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[ { "title": "LEARN | Solar Funding Models", "nid": "438", "body": "\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cimg alt=\u0022Magnet solar array\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u002268fb3aa2-3010-4366-a4b1-8860471cfdc5\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/56%20resized_1.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003EIf you\u2019re looking into investing in a \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/index.php\u0022\u003Esolar\u003C/a\u003E system, first consider this important question\u2026 How will you fund the installation?\u003C/p\u003E\n\u003Cp\u003EIn this article, we\u2019re discussing the different financial models to fund solar systems. \u00A0\u003C/p\u003E\n\u003Cp\u003EThere are 3 solar funding models in the market:\u003Cbr /\u003E\n1. Power Purchase Agreement (PPA)\u003Cbr /\u003E\n2. Lease\u003Cbr /\u003E\n3. Outright purchase\u003C/p\u003E\n\u003Cp\u003EObviously models do vary, but the fundamentals are generally the same. Familiarise yourself with the pro\u2019s and con\u2019s we\u2019re highlighting in each option, and decide which is the most suitable way forward for your solar investment\u2026\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EPower Purchase Agreement (PPA)\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EIna PPA, the provider is generally a \u201CFinancial Engineer\u201D whom outsources a separate contractor to install and maintain the solar system, at no cost to you. Typically, you will sign a contract of between 12 and 20 years, to take all power produced by the system.\u003C/p\u003E\n\u003Cp\u003EPay particular attention to the fine print. Be sure to establish if power produced and not consumed over the weekends, public holidays and shut-down periods will be billed or discounted. Generally, these contracts are factored on a \u201Ctake or pay\u201D, where you pay for all power produced, irrelevant of your requirement for it.\u003C/p\u003E\n\u003Cp\u003EMoreover, be sure that you are as energy efficient as possible, before installing the solar system. For instance, if you change to LED lighting after a system is sized and installed, your electrical load profile will drop and you will be obligated to buy extra power that you are no longer using.\u003C/p\u003E\n\u003Cp\u003EFurthermore, always ensure that you are going to be at the premises for at least the length of the contract. Otherwise, you will need to buy your way out of the contract when you move.\u003C/p\u003E\n\u003Cp\u003ELastly, you can expect a reduction in power cost of 10 -25% of the roughly 30-40% power the PPA provider will be supplying you. The net effect is that you will most likely see a discount of between 3 and 8% off you electricity costs.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ELease\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EWith a lease, the asset is installed by an EPC (Engineering, Procurement and Construction) provider and financed through a separate company.\u003C/p\u003E\n\u003Cp\u003EDid you know that Magnet has its own financing platform? Magnet Capital will provide the finance, whilst Magnet will also install the system. There is no deposit required, no surety required, funding is off the balance sheet, and it can be approved in a matter of weeks. As opposed to the banks, which often take months.\u003C/p\u003E\n\u003Cp\u003EFurthermore, you can either have a zero escalation linked to prime, or have an 8% escalation matching the anticipated increase in energy cost. Cost of power dependent, some sites are cash positive from day one, with zero cash outlay.\u003C/p\u003E\n\u003Cp\u003EAfter a 4, 5 or 6 year lease, the asset changes hands and all electricity savings are then enjoyed by the end user or land lord.\u003C/p\u003E\n\u003Cp\u003ESite operational hours dependent, once the system has been paid off, electricity bill savings can vary between 20 and 45%.\u003C/p\u003E\n\u003Cp\u003EIf you have no Capex to allocate, then this is the most beneficial solution to use. Moreover, you won\u2019t be locked into a 15 \u2013 20 year PPA agreement with the risk of having to pay for all power produced and only seeing a 3-8% saving.\u003C/p\u003E\n\u003Cp\u003ELearn more! Click \u003Ca href=\u0022https://www.magnetgroup.co.za/download/magnet-capital.pdf\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to download the Magnet Capital brochure now!\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EOutright purchase\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EIf you have the capital, or can extend your bond to secure a loan below prime, then this could be the solution with the best financial returns\u2026\u003C/p\u003E\n\u003Cp\u003EWhen purchasing your own solar system, you simply award a service provider, take out a maintenance plan with them, and then you have a system that reduces your power consumption by up to 45%.