Tag Archive | "Inverters"

Power System for Remote Homes and Cabins

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In this current technology world no one would prefer bringing utility company power lines to any new remote area. The main disadvantage in bringing the power lines from any utility company costs a person hundreds and thousands per each foot.

Solar and wind generators can be considered as a solution of above expensive problem. Furthermore, person can free himself from expenses of monthly electricity bill.

Important Features:

1. A person pay far less as compare to utility companies to bring power to your remote area.

2. No more Monthly ongoing bills.

3. Now by the existence of this technology no more power poles required. That in return increases the resale of a person’s property.

There are many configurations some of which are discussed below.

DC Only System:

To maintain a charge in the batteries, small wind generating system or solar array is used. It is important that such system should be used in small cabin. And make sure that all appliances should be operated with DC only. As a matter of fact, DC appliances are more expensive then the AC one. But in long run it would be a better choice. DC appliances could be bought from RV supply houses.

Size Of DC System: 

First thing to be considered is size. Size of the solar module or wind generator must be very appropriate. So that it could easily fulfill the power requirement of one day. It creates no disturbance in the efficiency.

Mounting Kit Of DC System:

DC system requires a mounting kit whose duty is to mount systems on the roof or on any open place near the cabin. These modules are normally mounted either flat or a bit tilted. A rack should be used that could be tilted. So at noon time module can point itself directly towards the sun.

Resistant Wire Of DC System:

Sunlight resistant wire, generally of 10 gauges whose main quality is its protective sheath. That can work for a long time in exposure without any harm. It may excel the efficiency of the DC System.

Charge Controller:

A charge controller is required in solar modules that could prohibit the overcharging of the batteries. It also resists in draining back of the batteries. Usually, in small wind generator we have charge controller built in. So an external charge controller is not elementary in wind generators.

Fuse Holder:

A protective fuse and fuse holder, of about 10 to 50 amps. It’s important that fuse should be deployed close to the battery. It must be connected to the positive terminal of the battery. Fuse amperes could vary with the number of modules in the cabin.

DC Distribution Panel:

A fused DC distribution panel is required in order to distribute the Voltage all over in the cabin. Distribution can be made by direct connection or female cigarette outlets could be used. It regulates the voltage level.

Powerful Batteries:

Some very deep cycle batteries of appropriate size can manage with the loads. That is supposed to take power from this bank. Batteries must be powerful so that after day consumption it should not be discharged below 50%. It is to be noted, for long life of batteries they must not be discharged below 50%.

DC/AC System without AC Powered Charger:

The construction of such is totally similar to the DC only system with one additional component known as inverter. The purpose of inverter is that it changes DC in AC electricity. This AC electricity can then further be used in household components as microwave ovens, computers, fans etc. One another change in this system is that regular household AC outlets. It took place instead of cigarette lighter outlets.

Powerful Invertors:

Inverter used must be enough powerful so that it can produce continuous power to run the appliances smoothly. Secondly, inverter must have high surge so that heavy loads such as motor, microwave etc. could be easily started.

Size Of Invertors:

Appropriate size of inverter DC cables is very important. The size of the cables must be suitable in both length and diameter. It’s highly recommended that 10 feet 4/0 cable is used with the inverter that is rated 12 Volts at 1500 watts.

DC Fuse:

DC fuse or disconnect would be required of appropriate rate. Similar to DC only system it must also be deployed to battery. It should be connected with the positive terminal. Use the fuse that is specially designed for DC use, or else your equipment would be of no use.  The bad thing is it may result fire in the cabinet.

AC Circuit Breaker:

AC circuit breaker panel must be used for the protection of inverter and the loads. The panel should be mounted between inverters and loads. It increase the protection and safety.

Inverter Types 

There are two basic types of inverter that converts DC to AC. First one is Modified sine wave Inverter and the other is pure sine wave Inverter.

Modified Sine Wave Inverter:

Modified inverter is the one that produces a sine wave that is approximately similar to the one produced by the utility company. This inverter is very efficient, reliable and required no virtual maintenance.

Sine Wave Acts Like Square Wave:

Sine wave produced by Modified sine wave inverter is like a square wave. Frequency and Voltage is constant that do not allow brownouts or spikes. As seen with utility company power. Appliances like stereos, computers, TV’s, inkjet printers etc. are preferred to be run on modified sine wave inverter. Today 95% cabins are enriched with such type of inverter.

Pure Sine Wave Inverter: 

This is the type of inverter that produces exactly the same sine wave, as the one produced by the utility companies. It also prevents brownouts and spikes. It’s less efficient as compared with the modified sine wave.

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Solar Backup: A Solution To Power Failure

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Solar backup systems are one reliable backup support system. In case of power failure this option of solar backup can serve the cause petty well. Inverters will assist in this operation of electricity supply in power failure.

