How Many Solar Panels Do You Need to Charge a Lightbulb?

Solar Power - All Night Long... A solar storage battery can provide solar energy day or night

Solar panel output depends on a wide variety of different factors, from panel efficiency, to the amount of panels in your system, to where you live in the UK, and many other things.

So why does it matter how much electricity our lightbulbs use? Well it has been stated by energy conservation groups that our lightbulbs account for 20% of our electricity bills – so how many solar panels do you need to power the lightbulbs in your home?

How Much Electricity Do Appliances Use?

Home Appliances Electricity Usage – kWh/year Cost Over Year
Fridge-Freezer 427 kWh £62
Plasma TV 658 kWh £95
Desktop PC 166 kWh £24
Electric Cooker 317 kWh £46
1 Lightbulb 109 kWh £12

To calculate the usage of 1 lightbulb we knew that a 60 Watt lightbulb would use up 0.06kWh of electricity per hour. We decided by looking at each of the seasons that 5 hours was a good average for the amount of time a lightbulb would be on each day. This worked out as 0.3kWh per day and 109kWh per year.

 

But Who Has One Lightbulb?

Nobody! We had a look online and decided that 9 lightbulbs is a good average amount of lightbulbs for many homes and bungalows. Accounting for all of those lightbulbs we can work out that these cost us upwards of £108 per year in electricity costs! AND that is if you remember to turn them off!

 

How Much Sun Does A Solar Panel Need?

You might think that solar panels need red-hot summer sunshine to work but this is not actually true, whilst solar panels are more efficient on clear sunny days they still produce electricity on cloudy, rainy, foggy or cold days.

On average across the whole year we get around 4 hours of bright clear sunshine a day, which equates to 1460 hours of sunlight across the year. (So to calculate your panels minimum output 4 hours of sunshine a day is a good place to start).

So with 9 lightbulbs in our home, running for 5 hours a day on average, this means we would need 981 kWh of electricity to power them for the whole year.

 

So, to figure out how much electricity we need from our solar panels we divide our lightbulbs electricity requirements by the minimum sunlight our panels will get each year:

981 kWh by / 1460 hrs of sunlight per year
= 0.67 KW’s

After this we must know the KW’s each of our solar panels can produce. So if we get a high efficiency 120W solar panel, this equals 0.12KW’s. So we divide the energy we need by the amount of energy each solar panel can produce to find out how many solar panels we need.

0.67KW / 0.12 KW
= 5.58 panels.

Which means that you would need 6 solar panels to provide the electricity needed for 9 light bulbs in your home for a whole year.

12-16 Panels

Most UK solar panel systems are made up of between 12-16 solar panels, averaging at around 3.5 KW’s for the whole system. So, if you opt for a standard solar panel array you wont just be saving on the 20% of your bill made up by your lights. You would be saving considerably on the costs of every single appliance.

How Many Panels Would Fit On Your Roof?

BUT! We Only Use Lightbulbs At Night!

 Well, most of us are out of the house during the day and most of us only use our lightbulbs in the evening… but thanks to solar storage batteries you can benefit from your solar electricity day and night.

A solar storage battery will store electricity generated by your panels during the day for use in the evening. As soon as the sun goes down and your panels stop generating, your solar storage battery would discharge the electricity it has stored across the day.

Battery manufacturers claim that you can cut your bills by a further 50% with a solar storage battery, as you would be buying less electricity back from the grid during peak hours.

How Much is Solar Storage?

4 Surprising Reasons Why UK Homeowners Are Turning To Solar…

solarandfam1
In the UK we pay more on our energy bills than most of Europe. On top of that our energy bills have been steadily rising over the last 20 years. It only makes sense that as the demand for energy grows so will the cost of our bills.

Can We Trust Our Energy Providers?

Many people do not know that recently the wholesale cost of energy has fallen for the energy companies but we as consumers have not seen the difference in our energy bills. We all need electricity and heating but the companies in charge do not seem concerned about providing a fair service at a fair cost.

So, What Can We Do?

Can our homes become our own personal power stations? well actually, many UK homes already have. With solar panels popping up all over you may have wondered why they are considered a really great investment.

One reason solar power has seen a boom in recent years is that the price of installing solar panels has come down massively. Solar panels are now more affordable than they have ever been. Here are four more of the best reasons for installing solar.

 

  1. Cut Electricity Bills in HALF

    Average estimates state that you can save up to 50% off of your yearly electricity bills with solar panels. You would also be protected against any future electricity price-hikes as you would rely less on energy companies by providing your own free electricity.

    You can save even more with a solar storage battery. With this you can store the electricity your panels make for use in the evening. This way you can use your free electricity during the night and spend less on bills.

How Much Could You Save?

  1. Tax-free Money For Solar

    The government still offers a tax-free incentive to homes with solar panels. You are paid a small rate for each unit of electricity that your panels produce… for 20 years. You should act quickly though as this scheme will not be in place forever.

    It is vital that you find a properly accredited solar installer otherwise you would not be able to claim the government scheme. There are many solar cowboys out there so you need to ensure that the company you choose is trustworthy, reliable and highly recommended.

  2. Increase The Value of Your Home

    Estate agents now consider solar panels as something that can add value to your home. This is because the many benefits of solar can make a home more desirable.

  3. Easy Peasy

    Once solar panels have been installed you can pretty much leave them to it. They last 20-30 years with little maintenance. So just sit back, relax and let your solar panels do the work.

If you want to avoid solar cowboys click on where you live on the map below to get a fast, free, online quote for solar panels in your postcode.

map

– Click Here For a Fast, Free, Online Quote –

 


 

Popularity rise in Solar Power, why?

Solar Power

Solar Power has grown incredibly in the recent years; with Britain now having 500,000 homes with Solar Panels, the business is booming! The general public are definitely opening their eyes to the brilliant benefits and opportunities that Solar Power has to offer.

 

Financial benefits

 Solar Panels obviously offer to cut down your electricity bills by becoming more dependent on solar power. The ever increasing prices of energy providers is clearly making people looking into Solar Power as it is an easy, cheap way of saving money. Also with the feed-in-tarrifs the government currently provides it makes it possible to earn up to £750 a year! Who doesn’t want extra money in their back pocket? From the financial side of things, Solar panels are definitely a great benefit to home-owners looking to save money.

 

Feel good factor

Solar Power is a clean, renewable energy which makes it GREEN! You can feel smug as you tell the world of how you produce clean energy which is potentially saving the Planet. Also speaking from personal opinion, there is nothing that makes you happier than seeing how much energy you’re producing, and there is nothing that makes me look weirder than grinning insanely when I see that electric bill cut down to size!

 The Buzz!

 There is massive spike in the amount Solar Power is making into the media recently. Various government projects getting behind Solar Power like how the U.S. Navy plan to beam down energy from orbiting Solar Panels. Or even how one of Britain’s biggest landmarks, Big Ben, could possibly be getting Solar Panels (Story here).



There is also gigantic leaps in the technological side of the Solar Panel world. With ‘mad’ scientists developing transparent solar panels, Solar panels that work better on cloudy days ! And even the revolutionary idea of the near possibility of being able to grow solar panels from BACTERIA. ITS ALIVE!!!

 With all these contributing factors, it’s no surprise that Solar Panels have been on the rise. There has never been a better time to get into the Solar Powered world, with so many people getting involved now, shouldn’t you as well? If anything you have read has interested you in Solar Panels, visit this excellent site here for a FREE quote on Solar Panels ! 


Links:

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