\u003C/p\u003E\n\u003Cp\u003EIn addition, as the system is in the company\u2019s name, that company is entitled to the SARS 12B depreciation benefit. Essentially this means 28% of the project value is tax deductible in year one. If the system is under a PPA or lease, you don\u2019t get that tax break. However, under a lease, your repayments are tax deductible.\u003C/p\u003E\n\u003Cp\u003E\u003Cimg alt=\u0022Solar funding models\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022df3fe0a8-3dc4-42ab-8a84-23c2049a8085\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Solar%20funding%20models.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/p\u003E\n\u003Cp\u003ELearn more! Click below\u00A0to read our articles on:\u003Cbr /\u003E\n- \u003Ca href=\u0022https://www.magnetgroup.co.za/news.php?type=articles\u0026amp;name=SOLAR--Switch-to-Solar-and-take-advantage-of-Tax-Breaks\u0022\u003E\u003Cstrong\u003ESolar Tax Breaks\u003C/strong\u003E\u003C/a\u003E\u003Cbr /\u003E\n- \u003Ca href=\u0022https://www.magnetgroup.co.za/news.php?type=articles\u0026amp;name=Grid-Tied-Off-Grid-and-Hybrid-Solar-Systems---what039s-the-difference-\u0022\u003E\u003Cstrong\u003EDifferentiating between the different solar systems\u003C/strong\u003E\u003C/a\u003E\u003Cbr /\u003E\n- \u003Ca href=\u0022https://www.magnetgroup.co.za/news.php?type=articles\u0026amp;name=END-OF-SERIES--7-Common-Mistakes-of-Solar-part-5\u0022\u003E\u003Cstrong\u003E7 Common Solar Mistakes\u003C/strong\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EIn closing\u2026\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003ESolar power is definitely a sound investment. When considering which of the financing models is the best fit for you, remember to ask yourself these questions:\u003Cbr /\u003E\n1. Who will own the asset?\u003Cbr /\u003E\n2. Will you pay for power you don\u2019t consume?\u003Cbr /\u003E\n3. Will your Capex budget be positively or negatively affected?\u003Cbr /\u003E\n4. How much energy savings will you see?\u003Cbr /\u003E\n5. Is it important for you to benefit from Solar Tax Breaks?\u003C/p\u003E\n\u003Cp\u003E\u00A0\u003C/p\u003E\n\u003Cp\u003EConsidering a solar or back-up power solution for your facility? Click \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Ehere \u003C/strong\u003E\u003C/a\u003Eto chat to one of our experts now!\u003Cbr /\u003E\n\u00A0\u003C/p\u003E\n", "created": "Oct 2020", "terms": "Solar, Education" }, { "title": "LEARN | The World of Inverters", "nid": "436", "body": "\u003Cp class=\u0022text-align-justify\u0022\u003EThe inverter is a fundamental part of every \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/index.php\u0022\u003Esolar or back-up power\u003C/a\u003E installation. Hence, understanding this piece of equipment is important in ensuring you choose the right inverter for your application. In this article, we\u2019re taking you into the world of inverters - giving you a basic understanding of what inverters are, and describing the different types of inverters.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EUnderstanding inverters\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EBefore discussing what inverters are, it is important to first understand that there are two types of electricity \u2013 alternating current (AC) and direct current (DC).\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAt home, appliances are designed to run off of an AC supply. AC electricity is received from electrical outlets. However, electricity received from solar panels and batteries is DC electricity. In order to power appliances and other electrical equipment from renewable sources or battery banks, an inverter is used to invert DC electricity into AC electricity.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAn inverter typically consists of a number of electronic switches known as IGBT\u2019s (insulated-gate bipolar transistors). The opening and closing of these switches is controlled. The IGBT\u2019s can open and close exceptionally fast, and in pairs, to control the flow of electricity. By controlling the path which the electricity takes and how long it flows in the different paths, AC electricity is then produced from the DC source.\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cimg alt=\u0022Inverters explained\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u00228d74575f-eea5-499c-9de8-c73884e41382\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Inverters%20Explained-02.