Introduction
As the scourge of loadshedding continues to plague households and businesses alike, the quest for reliable, consistent power becomes ever more vital. The market is flooded with a myriad of solutions, from inverters and batteries to solar panels, and all variations in between. Choosing the right solution can seem daunting, if not downright confusing.
We’re here to cut through the noise, simplify your options, and guide you through your journey towards uninterrupted power. Our interactive tool makes this process even easier, leading you to the perfect solution in just a few clicks.
For those looking to understand this intricate landscape in depth, this comprehensive guide will break it all down. We’ll explore three core questions that you need to answer in order to find the most suitable solution for your needs. Alternatively, get solar today! Book a professional electrician with Home+ and say good bye to loadshedding pains.
The Guide to Battery and Solar solutions
Unravel the complexities of loadshedding solutions with our definitive guide, and use our decision maker tool to find the best option for you.
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The Loadshedding Decisionmaker Tool
Question 1: What Do You Want to Have Working During Loadshedding?
A fundamental step in navigating your way to the right loadshedding solution is to understand your power needs. Specifically, what appliances and devices do you want to keep running during a power outage?
This question will help you determine the size of the inverter and battery system that you need. An inverter transforms the power stored in your batteries to a form that your appliances can use, while the battery stores the electrical energy itself.
Insider Tip: Most people find a 5kVA inverter with 5kWh of battery to be a good starting point. It covers basics such as lights, computers, and alarm systems, along with larger appliances like fridges, microwaves or kettles. Interestingly, renting a 5kVA inverter often costs the same as a 3kVA, due to supplier volume discounts.
However, it’s important to remember that each situation is unique. For instance, you may want to run high-power appliances like air conditioners or geysers during loadshedding. This would require a larger inverter and battery system. Our Solar Proposal Request (utilities.homeplus.africa) tool helps you make these decisions by letting you compare your list of essential devices with our comprehensive tables of power usage by device type.
In this section, we’ll delve into the different classes of devices (Group 1, Group 2, etc.), how much power they draw, and what inverter/battery combinations can support them. We’ll also explain key concepts, such as kVA and kWh, in simple, easy-to-understand language.
Decoding kVA and kWh
Before we dive into power usage, let’s clarify what kVA and kWh mean. These two units are critical in understanding the capacity of your power solution.
“kVA” refers to kilovolt-ampere. It tells you how much power a system can handle at once. Every kVA equals 1000 watts. For instance, a 2kVA inverter can handle 2000 watts at a time (e.g., eight 250-watt appliances at the same time).
“kWh” refers to kilowatt-hour. It tells you how much energy a battery can store. Every kWh equals 1000 watt-hours. A 2 kWh battery means it can hold 2000 watt-hours (e.g., it could keep one 250-watt appliance running for about 8 hours).
Power Requirements of Common Devices
To understand what kind of inverter and battery system you need, it’s important to know the power requirements of the devices you want to use during loadshedding.
We categorize devices into four groups, based on their wattage:
- Group 1 (low watts, <400w): These include LED lights, computers & screens, alarm systems, cell phone chargers, TVs & DSTV, and fridges.
- Group 2 (medium watts – short duration, ~400-2200w): Appliances like kettles, microwaves, and hair dryers fall into this category.
- Group 3 (medium watts – long duration, ~400-2200w): This group includes devices like dishwashers, washing machines, and aircons.
- Group 4 (high watts, >2,200w): High-power appliances like geysers and ovens belong here.
Each group corresponds to a certain size of inverter and battery. For instance, a ~2kVA/~2kWh system can power Group 1 items, minus the fridge. A ~5kVA/~5kWh system can support all Group 1 items and 1-2 from Group 2. For a more detailed breakdown, refer to our handy guide in the Solar Proposal Request (utilities.homeplus.africa) tool.
Pro Tip: If money is tight, a small solution may work for you. A 3kVA inverter can power the lights and some plugs in your house, so you can watch TV, use the internet, and have lights at night. If necessary, you can even plug in a 2000w kettle or microwave for a few minutes (though we recommend you only plug them in when needed and not leave them in all the time with a 3kVA system.)
Question 2: Is a Backup Inverter / Battery Enough or Do I Need Solar Panels?
The selection between a simple backup inverter with a battery or an extensive solar panel solution depends heavily on your specific situation and needs. Each has its unique pros and cons. But let’s begin by asking two simple yet crucial questions.
Access to Your Rooftop
The very first thing to determine is whether you have access to your roof. This is where solar panels need to be installed. If the answer is ‘no’, then your decision is pretty straightforward – you’ll have to go with the inverter and battery backup. However, if the answer is ‘yes’, then you have the choice between both solutions. In some cases, you might need to seek permission from your landlord or body corporate if you don’t own the property.
