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Utilize grid-tied solar systems to reduce your electric bill.

That means for most people a huge consumption of electricity, spending more time working from home and also more time living at home. However, the On Grid Household Distributed Solar Systems can help you with your power consumption and it represents a top-notch lifestyle.

In return, for business owners, costs will be lowered and revenues enhanced. Other highly valued intangible advantages include energy independence and a cleaner, healthier lifestyle.

On-grid household distributed solar systems assure you of reliability and affordability - its the smartest one-time investment. It saves money and electricity, boosts up your property value by providing quick return on investment, positive return on investment.

Besides solar power, grid tie systems can also use wind turbines to generate electricity or both - also read Residential Hybrid Energy Systems.

On Grid Household Distributed Solar PV Systems

How Does On Grid Household Distributed Solar Systems Work?

The grid-connected solar systems do not have batteries, which mean that the systems don't necessarily require physical batteries to store energy. This is because it is hooked to a larger "battery"-the utility grid-that stores the generated power during the day from the solar panel and then makes it available to consumers at night. It is virtual because it does not come with actual storage through a physical battery, but through the balance of supply and demand on the grid.

The electric power from the solar panels during the day is transformed to an electric current suitable for the grid by a Grid Tie Inverter, then transferred to the users' equipment and to the utility grid.

The energy can be used at night, even though the solar panels are not active at that time.

In return, installing solar panels can give you the opportunity, depending on your local grid provider's policy, to sell excess powers and earn from it. In this manner, users are able to save from paying high electricity bills but also gain extra from selling the extra powers.

On Grid Household Distributed Solar PV Systems System Diagram

On Grid Household Distributed Solar PV Systems Diagram

What Considerations Should Be Made When Connecting a Residential Distributed Photovoltaic System To The Grid?

  • Safety:

    • 1. Whether the parallel grid point switch meets the safety requirements.
    • 2. The safety of the equipment in case of a grid anomaly or fault.
    • 3. Whether the equipment can be reliably disconnected in the case of a grid outage to ensure personal safety.
  • Configuration Aspect Related to Photovoltaic Setup:

    • 1. Configuration of the capacity of PV, i.e., the number of PV panels to be installed.
    • 2. Main equipment selection like PV, inverter, etc.
    • 3. Determination of the point of common coupling, i.e., to determine exactly where the PV system shall be connected to the grid.
    • 4. Implementation of monitoring and control functionalities in order for the system to operate normally and monitor.
    • 5. Configuring anti-islanding devices and installing them in such a way as to prevent the PV system from further feeding power in the case of a grid outage since this may cause safety hazards.
  • Metering and settlement issues:

    • 1. The billing and settlement methods, i.e., how to calculate and pay for the electricity generated by the PV system.
    • 2. The feed-in tariff situation, i.e., the price at which the electricity generated by the PV system is sold to the grid.
    • 3. Materials, data, and processes required to obtain the tariff subsidy include documents and steps that shall be required to apply for the subsidy.

What To Do With Excess Power

I don’t want to sell electricity

  • Prevent solar current from being fed back into the utility grid:
    But if the user doesn't want to allow flow of solar power back to the utility grid, then a CT ammeter can be added at the AC output of the grid-connected power inverter. The CT ammeter measures the current and thereby prevents the flow of current to the grid from the solar source.
  • Battery-less system:
    This sort of system does not sell power to the grid. It is characterized by the photovoltaics, or solar panels. Unlike traditional grid-connected systems, a battery-less system might provide power in case of a grid failure since it does not rely on the grid or backup power from a battery. Provided there is sufficient sunlight, a battery-free solar system can provide continuous power.

Residential PV Systems

Residential photovoltaic systems

I want to sell electricity

  • Application Filing:
    Submit the Application for Grid Access to the Grid Company
  • Application Form Filing:
    Fill out the Official Application Form for Access at the Customer Service Centre
  • Confirmation of Scheme of the Program:
    Confirm the Scheme of access system provided by the grid company
  • Grid Connection Acceptance:
    In case of completion of the project, apply for the Grid-connection Acceptance and Commissioning
  • Grid Enterprise Work:
    The grid enterprise should install power metering devices and sign power purchase and sale contracts, and take an acceptance and commissioning check of the grid connecting.
  • Grid-connected power generation: 
    The project is formally connected to the power grid. Besides, a feed-in tariff agreement should be signed with the power grid company.

“self-consumption with surplus electricity fed into the grid”And “full feed-in tariff”

What is “self-consumption with surplus electricity fed into the grid”?

Self-consumption with surplus electricity fed into the grid: this is a resident consumption model for distributed PV systems. In this system, the PV system connects to the user's electrical meter on the load side. It needs an extra meter to measure the amount of electricity fed back to the grid, or the existing grid meter should be set up for bidirectional measurement. The electricity which the user consumes from the PV system is used to reduce his/her electricity bill at the retail rate of electricity. The surplus electricity, which is fed back to the grid, will be measured separately and settled at a specified feed-in tariff rate.

What is “full feed-in tariff”?

The "full feed-in tariff" refers to the consumption pattern of residential distributed PV stations. On the user's side, the supply side of the electrical meter is connected to the grid. The electrical output of the PV station flows into the public grid and is settled according to the given feed-in tariff price.

self-consumption with surplus electricity fed into the gridfull feed-in tariff

How to Define Residential Distributed Photovoltaic Systems Installed by Individuals (Households) ?

About residential distributed photovoltaic power utilization, the main equipment is designed for self-consumption, meaning that surplus electricity will be fed into the grid. The excess and shortfall in this kind of electricity are managed through the grid. Automatically, PV electricity used by oneself offsets the consumption from the grid without any trade. The excess PV electricity fed into the grid is traded by the grid company at the benchmark price of local coal-fired power.

What Can Huijue Do For Your Home?

Solar system connection in the home at night

  • Huijue is a company with 20 years of experience in the renewable energy sector, with a friendly, professional, and competent team.
  • Customized service: Huijue can provide customized solutions for the specific needs of its customers and also adapt and renew product features by offering technical support for life.
  • Quality and Import: Huijue ensures that the products are of good quality and can be imported into the country of the customer.
  • Pricing and Packaging: Besides competitive pricing, Huijue provides integrated packaging services, which pack the decentralized system configuration into individual pallets, reducing shipping volume and saving customers the costs of shipping.
  • Unique Solution: Huijue offers solar power systems that can all be packed into one box for easy transportation and installation.
  • Customized solutions: As each home consumes a different amount of electricity, Huijue provides customized solar solutions for diversified situations.
  • Team experience: The Huijue team has extensive experience in designing solar solutions and can work with existing power generation equipment (e.g., diesel generators) to provide a complete solar solution.
  • Installation and service: The customer can install the solar power system directly after receiving the goods without purchasing other equipment on the site, and Huijue also provides complete installation and after-sales service.
  • Global customers and quality assurance: Huijue solar solutions are catered to global customers and provide top quality at a world-class level. Consumers only need to follow the instructions regarding proper connection and use, without excessive investment for maintenance.
  • Quality control: Huijue invites third-party organizations such as Bureau Veritas, CCIC, Intertek, etc. to conduct quality control safety inspections before each shipment to ensure product quality.

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