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EInverter applications\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ETypical applications of solar inverts include:\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EUninterruptible power supplies\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EAs a building block of a switched mode power supply\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EAs standalone inverters\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EDifferent types of inverters\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EA hybrid solar system stores excess solar energy and can also provide back-up power during load shedding. This is ideal for residential use. For businesses (which primarily operate during daylight hours), a grid-tied solar system is still the most economical choice.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn grid-tied and hybrid solar systems, the panels are connected directly into the inverter. The inverter then plugs into the building\u2019s electrical box or (DB board). Functions typically performed by grid-tied and hybrid inverters include:\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EMonitoring power usage\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EGrid synchronisation\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EUses an alternative source of power (batteries or solar panels)\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003ESynchronises between power sources (uses another source if one is depleted)\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E1. Pure Sine Wave\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EWhen purchasing an inverter, you always want the current wave to be as \u201Ctrue\u201D or \u201Cpure\u201D as possible. Pure sine wave inverters can be used on all electronic equipment and typically will not have any side effect. Features of pure sine wave inverters include the fact that they deliver quality power output, they are quieter than modified sine waves, and they are ideal for modern appliances.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EA pure sine wave inverter, however, is more expensive than a modified sine wave inverter.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E2. Modified sine wave\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EModified sine wave inverters output lower quality power and are only compatible with certain appliances. As such, they can be used for simple systems that don\u2019t have any delicate electronics or audio equipment. Although some equipment may seem to be working fine with a modified sine wave inverter, they may actually run hotter and their lifespan may also be affected.\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cimg alt=\u0022Pure vs modified sine wave\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022be89aeb6-d787-4bda-8d50-4c0fcf2277f6\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Pure%20sine%20wave%20vs%20mod%20sine%20wave-01.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EGrid-tied inverters (used for energy efficiency)\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EString inverters are the least expensive option for use in grid-tied systems. With this type of inverter, there are large groups of panels wired together into strings. However, shade on one panel can affect the entire string. If the system is partially shaded, the efficiency of string inverters drops dramatically.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EWith the provision of building a system in full sunlight, a great option will then be the string inverter - saving money, without sacrificing quality or efficiency. However, if there is shade or other obstructions to the system, consider string inverters with individual power optimizers on each panel.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EPower optimizers allow the inverter to control the output of each panel independently. So if one panel gets shaded, the rest of the panels in the array will continue to produce at full strength. Optimizers also allow for the monitoring of the system on a per-panel basis.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EMany string inverters can function with or without power optimizers. These are simply an extra cost to add the monitoring and shade mitigation functionality.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAnother option for grid-tied systems is the micro-inverter. The concept of micro-inverters is simple: attach an inverter to every panel. There are two main instances where micro-inverters should be used:\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u2022 When starting with a small system, with a view of expanding down the road.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u2022 When importance is placed on monitoring and optimizing each panel independently.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EWhen pairing a micro-inverter with a panel, a self-contained single-panel solar energy system is created. Each will produce power, regardless of how many panels there are. This eliminates the need to rewire and re-balance panel strings when adding on to the system down the road. This is a more expensive option than string inverters, however, the overall yield is slightly higher.