Introduction To Solar Backup

Introduction To Solar Backup
Sunny Backup is one of the common given examples of solar backup. This is manufactured by SMA Solar Technology. This solar backup system can reliably supply power for electric supplies in case of original power failure. Switching of power from one medium to the backup is quick and fast as well. It takes this solar back a total of 30 milliseconds in this conversion. This is as quick as ever even at night. Solar back u system can be installed in existing solar power system. This process is both simple and quiet cheap. Once the backup is installed there are no major side effects to the efficiency. Solar back up can obviously be added as a whole new gadget.

How The Solar Backup Operates?

In normal condition solar power is fed into public network. This process involves use of many inverters. But in case of power failure, the scenario is different. Read the full story

Solar Inverter and Its Applications

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Solar inverter is a great tool that utilizes sunlight and converts it into reusable electricity. It is an integral part of a solar generator. Solar inverter can be bought separately or along with the solar panel and battery for setting up a fully functional solar power system.  If you are considering buying an inverter separately then make sure you are going to buy an inverter that matches with the wattage output of the solar panel that is installed in your home.

Working of Solar Inverter

Working of Solar Inverter

Solar inverter works on a very simple principal that is receiving sunlight by the solar panels and conversion of that sunlight by the help of solar inverter into reusable electrical power.

Standalone Inverter

The power that is generated by the solar inverter is stored in batteries. This is the point where inverters are needed. Solar inverter converts the direct current (DC) that is stored in the battery. That DC is converted into the alternating current (AC) that is then used for domestic purpose for powering electrical equipment and devices. The inverter that performs this simple task is referred to as the standalone model.

Synchronous Inverter

In this type of inverter energy from the photovoltaic (PV) module or a solar panel is directly connected to the utility grid, in such a case a grid-tie inverter or a synchronous is required for that energy. The synchronous inverter performs the same function as the standalone inverter does. It converts the direct current (DC) into an alternating current (AC). Read the full story

Photovoltaic (PV) Cells

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In this modern era, people are looking for sources of creating usable electricity which is not only reliable but also environmental friendly. Due to this demand or interest, researchers and scientists started working on this project. They found many solutions but the best solution was Photovoltaic Cells.

What Is a Photovoltaic Cell?

What Is a Photovoltaic Cell

A photovoltaic cell is basically a device which generates electricity just by using energy from the sun. A photovoltaic cell does not require any fossil fuel for its operation and hence it is the most clean and environmental friendly source of electricity.

Composition of a Photovoltaic Cell

A photovoltaic cell consists of a diode. A diode conducts electric current through conducting materials as well as insulators when the electrons in the diode are provided with sufficient energy. This energy can be provided by any mean including heat energy from the sun.

How Photovoltaic Cells Work

The light rays from the sun carry the energy. When these light rays strike on the photovoltaic cell, the energy from the rays is transferred into the atoms of the semiconductor which in turn release electrons. These electrons are the charge carriers and hence they start conducting electrical charge in the form of a Direct Current. This Direct Current then enters the inverters which converts this Direct Current into usable Alternating Current. This Alternating Current can then be fed through the utility panel and then used to power up anything.

Extrinsic Semiconductors

Silicon is the most common semiconductor because of its physical qualities. Most semiconductors are fabricated using silicon. This may be due to the fact that silicon is more durable and also stable at higher temperatures. Read the full story

Disadventages of Solar Water Heater

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The use of solar energy as an alternative source of energy is on the rise. Several equipments and house hold items are run on the power generated from the sunlight. These items include solar powered lights, solar inverters, generators, and solar water heaters. Solar heater provides the facility of warm water whenever needed. It is no doubt that solar water heater come with advantages, but there are certain disadvantages of solar water heater as well.

Soaring Prices of Solar Water Heaters

Solar Water Heater

There are several types of water heaters available in the market. People purchase these heaters according to their affordability and according to their needs. Though the sale of products which run on solar energy is on the rise, but not all the people can afford solar water heater, or require them. There are heaters which use gas or electricity to produce heat. These heaters are cheaper than the solar water heaters.

If a comparison is made between the prices of gas or electric heater to the prices of solar heater, you will see an astonishing difference. A solar water heater can cost you from 800 USD to 32, 00 USD. The cost of solar panel used in the heater makes the price of the solar water heater high.

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New York’s Residential Wind Energy Rebates

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With the utilization of wind energy and other power proficient expertise in your house, you can support to provide the pollution free atmosphere. It will also shrink the conventional source of energy that is dependent on relic fuels which are not only expensive, but are also quickly depleting. In this regard, LIPA (Long Island Power Authority) always provides you useful information about the use of alternative energy resources.

Tips of LIPA’s Wind Energy Discounts and Rewards

Here you will find the course of action regarding the LIPA’s wind energy price cuts and other motivation factors.

