yes, a solar panel system can consume power and also generate electricity, which heat pumps can be powered through. Solar panels are good enough to power heat pumps, and they are very eco-friendly and worth it in the UK.