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EHybrid inverters (used for load shedding)\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThe most versatile option is the hybrid inverter. These accept DC and AC power, and various solar power applications are possible with hybrid variations. Here are a few advantages of hybrid inverters:\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EAffordable for its functionality\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EPowers loads by using energy sources in the most efficient way\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EIdeal choice for both business and residential use\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ETo illustrate how hybrid inverters work, take for example a home that runs 1000 watts of power. In the event that solar panels can only produce half of this, the inverter will pull the remaining energy required from the battery. In the instance where there is no battery capacity available, the inverter then draws the remaining energy required from the grid.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EMost modern hybrid inverters have the battery charger and connection built-in, making the future addition of a battery much easier. However, hybrid inverters are more expensive, when compared to grid-tied inverters.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EOff-grid inverters\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EOff-grid systems are typically used where there is no municipal connection. These systems are made up of the same equipment as a hybrid system, but have large battery banks. Furthermore, they are typically designed to operate for at least 3 days without any sun light. Solar power generated from panels charge the batteries directly. Off-grid inverters then invert the DC electricity from the batteries into AC electricity.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EConsidering a solar or back-up power solution? Need advice on inverters, batteries and more? Then \u003Ca href=\u0022https://www.magnet.co.za/contactus.html\u0022\u003E\u003Cstrong\u003ECHAT\u003C/strong\u003E\u003C/a\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003E \u003C/strong\u003E\u003C/a\u003Eto our team of experts now!\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u00A0\u003C/p\u003E\n", "created": "Oct 2020", "terms": "Solar, Back-Up Power, Education" }, { "title": "READ | Switch to Solar and take advantage of Tax Breaks", "nid": "433", "body": "\u003Cp\u003E\u003Cb\u003EHave you considered a solar energy solution for your business?\u003C/b\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EYour business is at the mercy of Eskom \u2013 that\u2019s not news. But there is a solution that\u2019s become too appealing to ignore\u2026 Solar Energy. What makes the switch to solar even more viable, is the fact that South African businesses can qualify for a solar energy tax break.\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/index.php\u0022\u003E\u003Cimg alt=\u0022Save with solar\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u002255b73939-a699-40ce-b083-4b6212f5d5c2\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Save-Money-with-Solar.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cb\u003EUse solar energy tax breaks to boost your returns!\u003C/b\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ESection 12B of the Income Tax Act (No 58 of 1962) was amended in 2016 in order to make an allowance for the depreciation of specific solar installations.\u003C/p\u003E\n\u003Cp\u003EThe accelerated depreciation allowance, as per the amendment, applies to solar systems that generate 1MW or less. It enables businesses to claim 100% depreciation in the year the system is commissioned.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cb\u003EWhat criteria do companies need to meet in order to qualify for tax breaks?\u003C/b\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAs outlined in the Act, three critical requirements must be met to benefit from tax breaks:\u003C/p\u003E\n\u003Col\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EThe claim must be made in the same tax year that the system was commissioned\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EThe system must either be a roof top system, a grid-tied system or a ground-mounted system\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003EThe energy generated from the solar system must be used for business purposes only\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cb\u003EThe fine print\u2026\u003C/b\u003E\u003C/p\u003E\n\u003Cp\u003ECompany tax in South-Africa is\u003Cstrong\u003E\u00A028%\u003C/strong\u003E. With this in mind, you can deduct the value of your new solar power system as a depreciation expense from your company\u2019s profits. Essentially, this means that your company\u2019s income tax liability will be decreased by the same value as the value of the installed solar system. Therefore, it is the same as getting a\u00A0\u003Cstrong\u003E28% discount\u003C/strong\u003E\u00A0on the price of your solar system!