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How Many Solar Panels And Batteries Do I Need?

Are you presently considering adding a solar system to your home? With several homeowners in the UK using solar now, many more are realizing the numerous benefits they stand to derive by getting one. Therefore, if you’re thinking about adding the system to your home but do not know where to start, you’ve come to the right place.

Here, we’ll help you calculate the number of solar panels and batteries you’ll need to power your home. Starting from the panels, you can begin by taken into account everything that makes use of power in your home to get a good idea of how many you’ll need.

• Firstly, you’ll have to determine the number of watts you use. Simply go through your utility bill for kilowatt-hours (kWh). This varies amongst homes and being able to identify your daily average energy usage will assist you in getting your solar needs.

• Secondly, you have to determine the peak sunlight hours - having in mind that the solar panels only work when under direct sunlight. Once determined, you can then multiply the figure in hours by your home’s hourly energy usage and divide by your selected solar panel’s wattage.

Generally for a 1500 square foot house, you might need around 15 to 18 solar panels to cover the house’s electricity.

Meanwhile for batteries, there are also some factors to be considered to determine the number of batteries you’ll need for your house. These factors include your home’s power or electricity usage, the period of time in which the battery will be used as well as the battery’ specifications. Once done, you’ll be able to calculate the number of batteries required by your home.

If you’re thinking about installing a solar system in your home or property, this is probably one of the things you’d like to know before making a purchase decision. Well, you’ve come to the right place! In this post, we’re going to give you a good insight into this to help you make the best informed decision possible moving forward. Let’s take a look!

First and foremost, it must be stated that providing a short and accurate answer to this question is nearly impossible as the amount of time a solar panel will last after dark is influenced by a number of factors. These factors include the size of your solar system, the battery size as well as your power usage. As you would have imagined, batteries are charged when there is excess energy that’s being produced by your solar system but it’s not being incorporated to power your home or property. More often than not, this occurs during the sunlight’s peak periods from about 10am to 2pm.

The time it’ll take for your battery to charge is influenced by the size of your solar system in Kilowatts, the size of your battery as well as the rate in which your system is being used. Your battery can be charged in a day or two, of course unless it’s an over-sized battery for your system.

When the sun sets and your solar panels can no longer directly run your appliances via electricity generation, the battery then kicks in. You will use about 1 to 2 kW’s of power if you’re watching TV, using the oven as well as lights internet etc. in other words, even a small solar panel battery will last all night. However, the same doesn’t apply if you’re having a party with running floodlights, three fridges and air conditioner as the battery will drain a lot faster.

You can find out roughly how old your wiring is by simply looking at it. If the wiring around your fuse box is covered in old-fashioned casing, or is damaged or fraid, it may be over 25 years old and need replacing. This is more common in older properties or houses that have been empty for long periods of time.

The cost to charge an electric car in the UK varies between home, work and public charging.

For a typical electric car with a 60kWh battery and ~200 mile range:

• Charging at home: Costs about £9.20 for a full charge. *
• Charging at work: Many employers will install workplace charging points and typically offer free access throughout the day.
• Charging at public locations: Public chargepoints at supermarkets or car parks are often free to use for the duration of your stay.
• Rapid charging: Rapid charging points are normally found at motorway service stations and typically cost £6.50 for a 30 min, ~100 mile charge.

Charging an electric car at home costs about £9.20 for a full charge* and is the most convenient and cost-effective way to keep your car fully charged. Most drivers will charge their electric car overnight, waking up to a full battery every morning.

Average domestic electricity rate in the whole of the UK is about 17p per kWh.

Fully charging a 60kWh electric car will cost between £9.00 and £9.90 (depending on where you live) and give you about 200 miles of range.

* Costs calculated at 17p/kWh based on usable battery is ~54kWh (90%).

How Much To Install Solar Panels And Battery?

Are you thinking about installing solar panels and battery in your home and wondering how much the installation is going to cost? Well, you’re not alone. This is one of the most commonly asked questions in the solar world, but unfortunately a precise answer can not be provided. This is mainly due to the fact that solar panel systems come in varying sizes which is the main influencing factor that determines how much electricity that can be generated. In other words, the larger the system, the more the electricity that’ll be produced to your home’s benefit.

Generally, for a solar system size of 1kW, the average cost of the solar panel ranges between £1800 to £1850, 2kW is between £3600 to £3700, solar panel size of 3kW ranges between £5500 to £5600 and finally, 4kW is between £6000 to £6050. For example, with the aforementioned prices in mind, the cost of solar panels for a standard 3 bedroom house will range between £5520 to £6040 as the high electricity demands will need the installation of 3 to 4kW solar system size.

Meanwhile the installation cost of solar batteries is also dependent on a number of influencing factors like the size as well as the make of the battery. Generally, you can expect to spend within the range of £500 to £2000 to install your batteries depending on aforementioned factors. In the event whereby you’ll be retrofitting, you might also need to include an additional cost of £1000 for an inverter. However, it’s important to note that there are only quite a few hybrid systems which are able to combine a battery storage with an inverter.

If you’re about to acquire an electrical safety certificate, it’s quite normal to be a bit curious about the length of time the certificate is expected to last for. Well, this is also a bit tricky as the duration is determined by your type of property. In this post, we aim to shed more light into this topic in order to give you a detailed insight and help you make informed decisions moving forward.

As earlier stated, the validity of your electrical safety certificate or report is based on the type of property you own. In event whereby you happen to have tenants living in the property, the electrical safety certificate will last for 5 years or with every change of tenancy, depending on whichever comes first. However, in the event whereby you happen to live in your property, the electrical safety certificate is going to remain valid for 10 years. What’s more? For commercial properties, the electrical safety certificate is also valid for only 5 years. Meanwhile for caravans and swimming pools, the electrical safety certificate possesses a shorter lifespan of just 3 year and 1 year respectively.

The suggested length of validity is only the industry standard. And as such, landlords are not under any legal obligation to get their electrical safety certificate updated at the aforementioned times. According to the Landlord and Tenant Act of 1985, landlords are only required to keep the electrical wiring in proper condition at all times. It does not in any form require landlords to get an electrical safety report or certificate.

One of the primary reasons why you need to get an electrical certificate is that you may not be allowed to show legal proof that the wiring and electrical set up in your property was in the best possible condition in the event of an electrical accident. Several insurance companies will not accept your claims if you’re unable to present the electrical safety certificate.

If you’re a home or property owner planning to get an electric vehicle, having a Level 2 charger installed in your garage or near your driveway can go a long way to make charging really convenient for you. So if at all you want to take on this task by yourself, you should ensure to do it the right way. If you lack the confidence or skills required to pull this off, then we’d strongly recommend you hire the services of a professional who can guarantee the best results the first time. In this post, we’re going to provide you with an good insight on the home electric charger installation process. Let’s take a look!

• Determine the eligibility of your home. Make sure your home is eligible for a charger installation by consulting with your Technical Safety BC.
• Confirm you have sufficient electricity supply. Is there enough electricity distributed to your home to support an ev charger?
• Confirm that your electrical panel has enough space to accommodate a circuit breaker for the electric vehicle charger. If not, you’ll need to hire the services of an electrician.
• Get an electrical permit. Apply for an electrical permit with your municipality or Technical Safety BC.
• Charger installation. Proceed to fit the ev charger, but make sure a safety officer is on hand to examine your electrical work before you conceal any wiring or attach to a supply source. Then your electrician will have to complete the contractor consultancy form once the installation is done.
• Inspection. The inspection should be inspected by your municipality or Technical Safety BC.
• Apply for a rebate.