LIPA Wind Energy Price Cuts for House owners

New York's Residential Wind Energy

  • You will be able to save US$3.50 for the usage of one kilowatt in an hour (kWh). In a year time the normal production is around 16,000 kilowatts per hour.
  • To get benefit of these rebates, an individual must be an inhabited power client situated in the “Long Island Power Authority” service terrain.
  • Solitarily, the fresh Wind Systems attached to the network and the recent kind of inverters that have already been examined by the Public Service Commission will qualify for LIPA discounts. The Wind System must also be in the list of LIPA’s permitted paraphernalia.
  • The new apparatus must be fixed up specifically in line with the prerequisites of the company. The presented towers must be with the rationalized building authorizations. The engineering illustrations must be endorsed by some of New York State accredited   qualified engineer.
  • A parameter for system evaluation is mandatory to calculate the amount of power produced.

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Why Do I Need a Solar Inverter?

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A set of photovoltaic consist of silicon wafers which absorb sunlight form the atmosphere and convert it into electricity. The electricity so produced is direct current (DC) which we cannot use directly to run our daily household electronic or electric devices. In order to convert the DC into alternating current (AC) we need an electronic deice commonly know as solar inverter. The current so generated by using the direct current by the inverter is used to power our daily household electricity consuming equipments.

Direct Current Functions

Direct Current Functions

Direct Current represents flow of electrons in one direction with a regular strength. The flow of the electrons is from negative node to the positive one. To understand the flow of direct current one can take case of batteries commonly used in vehicles or even smaller batteries used in battery operated devices. Other examples of DC are solar power cells, solar power systems etc. Although, almost every electronic circuit operates on DC but the problem with DC is it cannot be transmitted to use it away form its original place of generation.

Alternating Current Functions

Conversely the alternating current (AC) continues change its direction and its strength also keep variations. Probably due to the rapid change in directions of the current on alternates it is named alternating current. Step-up and Step-down transformers are used to increase and decrease respectively the voltage power of AC. Due to this functionality the AC is easy to transmit from the location of its generation to the locations of its use.

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Solar Inverter

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Solar inverters are devices which convert direct current into alternating current. DC, commonly known as direct current is in a straight line form, and is not suitable for home appliances. We use AC or alternating current to run our domestic electronic devices. Solar inverters, as is evident from the name; work on the energy obtained from the sun.

 

How Electric Current is Produced?

Solar panels receive energy from the sun. This energy is in the form of light. Light is transferred to the photovoltaic cells which are mounted onto the solar panels. Photovoltaic cells are made of semiconductor layers of gallium or crystalline silicon. The semiconductors on the solar panel are connected through a junction, and contain both positive and negative layers.

When the heat reaches to the solar panels it is absorbed by the semiconductor elements affixed on them. The energy breaks the loose electrons of crystalline silicon or gallium. The loose electrons start a very fast motion from the negative layer of the photovoltaic cell to the positive layer of the cell. The fast motion of electrons produces electric current. The current generated because of the motion of the electrons in the solar panel is either stored into a battery for later use or is sent to the inverter.

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More About Solar Inverters

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Solar inverter is a complex form of solar energy. It can also be referred as a type of electrical inverter. Solar inverter is made to change the direct current (DC) from a photovoltaic array into alternate current (AC). It can be used by home appliances and possibly a utility grid. For all solar power systems, an inverter is required to make electricity usable for consumers.

Solar penel

Solar inverter being an alternative energy system is often very costly for users. Therefore, to save money, people are looking for a smaller capacity inverter that could fulfill their needs. There are ways to get out of this problem. For instance, people should buy the fewer solar cells initially, and then add more with the passage of time.

Types of Inverters

Solar inverters could be classified into three broad categories:

Grid Tie Inverters

Grid tie inverters match phase (waves) with a utility-supplied sine wave or sine curve. For safety reasons, these inverters are designed to shut down automatically upon loss of utility supply.These inverters can not provide back up when a power supply or other service is not available.

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Solar Inverters and Converters

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The device which converts direct current (DC) produced by a photovoltaic panel into alternating current (AC) is generally known as solar inverter. The electricity produced by photovoltaic panel is in form of direct current (DC) which could not be used to operate home electric devices. We need to convert it into alternating current (AC) to operate our home electric or electronic devices.

solar system

Never Purchase Inverter of Low Competence

Normally the solar inverter is considered one of costly components of the alternate energy technique. Dueto this, majority of the purchasers of solar energy systems misjudge the voltage power competence of the complete system and tend to buy an inverter which is of lower power. Therefore, the experts suggest that you buy lesser quantity of solar cells primarily, and purchase an inverter of higher capacity and later extend the quantity of your solar cells. It will save your costs after installation of the solar energy system.

The size of solar inverter market is big enough and there is tough struggle among the market participants. In recent past it was ascertained that American producers were producing such inverters which were not working on their labeled power and it threw many American manufacturers out of the market. This paved way for global inverter manufacturers to enter into the market and now the most popular brand are European.

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