\u003C/p\u003E\n\u003Cp\u003EGreat news - the tax break is applicable for all costs of the system, and its installation. This is also inclusive of the cost for components such as panels, AC inverters, DC combiner boxes, racking, cables and wiring. Installation and delivery costs are included too!\u003C/p\u003E\n\u003Cp\u003EMoreover, tax breaks apply whether you pay for the solar system upfront or on credit. However, the break does not include financing.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cb\u003EWhat do tax breaks mean for companies?\u003C/b\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ETax breaks help businesses free up cash flow, which is a much-appreciated benefit in a tough economic climate.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ESolar equipment will\u00A0pay for itself, in a few years. Moreover, the combination of getting energy for \u2018free\u2019, recouping costs via breaks, and no longer spending as much on grid power, makes the switch to solar an obvious choice.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cb\u003EWe provide trusted commercial solar solutions! \u00A0\u00A0\u00A0\u003C/b\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EConsidering solar for your business, but need a bit more information? Click \u003Cstrong\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/download/commercial-solar-offer-2020.pdf\u0022\u003Ehere\u003C/a\u003E \u003C/strong\u003Eto download our brochure.\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/download/commercial-solar-offer-2020.pdf\u0022\u003E\u003Cimg alt=\u0022Invest in solar\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022435c4bf6-0c93-475e-916b-ffc9375811f8\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Invest%20in%20solar.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003EChat\u003C/strong\u003E\u003C/a\u003E to our solar and back-up power experts for a solution now!\u003C/p\u003E\n", "created": "Oct 2020", "terms": "Solar, Education" }, { "title": "LEARN | Understanding Batteries pt 2 - Sizing and Selection", "nid": "429", "body": "\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/index.php\u0022\u003E\u003Cimg alt=\u0022Battery sizing and selection\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022ebcf98a5-6594-44c3-ac74-a7ec5e305ac0\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/energy-storage-system-blog-3.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u00A0\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn the \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/news.php?type=articles\u0026amp;name=LEARN--Understanding-Batteries-pt-1\u0022\u003E\u003Cstrong\u003Efirst article of this series\u003C/strong\u003E\u003C/a\u003E, we outlined the differences between the main types of batteries \u2013 Lead Acid and Lithium-ion:\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E1. Lead Acid\u003C/strong\u003E\u003Cbr /\u003E\nThis type of battery has been used for \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/index.php\u0022\u003Esolar\u003C/a\u003E energy storage since the very beginning, and it continues to be a popular choice. There is a flooded lead-acid option, and its counterpart, sealed lead-acid. In sum, lead acid batteries require regular maintenance and they have a longer charge time.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E2. Lithium-ion\u003C/strong\u003E\u003Cbr /\u003E\nLithium-ion batteries are considered to be the most efficient battery type. However, they are not cheap \u2013 these batteries generally carry the highest cost, depending on the brand. Advantages of these batteries are that they are completely maintenance-free, and generally more compact than lead acid. Moreover, lithium-ion batteries require a much shorter\u00A0charge time than lead acid.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EClick \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/news.php?type=articles\u0026amp;name=LEARN--Understanding-Batteries-pt-1\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to learn more about the types of batteries.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn this\u00A0article, we\u2019re giving you a basic understanding of battery sizing and selection...\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EHow do you size batteries for your specific application? \u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EBattery sizing is one of the most important considerations when choosing the specifics of your \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/index.php\u0022\u003Esolar or back-up power system.