inverter grid
Wednesday, April 28th, 2010
How does a grid solar inverter get power to flow to the grid?
I seem to get condradictory results in web searches. Some sources say the inverter only matches the grid voltage, while others say the inverter puts out a slighty higher synchronised voltage. If it just matches…than I gather to low resistance of the grid will allow current to sourced out? Appreciate any enlightment
A basic inverter converts DC into 120 VAC. The DC may come from batteries charged by a Solar panel or directly from a Solar Panel (during the day).
A more sophisticated Grid tie inverter will match the AC sine wave being produced by the inverter circuit with the sine wave of the line power being produced by the power company.
This is called synchronization, the matching of power sine waves being generated so that they may be electrically connected together.
As the home uses electricity its needs will be met by power being supplied by the power company or from what ever power is available from the solar system via the inverter.
If more power is being producd by the solar system than what is required. The excess is either stored in batteries OR is allowed to flow back onto the power line. If you can send power “back to the power company” (the grid) your electric meter will run backwards (Net metering) giving you credit for the power you are supplying to the grid.
If you need more power than what you generate then your electric meter would run slower because you are not using all of that power from the grid, you are generating some of the power so your electric meter only needs to pass the electricity to make up the difference .
TIE GRID INVERTER 2009
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Xantrex TR Series 3600W 24V 120VAC inverter $1,200.00 Trace Series – TR The Trace Series Inverter/Charger is an economical power conversion solution designed to provide dependable modified sine wave electricity to essential circuits in the home or business during a power outage. It can also be used in conjunction with a generator or any renewable energy source in an off-grid application. 2-year warranty…. |
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Learn Sun Power:(DVD) How to Set up Batteries, Inverter, Charge Controller, and Panels for a Complete Off-grid Solar Energy System $39.95 If you want to put together a solar power system yourself this DVD is for you. Although it covers an off-grid system it is just as helpful for someone who wants to be partially on grid but would rather set up the system themselves. This is not an overview but rather programmed instruction. This DVD shows, step-by-step, how a 650-watt, off-grid, do-it-yourself solar-panel system was set up. The sys… |
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Solar Inverter Off Grid 3000W $1,077.29 Getics Off-Grid Inverter contains three modules in a single unit: inverter, smart charger and switch. The inverter is a heavy-duty, continuous working module generating a sinusoidal wave from a 24V battery bank which can supply energy to various loads such as resistive loads (heater), inductive loads (air conditioners, refrigerators), motors (vacuum cleaners), and rectifier loads (computer). Thi… |