What exactly is Grid-Tie system and exactly how does it work?

Grid-tie solar panel systems produce energy, transmitting this power to your utility company’s electrical power grid. Essentially, this implies the utility company will be paying out you to generate electricity for them, because the power you have produced counts against the energy your property or company utilizes.

Your own solar power panels may generate DC (Direct Current) electrical energy. This kind of electrical energy will be run through an inverter to generate Alternating current (Alternating Current) energy. This electricity is then run into your Alternating current electrical power panel, which feeds energy to your utility companies power grid. In case your solar energy array generated sufficient electrical power, your utility meter would certainly begin to run backward!

The primary components of an Grid-Tie system are:

Residential solar panels You will need solar panels to get the solar energy and transform this to DC power. The quantity and type of solar panels will probably determine the amount of power you’ll be able to generate, as will your current geographic position.

Combiner Box This box collects each of the Solar Panel connections.

DC Breaker Box Your array’s breaker safely shuts your solar power system on the moment’s notice, permitting risk-free maintenance, repair, and inspection.

Inverter Inverters get Direct Current power and transform it to household (Alternating current) power.

Grid Disconnect A grid disconnect allows you to stop the flow of electricity between your solar power system and your electrical system. This provides for the safe maintenance of electrical and utility systems.

What’s the cost?

The price varies, however, you could estimate it with relative simplicity; all you want to know is exactly what equipment you’ll need and also the labour price.

We have reviewed the essential components you will need for your solar array: the solar panels, a GFCI, a solar array breaker, an inverter, a grid disconnect, and an recommended rail system. If you won’t want to fuss with buying all these elements separately, you may be considering purchasing a Solar Grid-Tie System.

Grid-Tie Kits:

Affordable Solar offers pre-assembled Grid-Tie systems. Our popular system’s were mounted by many of our readers with a lot of good results. This system includes the entire equipment you’d probably need, such as product/installation instructions, mounting rails, and clamps for your solar panels.


Most solar energy systems are put together by the those who purchase them. In case you are uncomfortable setting up a system, Affordable Solar can suggest a Photovoltaic installation technician who can help with building a solar pv system.

An additional thought regarding labor costs: even when you’re comfortable putting together your solar energy kit, we extremely suggest contacting or selecting an electrician to connect your system to your Alternating current system.

What is the conclusion?

The GTS 3600 W system above will cost you something like $26,thousand.

Delivery is around $600 to any area within the continental US.

Without having a pitched roof (or want to mount panels on the ground), UniRac titlt legs cost an extra $1,100.

For the 3,600 watt system, you can count on an installation cost of $5,700 – $6,500.

(Installation, when you decide to go that route, may usually be estimated at about $1.75/watt.)

Consequently for this system you could potentially estimate kit as well as installation at about $32,500.

What exactly is my incentive in order to choose a solar panel system?

Many people connect solar technology with remote installations and off-grid implementations. In those situations the choice may be a fairly easy one, in towns and cities you may still find good reasons to consider solar panel technology as a supplement and substitute for electric utility power grids.

The top reason could be the reduction in utility expenses. As soon as your system is functioning, it takes no monthly costs and no maintenance (and most components are usually guaranteed). While it runs, it also lowers your power charges. Eventually it will probably pay for itself and keep costing you less. Big systems may even make you cash by giving you never ending credit with your power company .

Not only is your investment gonna help you save money as well as pay for itself, but photo voltaic installations regularly boost home price in both industrial and non commercial settings. Adding a solar energy system to your residence or small business will also supplement the investment you have made in your property.

An excellent incentive–many states (and today the government) provide refunds and also bonuses for implementing solar pv systems. !

Ultimately, solar power is really a clean way to obtain alternative energy. It lowers dependence on non-renewable fuels in a useful and efficient approach, helping keep the environment clean.

But where do I start?

Starting out may appear just like a challenging activity, but it isn’t as difficult as it first appears. Using just an electric bill, you are able to determine the minimum system size you will need. As soon as you have established that, you are able to find out how many solar panels you will need, and find compatible components from there.

To start, you will need the average month-to-month electric use–which you should be able to get in your energy bill. This number will probably be in kwh (kilowatt-hours).

Follow these actions to find out your minimum system size:

Record average kWH electrical use: __________kWH

Multiply line 1 by the percentage you want the solar system to produce: __________kWH ie: 1000kWH X 50% = 500kWH

Divide by 30 for the daily output from your solar power system: __________kW

Divide by the daily average sun hours for your location: __________kW 6 in Sun Belt, 4in NE / NW

Divide by 70% to compensate for system efficiency: __________kW

8 thoughts on “What exactly is Grid-Tie system and exactly how does it work?

  1. Viola

    Your website is really helpful and useful for a lot of folks – thank you for adding value to the internet! :)

  2. Tawanda Kanhema

    Nice job. It seems solar equipment is still very expensive… while many people might want to use renewable energy, the infrastructure is still heavily priced.

  3. Bob Adams

    I can afford to install a system several times what you talk about. I live in a hurricane area that can be without utilities for a week or more. I want to be able to live like normal during an outage. The selling excess back to the utility company when I don’t need it is also of interest. My roofs are tile and I would prefer having a ground mounted system within a walled area. I have the yard size that make this easily done. From what I read, I can connect and disconnect the grid as I see fit. I need to be referred to a company that can help me accomplish this.


  4. smriti

    I wanted to install a solar panel o my roof of 10ft* 10ft, could you approximately tell te cost for it

  5. Kingsley Asanji

    I live in cameroon in the city of doula.I tried to install 2 pv panels of 100watts each,a 50amp charge controll unit,a 2000watt inverter and 2 battery of 120amp each,the system does not function because it runs out of ac power if a small load is applied.I will like to know which setup is required for the backup battery to have continues charge inorder to sustain the ac load supply?

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