Let’s take a look at Synchronous Solar Panel Inverters…

2. Synchronous Solar Panel Inverters

Synchronous solar panel inverters are also called Grid-Tie Inverters. If you want to have a grid-tied solar power generator, a synchronous solar power inverter will suit you well.

This type of inverter takes the electricity generated by your solar generator and feeds it to the distribution panel in your home. The power is either used by the appliances at home or flows out to the utility grid. If you generate excess power, you are able to sell the energy to your utility company at the rate you’re charged.

When there is no solar energy available during cloudy days (and at night), the system seamlessly taps into the grid supply to make up the difference in power.

As such, you are able to use energy from the grid or from the photovoltaic panels. With this design, you will not need to worry about an increase in energy consumption. In case the solar panel system you design is a little too small, you can use the grid power to supplement your consumption.

Next, let’s go see what a Multifunction Solar Panel Inverter can do for us…

Click Here To Read More About Multifunction Solar Panel Inverters

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Solar Trickle Chargers are small, low-current solar panels used for maintaining storage batteries for your vehicle or boat. Why will you need to maintain them?

All batteries lose charge over a period of time because of self-discharge. By using a trickle-charger, you can replace those lost power. This helps to extend the lifespan of your batteries and ensures you have a smooth start every time you turn the ignition. There is no fear your vehicle or boat won’t move after storing away for a long time.

Since we only need a small current to maintain the batteries, solar panels will be the ideal candidate. As long as there is sunshine, you can be sure your batteries can be maintained in top condition.

But not all solar panels can be used for this purpose. You have to make sure the trickle is large enough for your battery size.

First, you’ll need to find out how big your batteries are. This information is usually written at the side of the battery. If no information is available, try looking up the model on the Internet. Most of the time you’ll find what you want.

If your battery is rated at 100Ah and you estimate that it’ll lose 30% of its power every month, you can work out the power loss per day. (This is about 1% every day.)

Next, find out the sun hours you receive at your location. With this figure, you can divide the energy loss per day by the sun hours per day to determine how much current your solar energy panels need to generate.

If you’re lost, solar trickle chargers will usually have specifications that show you what battery size its suitable for. Have fun!

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Different manufacturers produce varying solar panels quality. While better quality panels command higher price tags, they tend to last much longer. This additional lifespan often justify the added expense. However many people will rather save money by choosing lower quality solar panels than cough out the difference for higher quality ones. This is understandable.

As solar panels produce electricity under the effect of sunshine, they begin the irreversible process of aging. When they age, their resale value decreases. Thus it is important to verify with your sales representative the age of solar panels you are receiving. Stored solar panels, on the other hand, maintain their full lifespan. Thus solar panels do not lose their value while kept on shelves unless a new technology renders them obsolete. By then manufacturers will have to slash their price to move them out of the storehouse.

Despite their image, used solar panels aren’t all that bad when it comes to payback period. Although they have a shorter lifespan and a slightly lower efficiency, most of them are still in good working condition and can last many more years. Best of all, they’re cheap. Therefore you should keep your mind open — as long as the price per watt and warranty conditions justify the purchase, you should be on your way to purchase cheaper energy.

As technology improves, the cost (per watt) of solar panels decreases. Currently, consumers often get solar panels below $5 per watt. Understandably, prices vary from location to location. Therefore you have to contact a few solar panel manufacturers to understand how they price their products before you sign on the dotted line.

If you want to install a solar panel system that can supply your entire house with power, it is not surprising to find manufacturers quoting you a whooping $25,000 to $30,000 for the entire installation. This may appear to be expensive. But the system can serve you for more than two decades and they usually pay for themselves slightly after the first. Therefore you’ll be able to live on free electricity for another ten years after the payback period.

Certainly, a manufacturer’s quotation depends on how big your house is and your average electricity consumption. If you’re able to find and eliminate energy wastages around the house, you may reduce to a smaller system. This means you end up paying less. In every household, there are wastages that account for a huge portion of energy consumption.

An alternative to commercial, off-the-shelf system is the DIY solar panel. Those of us who are apt at working with simple tools and electrical circuits can make for ourselves a homemade solar power system. Do not be mistaken…these are not some shoddy projects that over-the-edge enthusiasts make. The solar cells and related components are from renowned manufacturers. The DIYer’s only involvement is putting various components together to make a solar panel, and then install this solar panel on their roofs. These can last as long as commercial panels at a fraction of the cost.

Whatever your choice may be, understanding the cost of solar panels involve a little fact find. Hopefully, if you compare between suppliers, you may be able to find a solar power system that suit your budget and energy needs.

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A Solar Pathfinder

The Solar Pathfinder is a standard shade analysis tool. You can use it to find out exactly where the shadows will be at particular times of the day or year. The data is in graphical form, so you can make sense of it at one glance.

Another popular tool is the Solmetric Suneye. This instrument is rather user friendly, but is much more expensive than the Solar Pathfinder. This will set you back by at least $1,500…yet there is a cheaper option.

Why Do We Need To Use A Solar Pathfinder?

A proper instrument like a Solar Pathfinder can save you lots of time and guesswork. Moreover it is reasonably easy to use and is affordable.

If we do not have any instrument to predict shadow positions, we’ll have to sit up from dawn to dusk to observe how they move. This is a waste of time! Moreover, these positions shift (slightly) through different seasons because of how the earth rotates around the sun.

But why do we care so much about the extent of shading? You may not realize this, but the effect of shading is devastating to solar energy production. Even if your solar panel is slightly covered under a shadow, the power output can drop drastically.

Consider this…if you shade only one solar cell out of the entire solar panel, your energy production is likely to drop by a third. If you shade a row of photovoltaic cells, your electricity output reduces by about 90%. This means your solar panels have virtually stopped working!

Therefore when installing your solar panels, shading is your first and most important concern.

But is it worthwhile to use a solar pathfinder? Perhaps we should ask ourselves if we could determine shadow positions without the use of a scientific instrument… In fact, the additional electricity you’ll be able to generate quickly covers the cost of the Solar Pathfinder. This is especially true for larger systems.

After all, you’ve invested money and effort on your solar cells, batteries and inverters… Are you going to sacrifice a potentially significant part of its energy output just to save a few bucks? I hope not!

In case you are thinking of installing solar panels without a Solar Pathfinder, drop the idea as soon as possible. Because guesswork will eventually cost you dearly! You may be concerned about the cost…or you may be worried about the complexity of the instrument. The fact is this instrument only costs $249 and you’ll probably take only 15 minutes to learn how to use it.

Whatever it is, if you’re without a Solar Pathfinder, I’m confident of this — you cannot even begin your installation… Without this instrument, you’ll be lost!

To use a Solar Pathfinder, you simply have to bring it to the spot you feel is most suitable for installation. Then you’ll need to level the instrument and point it to the right direction with the help of an in-built compass. The plastic dome will show you a paranomic view of the entire area together with the regions affected by shading over different times of the day or year.

To record your readings, you can use a wax pencil (or grease pen) to outline the shadow or simply use your digital camera to take a snap shot. (I prefer the second approach – it’s instantaneous!)

The effects of shading are exceedingly damaging to solar energy production. Therefore you need to eliminate the guesswork — which can end up costing you a lot — and adopt a scientific approach to install your solar panels. Among all known techniques, the easiest and cheapest way is to use a Solar Pathfinder.

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