Savings vs. Backup Power
The next question to ponder is: what’s your main priority – saving on electricity bills or ensuring power availability during loadshedding? Many people often think they need a full solar solution, but that’s not necessarily the case.
If your primary aim is to combat loadshedding, an inverter coupled with a backup battery could be sufficient. This setup is relatively cost-effective and works perfectly for people living in places where the roof is inaccessible, like some apartments or rental homes.
On the other hand, if you’re also focused on cost savings in your electricity bill or preparing for worse loadshedding or total grid blackouts, solar panels might be a more suitable choice.
Key Point: Solar panels offer an additional way to keep your batteries charged during prolonged power outages and help reduce your reliance on grid electricity, thereby saving on your utility bills.
Delving Deeper into Solar + Battery Backup vs. Battery Backup Only
Battery Backup Only
The most straightforward option is to opt for a battery backup only. It’s ideal for situations where the loadshedding problem is mild or sporadic, and you just want to ensure that critical loads (like lighting, internet, etc.) remain powered.
In addition to being cheaper upfront, these systems have the advantage of being fairly simple to install and operate. There’s no need to worry about solar panel orientation, shading issues, or changes in power output due to weather. You just have to make sure your battery is kept charged.
However, these systems do rely on grid electricity to recharge the batteries. This means that if there’s a prolonged blackout or grid failure, your backup power supply will be limited to the stored energy in the battery.
Solar + Battery Backup
Integrating solar panels with your battery backup system not only gives you an additional power source to recharge your batteries during the day, but also provides the ability to cut down on your electricity bills by utilizing solar power.
This solution can be more expensive upfront due to the cost of solar panels and associated installation, but it can potentially save more money in the long term. It also has the added benefit of providing a source of power during prolonged blackouts, as solar panels can continue charging your batteries as long as there’s daylight.
Important Consideration: Solar panels can not only help decrease your electricity bill, but also increase your backup power hours if power fails during the day and reduce your charging time.
The Upgradeable Solution
For those who are still unsure, there’s also the possibility of starting with a smaller setup and upgrading later. Many solar-ready inverters on the market allow you to add solar panels later when you have the budget or when your needs change. This means you can start with just an inverter and backup battery to tackle loadshedding, and then expand your system to include solar when it makes sense for you.
Pro Tip: Starting with a solar-ready inverter and backup battery, you can upgrade your system by adding solar panels later when you have the budget or the need for additional power.
Question 3: Should I Buy a System with Cash Upfront, Buy on Credit or Just Rent It?
Choosing the right payment option for your solar or battery backup system can be as crucial as picking the system itself. Your budget, financial goals, and time horizons all play significant roles in this decision. Let’s delve deeper into each option and their implications to help you make an informed choice.
Cash
Paying upfront in cash for your system is a solid option if you have the necessary funds available. This method might be the most expensive at the moment of purchase, but it is the least costly over a long-term period, like 20 years.
Paying in cash means you own the system outright, and there’s no debt to worry about. However, you need to keep in mind that once the warranties expire, any maintenance and repair costs fall squarely on your shoulders.
Key Point: Cash purchases often work out cheaper in the long run. However, they involve higher upfront costs and potential future maintenance costs.
Credit / Lease-to-Own
If you don’t have the full amount ready in cash but still desire to own the system, buying on credit or a lease-to-own basis could be a good choice. However, over time you might end up paying more than the cash price due to the interest charges. And just like with cash purchases, maintenance and repair costs are your responsibility after the warranties expire.
Lease-to-own contracts often offer a lower interest rate, making them a potentially more affordable option for many people. But remember, with this option, you only become the owner at the end of the lease period, meaning you won’t qualify for any tax benefits until then.
Note: Buying on credit may enable ownership for those unable to pay upfront, but it typically costs more due to interest over time. With lease-to-own options, remember that tax benefits only apply once you’re the outright owner.
Rent / Subscribe
Renting or subscribing to a solar or battery backup system offers the most flexibility. This option is particularly useful if you only require the system for a short term (generally, these contracts have a minimum period of 2-5 years) or if you’d rather not concern yourself with maintenance issues, as these are typically handled by the provider.
Subscription models have the lowest upfront costs and provide flexibility. However, you will never own the system. Be aware of potential extra costs for moving the system or early contract termination.
Important Consideration: While rental or subscription models offer lower upfront costs and take care of maintenance, you never own the system, and there may be additional costs for moving or early termination.
Choosing the Right Payment Option
Each payment option comes with its own unique set of benefits and challenges. It’s critical to carefully analyze your financial situation, needs, and long-term plans before making a decision.
Our Solar Proposal Request (utilities.homeplus.africa) tool can help guide you through the process based on your individual circumstances. It is designed to provide personalized advice, taking into account aspects such as your budget, time horizon, and preferences for ownership and maintenance responsibility.
Final Note: If you’re unsure or apprehensive about making a significant financial commitment, we usually recommend considering the subscription or lease-to-own options.