\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003EThe main objective when sizing a battery bank is to get one that can handle the load coming from the municipal grid or your PV panel array. Moreover, your battery bank needs to provide enough stored power for your needs, without having to regularly discharge to an unhealthy point.\u003C/p\u003E\n\u003Cp\u003EHere are a few considerations when sizing batteries:\u003C/p\u003E\n\u003Col\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003ECalculating your load\u003C/strong\u003E\u003Cbr /\u003E\n\tFiguring out how much battery storage you may need in amp hours (AH), isn\u2019t quite as challenging as you may think. In order to size your battery correctly, it is vital that you know what loads (lights, appliances, power supplies, etc.) you would like to back up on the system, and the duration the load needs to operate during an outage or none-sunshine periods.\u00A0\n\u003Cp\u003E\t\u003Cstrong\u003EWe have a Power Profile tool to help you out with this! Click \u003Ca href=\u0022https://www.magnetgroup.co.za/news.php?type=articles\u0026amp;name=DOWNLOAD--Size-your-System-with-our-Power-Profile-Tool\u0022\u003Ehere\u003C/a\u003E to download now!\u003C/strong\u003E\u003Cbr /\u003E\n\t\u00A0\u003C/p\u003E\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022 value=\u00222\u0022\u003E\u003Cstrong\u003EBattery autonomy\u003C/strong\u003E\u003Cbr /\u003E\n\tTake into account the number of hours or days you want to be able to go before needing to recharge your batteries. If you need to power certain appliances for a specific number of hours (or even days) at a time, without interruption, you\u2019ll need more batteries to carry a bigger load.\u003Cbr /\u003E\n\t\u00A0\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EHybrid Solar Systems\u003C/strong\u003E\u003Cbr /\u003E\n\tA solution for load shedding is a Hybrid system. Like Grid-tied systems, hybrid systems are also interconnected to the local electrical authority, however, these systems have batteries as a back-up.\n\u003Cp\u003E\t\u003Cstrong\u003EClick \u003Ca href=\u0022https://www.magnetgroup.co.za/news.php?type=articles\u0026amp;name=Grid-Tied-Off-Grid-and-Hybrid-Solar-Systems---what039s-the-difference-\u0022\u003Ehere\u003C/a\u003E to learn more about the different types of solar systems.\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003E\t\u003Cstrong\u003EWhen sizing a battery bank for a solar system, the following should be considered:\u003C/strong\u003E\u003Cbr /\u003E\n\t- cloud coverage\u003Cbr /\u003E\n\t- voltage drop\u003Cbr /\u003E\n\t- ambient temperature of the area where the batteries will be stored\u003Cbr /\u003E\n\t- method of installation\u003Cbr /\u003E\n\t- power fluctuations\u003Cbr /\u003E\n\t- energy loss due to wear on the system\u003C/p\u003E\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EBattery selection\u003C/strong\u003E\u003Cbr /\u003E\nNow that you\u2019ve sized your battery, how do you go about selecting the right battery for your application? Here are a few considerations to bear in mind:\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003ECost\u003C/strong\u003E\u003Cbr /\u003E\n\tAre you prepared to spend less now, and much more later. Or is it feasible for you to spend more now, and significantly less later? In the end, as with most things in life, you get what you pay for. Bear this in mind when considering brands of batteries and the maintenance they require.\u003Cbr /\u003E\n\t\u00A0\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EApplication\u003C/strong\u003E\u003Cbr /\u003E\n\tKnowing how often the batteries will be cycled is important for battery selection. Consider this from the aspect of application \u2013 what do you require battery storage for e.g.: to mitigate the impact of an unreliable grid (load shedding) or to reduce your dependence on the grid (energy-saving); or do you want to go completely off-grid? The latter usually always requires cycling of the batteries.\u003Cbr /\u003E\n\t\u00A0\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EUsable Depth of Discharge \u003C/strong\u003E\u003Cbr /\u003E\n\tDepth of Discharge (DoD) refers to the percentage of the battery that has been discharged, relative to the overall capacity of the battery. For example, if you have a battery that holds 5 kilowatt-hours (kWh) of electricity, and you discharge 4kWh, the DoD is approximately 80%. The DoD depends on the type of battery you choose. A typical Lead-Acid battery option has a DoD of around 50%. A typical Lithium-ion solar battery option has a DoD of between 80%. This comes into play when calculating your solar battery needs.\u003Cbr /\u003E\n\t\u00A0\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003EBattery charging\u003C/strong\u003E\u003Cbr /\u003E\n\tTo charge a battery, a battery charger must be included in your solar or back-up power system.