Eco-friendly energy tech news by Mathew Wrist Coventry UK today: The level of solar irradiation that falls upon the earth varies with the geography of the planet. Generally, the closer to the equator the more solar energy but what most don’t realize is that solar energy can be used anywhere. For example, in the sunniest parts of America a solar system will produce on average 4.7 kWh of power per 1 kilowatt of solar panels but in the least sunny areas, such as the mountains and north east, it wills till produce 2.9 kilowatt hours per kilowatt, per day. So although some areas are better than others for solar power it is still viable in almost all locations. See more info on See extra info at https://www.tumblr.com/blog/mathewwrist.
How long do solar panels last? However, while that’s usually the case with a central inverter (which handles the output of all the panels), a newer type, the so-called ‘micro-inverters’, are installed or included with each solar panel, and are said to have a much longer lifespan (up to 25 years), and could last for decades as well.
Solar energy has to be used right away, or it can be stored in large batteries. These batteries, used in off-the-grid solar systems, can be charged during the day so that the energy is used at night. This is a good solution for using solar energy all day long but it is also quite expensive. In most cases, it is smarter to just use solar energy during the day and take energy from the grid during the night (you can only do this if your system is connected to the grid). Luckily your energy demand is usually higher during the day so you can meet most of it with solar energy.
Sustainable eco-friendly energy tech advances with Matthew Wrist Warwickshire UK: Those appliances in the household with the highest electricity demand are the dish washer, the washing machine, the tumble dryer and the kitchen stove. These can easily be equipped with timer switches, so that they run during the day, when the solar generator on the roof is producing a lot of output, which can be used directly. A high-wattage stove might be a challenge for PV by itself. In this case, a large storage unit (solar battery) can be used as a buffer for short-term load peaks. Because it is not just the number of kilowatt hours on the roof that has to be sufficient, but also the currents made available at short notice. This determines if a storage unit is designed for capacity (in kilowatt hours) or output (in kilowatts).
Stand-alone PV systems are not connected to the grid, but instead charge a solar battery system. These batteries store the electricity generated by your panels. To operate your appliances, the stored electricity from these batteries will be used. Stand-alone systems are used in areas that cannot be connected to a grid, and are typically more expensive than grid-connected systems because solar batteries are still quite costly. Solar batteries store electricity generated by the sun’s energy and allow you to use it during the evenings when your solar panels are not generating electricity. You can make use of solar batteries whether you are connected to the grid or not.
When considering solar panels for your roof, it is important to take into consideration whether the roof is strong enough to support the weight of the solar system. For example, a 4kW system normally has 16 panels of 250W, adding up to a total weight of approximately 280kg. Nowadays, most materials are suitable to hold solar panels — it’s only slate and wooden roofs that may be too brittle. In addition, consider if your roof is large enough to have solar panels on it. You will need at least 30 cm of space around your solar panels, so you need to take this into account when calculating how much roof space you have. For example, a 4kW system having 16 panels requires at least 29 m2 roof space.
So just what is the best generator for home use? It depends on your situation. For example, the best standby generator for home use isn’t necessarily the same as the best generator for running your off grid home. And the best generator for an off grid cabin depends on the length and frequency of the run times. It also depends on whether your off grid cabin has any other energy source (ie. solar panels or a windmill.) And how much power your home systems require. When you’re reading the specs on a generator, look for any manufacturer’s recommendations on whether it’s for occasional use, emergency use, or to use off the grid. Not all generators are made to withstand the heavy use of an off grid home. So don’t make the off grid homeowner mistake of choosing one labeled “emergency use” as your everyday power backup for solar panels in the low-sunlight days of winter. Doing so could void the manufacturer’s warranty.