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With a new-build home, you’re overwhelmed with decisions... location, heating, flooring, materials, and much more.
If you’re thinking about long term sustainability and energy efficiency - you’ll want to explore the ins and outs of renewable energy system. If you're considering solar, you next need to decide between the three types of solar systems: off-grid, grid-tied or hybrid. Choosing the right system means minimising power costs and good return on your investment in the long run.
While one system type is perfect for some homeowners, it could be bad for others. All systems are beneficial in their own ways, so knowing the facts and benefits of each will help you decide which is right for you.
In this blog, we’ll dive deeper into the pros and cons of our most common system: the hybrid set-up, and compare it with going off-grid.
Hybrid solar systems: What is it, and what does it mean for homeowners?
A hybrid solar system is grid-tied with battery storage. They come with a special ‘smart’ inverter that can transmit direct current (DC) power to and from your batteries, and channel alternating current (AC) power between the grid and your home when necessary.
Hybrid systems allow for full control over your power, while keeping you grid-connected in case of emergency.
Key benefits of hybrid systems
Here are some of the perks of a hybrid solar system:
- You’ll use less grid electricity than you would with a traditional grid-tied system. While hybrid setups are grid-tied, they come with solar battery storage, which means you can maximise consumption of the power generated from the panels.
- A hybrid system is possibly the most expandable, future-ready home solar setup. With some customisable hybrid systems, you can expand capacity by buying more panels or batteries. Hybrid systems may also be compatible with newer solar technologies — for example, an electric vehicle (EV) might function as one of the ‘batteries’ in a hybrid setup.
- For even lower costs, you can use a power management system. These technologies can automatically optimise your power usage. (For example, larger appliances like dishwashers can be switched on during peak daylight hours.) The result: bigger utility savings and a quicker ROI.
Some cons of hybrid systems:
- There’s a lot to install upfront, making the initial investment bigger. While you can budget for a smaller battery bank than with an off-grid setup, the cost still needs some thought. Specialised equipment, such as a smart hybrid inverter, adds to the price tag.
- Lots of space might be necessary for the required parts. With grid access, you’re likely not in an isolated rural area - even so, you’ll need space for hybrid solar equipment, including the battery bank and inverters.
Off-grid - what is it, and what does it mean for homeowners?
An off-grid solar system is a solar installation that isn't connected to the utility grid. This means you have to rely on your solar panels to generate all your power, all the time.
With an off-grid system, solar batteries are necessary for storing energy. It’s also smart to budget for a backup generator for extended periods of bad weather in case solar battery storage runs out.
Considering going off the grid? Here are some of the benefits:
- You’ll have complete energy independence. No grid connection means freeing yourself from the risk of power outages or fluctuating power costs. As you’re a producer of your own power you get a great amount of freedom... as long as your energy needs are low.
- It can be the most eco-friendly and sustainable home energy setup. Without the grid, you can minimise your carbon footprint. Your system won’t contribute to water pollution and greenhouse gases (except rarely, when you might depend on a generator).
Here are some of the cons of going off-grid:
- There’s no ‘security’ from using the grid as backup. You can’t rely on grid power during bad weather or if your system needs servicing.
- You’ll need more panels and a large capacity batteries if you intend to power an entire home. Batteries and generators are important to have, but they represent higher initial costs. Batteries have limited lifespans and can require maintenance, so those expenses factor in as well.
- You’ll have to tightly monitor your energy usage and lifestyle. With off-grid solar, you must use power sparingly. This might require big lifestyle changes, such as using most of your power in the daytime or tightly restricting night-time activities.
Both off-grid and hybrid systems are great ways go solar, but the right choice depends on your unique situation. Clearly, there are many details to consider... which is a lot to handle while you’re busy building your dream home.
To make it easier, talk to a solar expert who can help you navigate all the issues involved. It’s the most effective way to learn whether off-grid or hybrid solar is best for you. Contact the expert consultants at World Solar today.
Introduction
When researching solar energy power systems, homeowners have two options to consider: on-grid and off-grid solar energy systems. Both of these systems are helpful if you live in a state like California with ample sunlight. But on cloudy days or at night, these systems alone won’t continue to power your home and you’ll need other energy options. This is where hybrid solar energy systems shine. They will provide seamless backup during an outage and will help power your home when the sun isn’t shining.
