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Grid-tied solar systems are connected to the power grid. Grid-tied solar owners enjoy the benefits of a solar system that can tap into the grid if solar energy production is low.
This system is ideal for balancing power production. Solar energy fluctuates based on weather conditions, time of day, and seasonality. If solar energy is low, homeowners can use the energy grid to power their home with no concern as to whether they’ll have enough power for prolonged periods of low energy production.
Grid-tied solar power systems are by far the most common type installed on homes and small to medium-sized businesses. This is in part because they can utilize the grid to help regulate the delivery of power from the panels into the home or business, thus reducing the amount of equipment needed, and the overall cost of the system.
This interplay between home solar and the power grid is a great way to balance power production, and avoid outages should solar power supply be limited.
Off-grid solar systems are not connected to an electric grid, and utilize battery storage systems to balance energy demands.
Houses with off-grid systems rely entirely on solar energy. Batteries are necessary with such systems—a home or business without a battery storage system wouldn’t be able to use electricity at night. The battery system stores excess electricity produced during the day, which can then be used at night to keep the lights on.
Off-grid systems offer complete energy independence. However, there are a lot of limitations when compared to grid-tied systems. Off-grid systems and the batteries where they store electricity must be much larger compared to grid-tied systems, as they serve as the sole source of power. Houses using such setups must be smaller and more conservatively designed because battery storage systems have limited capacity. Even massive battery systems don’t have the capacity to power an entire home for more than a few hours.
Off-grid systems are also more costly, as they can’t utilize grid-based equipment to regulate power flow. Instead, this equipment must be installed as part of the system, increasing the overall cost.
A hybrid solar system is a combination of grid tied and off grid. These systems are connected to the power grid and come equipped with their own battery storage system. Hybrid systems are the most flexible option available, offering the ability to draw energy from the grid or draw energy from the battery when energy demands outpace energy production.
As with grid-tied systems, hybrid owners can benefit from net metering, a program that allows PV owners to send the excess power generated by their system to the municipal power grid for a bill credit. But in places where net metering is unavailable and grid-tied owners are limited, hybrid owners can still source energy from their battery storage system. Storage-plus-solar is a great way to compensate for a lack of net metering benefits. And unlike off-grid systems, if you draw your battery down to zero, you can simply use energy from the grid to power your home.
Sun Synk
Thinking about getting an inverter?
All you need to know about getting an inverter installed in your home.
Sunsynk is leading the way with our revolutionary energy storage systems and inverters.
Sunsynks Bi-directional Inverter
Sunsynk and our partners have invented a new type of inverter, called a bi-directional inverter. It is a device that connects between the battery and your mains AC connection. This allows you to fast charge a storage battery during the day when AC power is cheap, saving the excess power that you’re not using, so that you can use your stored power in the evenings when energy prices are higher. An additional device called a CT coil, which is included with the inverter, is used to detect any power that is not being exported and prevent it from feeding back to the mains.
Higher yields.
- Improve self-consumption ratio up to 80%, reducing your electricity bill.
- DC/AC ratio up to 1.3, completely suitable for double-side PV modular.
- Two MPPT design, Max. efficiency of 97.6%.
User-friendly.
- LCD Touch screen and buttons, easy operation.
- Compatible with lithium-ion battery and lead acid battery.
- Web browser and mobile App monitoring supported.
Reliable.
- PV lighting protection, Anti-islanding protection, Leakage current protection etc.
- Support store energy from DG when needed, ensure the system working within 7*24H.
- IP65 protection degree, adapt to indoor and outdoor using.
- Automatically switch from on-grid to off-grid mode within 5ms.
- Zero exporting function, fast reaction within 200ms in zero export mode.
Smart.
- Programmable charging and discharging schedule.
- Both wind turbines and solar panels can be connected as DC input power.
- Max. 16 units can be paralleled for higher system power.
- Retrofitting of existing solar system to energy storage system.