These approaches can provide an immediate solution without draining your savings, ensuring you have funds reserved for unexpected events.
Remember, no matter what option you choose, the ultimate goal is to ensure that you can comfortably afford your chosen system and that it satisfies your power needs. As always, our team is available to answer any questions and provide further guidance.
Request quotes with your newfound knowledge
Now that you’re equipped with this knowledge, it’s time to take the next step.
The Loadshedding Decisionmaker Tool
If you still have questions or would like personalized advice, feel free to request a callback from our team. We are more than happy to assist you in your journey towards sustainable and reliable power.
If you found this guide helpful, don’t forget to share it with others who might benefit from it. Spreading knowledge helps us all move towards a more sustainable future.
Lastly, if you’re ready to take action, explore the ‘decision maker’ on our website. This tool can help you identify the solution that best fits your needs and budget. Don’t wait for the next blackout to start your journey towards energy independence. Start today!
Q&A
1. Q: Do I need a full solar panel system to live loadshedding-free?
A: Not necessarily. While a full solar panel system can provide substantial power, a battery backup with an inverter might be all you need, especially if you have limited roof access or you’re mainly interested in having a backup power supply during loadshedding hours. This setup can power your essential devices and appliances until the grid power returns. However, if reducing your electricity bills or achieving complete energy independence is your goal, investing in a full solar panel system would be more beneficial.
2. Q: What are the financial implications of going solar?
A: There are several ways you can finance your move to solar energy:
– Cash Upfront: This is the most costly option initially but it’s the cheapest in the long run. Once you’ve paid for the system, you own it outright and you’re only responsible for maintenance.
– Credit or Lease-to-Own: If you can’t afford the full amount upfront, you can take credit or opt for a lease-to-own agreement. You’ll pay more over time due to interest, but you’ll own the system eventually.
– Renting or Subscribing: This is the most flexible choice with the lowest upfront cost. You pay a monthly fee to the solar company, which remains responsible for maintenance.
Remember, each of these options has its own pros and cons. Weigh your financial situation against your power needs to make an informed decision.
3. Q: Can I upgrade my power solution over time?
A: Yes, you can! If you’re not ready for a full solar panel system right away, you can start with a battery backup system that includes a solar-ready inverter. This allows you to add solar panels later when your budget permits or when your power needs increase. The key here is to ensure that your initial setup is solar-compatible and upgradable.
4. Q: How can I calculate the potential savings from going solar?
A: The savings from going solar can be substantial, but they depend on several factors, including your electricity consumption, the size and orientation of your solar system, your location’s sunshine hours, and your local electricity tariff. To get a rough estimate, you can use various online solar savings calculators. However, for a more accurate assessment, it would be best to consult with a solar energy provider or an energy consultant.
5. Q: Is the maintenance of a solar panel system complicated?
A: Solar panels are relatively low maintenance. However, it’s important to ensure they are clean and free of debris, as dust and dirt can reduce their efficiency. Also, regular checks should be made to ensure the system’s wiring and connections are secure and intact. Depending on your agreement with your provider (if you’ve chosen to rent or subscribe), maintenance might be included in your package. If you’ve bought your system outright, you’ll be responsible for maintenance, though many providers offer maintenance packages for purchase.
6. Q: Can I install a solar power system if I don’t have roof access?
A: While roof-mounted solar panels are the most common, you have other options if your roof isn’t suitable. Ground-mounted solar panels could be an alternative if you have space in your garden. Alternatively, you could consider community solar projects. However, if you’re mainly looking for a backup power source during loadshedding, a standalone battery backup system might be all you need.
7. Q: Is going solar a worthwhile investment?
A: Yes, in many cases, going solar is a great investment. It can help you save on your electricity bills, provide a reliable power source during loadshedding, and reduce your carbon footprint. However, the actual savings will depend on several factors, including the cost of electricity in your area, the size of the solar system, and the amount of sunlight your location receives.
8. Q: Can a solar power system provide electricity during a blackout?
A: Yes, a solar power system with a battery backup can provide electricity during a blackout. The solar panels charge the batteries during the day, and the batteries supply power to your home when the grid is down. Without a battery backup, a grid-tied solar system will shut down during a blackout for safety reasons.
9. Q: Can a solar panel system power my entire home?
A: It’s possible, but it depends on the size of your solar system and your energy usage. A larger system with more panels and larger battery storage can power more appliances for a longer period. Energy-efficient appliances and good energy habits (like turning off appliances when not in use) can also help you get the most out of your solar system.
10. Q: What happens to excess electricity generated by my solar panels?
A: If your solar system is grid-tied, the excess electricity is usually sent back to the grid. Depending on your utility company’s policies, you might be able to earn credits for this excess power, which can offset your electricity costs. If your system is off-grid, the excess power is typically stored in your battery for later use.