A hybrid solar energy system is when your solar is connected to the grid, with a backup energy storage solution to store your excess power.
Advantages of Hybrid Solar Energy Systems
The hybrid solar energy systems have various advantages. Let’s examine a few of them:
Continuous Power Supply
A key advantage of the hybrid solar system over a traditional one is that it delivers continuous power. Because the batteries connected to hybrid solar systems store energy, they provide continuous power without interruption. During power outages, the batteries work as inverters to provide you with backup power for your home and important appliances. When the sun goes down or when there’s a power outage, batteries provide backup power to keep things running smoothly.
Utilize the Renewable Sources in the Best Way
Because the batteries are connected to a specially designed system that stores excess solar energy, there is no waste of unused power. So, these systems make use of the renewable energy in the best way, store energy on sunny days and utilize that stored power on cloudy days or at night.
Low Maintenance Cost
Another benefit is the system is cost-effective in the long run. Although the initial cost may be high, you will eventually save money because you will not have to pay for fuel (like you do with generators) and these systems don’t require frequent maintenance.
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High Efficiency
Unlike traditional generators, which can waste fuel under certain conditions, hybrid solar energy systems work more efficiently and sustainably. Hybrid solar systems generate power efficiently in all types of weather, storing extra energy for later use without wasting fuel.
Load Management
Traditional generators provide high output only when they are turned on. On the other hand, hybrid solar power systems store energy during the day and distribute it at night. A hybrid solar system may have technology that automatically adjusts the energy supply according to the power requirements of specific devices, whether it’s an air conditioner or a fan.
Disadvantages of Hybrid Solar Energy Systems
As with many things in life, there can also be some disadvantages to hybrid solar energy systems. Here’s a few of them:
Complicated Controlling Process
Because different sources of energy are used, it is helpful to be knowledgeable about those systems. The operation of different energy sources and the interaction between them can become complicated. The great thing is that by working with a trusted contractor, we will handle those complications for you.
High Installation Costs
While the maintenance cost is low, the initial investment for a hybrid solar energy system is higher compared to solar systems alone.
Less Battery Life
Home batteries connected to the system are often exposed to heat, cold or rain, so the system may have a shorter life span. This is less of a challenge if you choose the correct location for installation. (Another reason it’s important to work with an experienced installation team!)
The Number of Instruments Connectable is Limited
You can connect a limited number of devices to a hybrid solar energy system, and the amount varies from system to system.
Frequently Asked Questions About Hybrid Solar Systems
What is a Hybrid Solar System?
A grid-tied hybrid solar system includes home batteries that can store excess energy. A unique “smart” inverter in the system sends direct-current (DC) power to and from your batteries and channels alternating current (AC) between the grid and your home automatically. This allows for seamless backup power during an outage.
What are the Advantages of Hybrid Off-Grid Systems?
A hybrid system is less expensive to install and maintain than an off-grid one and you don’t need a backup generator to power it. Plus, you can decrease your battery size. Furthermore, compared with the high cost of diesel fuel, off-peak grid electricity costs much less.
Is a Hybrid Solar System Worth It?
Hybrid systems will save you money on your utility bills in the long run, making up for their higher upfront costs. Instead of selling your excess electricity back to the utility company, most (if not all) solar-generated power is stored in your home battery for future use.
What’s the Difference Between a Hybrid and Off-Grid Solar System?
Off-the-grid solar systems incorporate specialized off-the grid inverters and battery packs to store energy for two or more days. On the other hand, grid-connected hybrid systems employ less expensive, battery-based inverters and require a home battery with an overnight capacity of 5 to 10 hours.
Investing in a Solar + Home Battery System
With both advantages and disadvantages, more hybrid solar energy systems are being installed around the world in homes and businesses. Because energy storage is the key to unlocking the full potential of solar and wind power, it’s also the key to a clean energy future.
To determine if a Tesla Powerwall or SunPower SunVault home battery is right for your home energy needs, our certified Solar Technologies representatives can answer all your questions. If you’re ready to change the way you power your home and start saving more with solar, contact us today for a free customized quote.
Related Links:
What You Need to Know About Energy Storage and Solar Batteries
Home Battery Complete Review: Tesla Powerwall
How Long Will A Backup Battery Power My Home During An Outage?
Article Updated: December 2022. Originally posted in April 2018
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