\u003Cbr /\u003E\n\t\u00A0\u003C/li\u003E\n\u003Cli class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003ESystem monitoring\u003C/strong\u003E\u003Cbr /\u003E\n\tMetering assists you in reading the status of the system. Most charge-controllers have features such as indicator lights and readouts already built-in. Consider including devices that monitor voltage and current, record amp-hours, and accurately display the state-of-charge of the battery bank. More detailed information is also captured, which can be useful for troubleshooting. The monitor may be mounted in another room or building, for easy access.\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EAre you interested in a solar or back-up power solution? Click \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to chat to our experts now!\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://shop.magnetgroup.co.za/#!category/batteries\u0026amp;id=CDB41F78-B637-429F-8065-B743E913C828#group=back-up-power\u0022\u003E\u003Cimg alt=\u0022Solar array on roof\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u00229d60fdc6-389e-4bdf-9a3a-b7a4fae724cf\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/56%20resized_0.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003E\u00A0\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003E\u003Ca href=\u0022https://shop.magnetgroup.co.za/#!category/batteries\u0026amp;id=CDB41F78-B637-429F-8065-B743E913C828#group=back-up-power\u0022\u003ESHOP\u003C/a\u003E\u003C/strong\u003E batteries on the Magnet Store now!\u003C/p\u003E\n", "created": "Sep 2020", "terms": "Solar, Back-Up Power, Education" }, { "title": "LEARN | Understanding Batteries pt 1", "nid": "423", "body": "\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cimg alt=\u0022Batteries\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022bd1d5ea3-5812-4769-a6dd-11965d1cf434\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/energy-storage-system-blog-3_0.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003E\u00A0\u003C/p\u003E\n\u003Cp\u003EIf you\u2019re considering a \u003Ca href=\u0022https://www.magnetgroup.co.za/solutions-solar/index.html\u0022\u003Esolar or back-up power solution\u003C/a\u003E for your home or facility, important factors to bear in mind are battery types and selection thereof.\u003C/p\u003E\n\u003Cp\u003EIn this new series, we\u2019ll be giving you a basic understanding of the various types of batteries which could be used in solar and back-up power systems. We\u0027ll also be\u00A0sharing some advice on how to choose the right battery for your system, and much more. Don\u0027t miss out, \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Esubscribe\u003C/strong\u003E\u003C/a\u003E to our newsletters now!\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ETypes of batteries\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EBatteries enable you to store energy, to use on demand. Solar and back-up power systems use batteries, and this is how it\u2019s done:\u003C/p\u003E\n\u003Cp\u003E1. Battery is charged when the sun is out during the day (solar energy)\u003Cbr /\u003E\n2. The\u00A0above is accomplished via a charger, which can either be linked to solar panels or, in some cases, the charger is built into the inverter\u003Cbr /\u003E\n3. Stored power in the battery can then be used when there is no sun (in the evenings)\u003Cbr /\u003E\n4. Batteries are then recharged the next day, and so forth\u003C/p\u003E\n\u003Cp\u003EWhen it comes to electricity storage from solar power systems, there are basically two main types of battery to consider. Here\u2019s our overview of these batteries:\u003C/p\u003E\n\u003Cp\u003E\u003Cimg alt=\u0022understanding batteries\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022f626dc10-d9cb-474c-9681-06bd0e2f886d\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/understanding%20batteries-02_0.jpg\u0022 style=\u0022max-width:900px !important\u0022 class=\u0022align-center\u0022 /\u003E\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ELead-Acid Batteries\u003C/strong\u003E\u003Cbr /\u003E\nThis type of battery has been used for solar energy storage since the very beginning. There is a flooded lead-acid option, and its counterpart, sealed lead-acid.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EFlooded Lead-Acid Batteries\u003C/strong\u003E\u003Cbr /\u003E\nFlooded lead-acid batteries comprise of cells that are submerged in a sulphuric acid solution. As such, they are also referred to as wet-cell batteries. The plates of every cell in these battery banks must be submerged at all times, so maintaining them involves the adding of distilled water every 6 to 12 months, or even as often as every month, depending on the type of lead-acid battery.\u003C/p\u003E\n\u003Cp\u003EIt is important to note that you should never add any fluid to these batteries other than distilled, deionized water. Batteries must be filled only to the level as recommended by the manufacturer, or else they could possibly overflow during finish-charging.\u003C/p\u003E\n\u003Cp\u003EIn sum, flooded lead-acid batteries are, however, the cheaper of the two options, but require regular maintenance.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ESealed Lead-Acid Batteries\u003C/strong\u003E\u003Cbr /\u003E\nAn upgraded version of the flooded lead-acid battery is the sealed lead-acid. They are typically used in instances when a larger storage capacity is required.\u003C/p\u003E\n\u003Cp\u003EAlthough sealed lead-acid batteries involve virtually no maintenance compared to its predecessor, they are not without drawbacks either. To help you understand these batteries, here\u2019s a snapshot of their advantages and disadvantages\u2026\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EAdvantages of Sealed-Lead Acid Batteries:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003ERequire virtually no maintenance\u003C/li\u003E\n\u003Cli\u003ECharge quicker with a lower voltage\u003C/li\u003E\n\u003Cli\u003EDo not have to be mounted upright\u003C/li\u003E\n\u003Cli\u003EReduced risk of acid leaks as they are completely sealed\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EDisadvantages of Sealed-Lead Acid Batteries:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003EHigher in price (brand-dependent)\u003C/li\u003E\n\u003Cli\u003ETypically have a shorter lifespan.\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003ELithium-ion Batteries\u003C/strong\u003E\u003Cbr /\u003E\nLithium-ion batteries are considered to be the most efficient battery type. Examine their advantages and disadvantages below to draw your own conclusion:\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EAdvantages of Lithium-ion Batteries:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003ELongevity - they typically have a life spanning from around 10-20 years\u003C/li\u003E\n\u003Cli\u003ECompact \u2013 these batteries are generally smaller and much lighter\u003C/li\u003E\n\u003Cli\u003ENo maintenance \u2013 these batteries are completely maintenance free\u003C/li\u003E\n\u003Cli\u003ENo need to mount upright\u003C/li\u003E\n\u003Cli\u003EHigher Depth of Discharge \u2013 typically more than 95%\u003C/li\u003E\n\u003Cli\u003EProduce up to 100% of the stored energy\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EDisadvantage of Lithium-ion Batteries:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003ENot cheap \u2013 depending on the brand, these batteries typically carry the highest cost\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat is the main difference between Lead-Acid and Lithium Ion batteries?\u003C/strong\u003E\u003Cbr /\u003E\nDepth of Discharge (DoD) refers to the percentage of the battery that has been discharged, relative to the overall capacity of the battery. For example, if you have a battery that holds 5 kilowatt-hours (kWh) of electricity, and you discharge 4kWh, the DoD is approximately 80%. The DoD depends on the type of battery you choose. A typical Lead-Acid battery option has a DoD of around 50%. A typical Lithium-ion solar battery option has a DoD of between 80%. This comes into play when calculating your solar battery needs.\u003C/p\u003E\n\u003Cp\u003EBe sure to catch our next articles in the series, click \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to subscribe to our newsletters!\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://shop.magnetgroup.co.za/#!category/batteries\u0026amp;id=CDB41F78-B637-429F-8065-B743E913C828#group=back-up-power\u0022\u003E\u003Cstrong\u003ESHOP\u003C/strong\u003E\u003C/a\u003E batteries on the Magnet Store!\u003C/p\u003E\n\u003Cp\u003ENeed a solar or back-up power solution for your facility? Click \u003Ca href=\u0022mailto:hello@magnetgroup.co.za\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E \u003C/a\u003Eto contact us now!\u003C/p\u003E\n\u003Cp\u003EHave you seen our Solar \u0026amp; Back-Up power catalogue? Simply click \u003Ca href=\u0022https://www.magnetgroup.co.za/download/magnet-solar-catalogue.pdf\u0022\u003E\u003Cstrong\u003Ehere\u003C/strong\u003E\u003C/a\u003E to download your copy!\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/download/magnet-back-up-power-catalogue.pdf\u0022\u003E\u003Cimg alt=\u0022BUP Catalogue\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022ed2f36fc-9c18-45ea-87ba-dd1fbdf211f2\u0022 height=\u0022519\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Back%20Up%20Power.emf__0.jpg\u0022 width=\u0022360\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp\u003E\u00A0\u003C/p\u003E\n", "created": "Sep 2020", "terms": "Solar, Back-Up Power, Education" } ]