solar panels calculator
solar panels calculator
How to calculate the costs and requirements Watt Solar Panel
With our current economic meltdown and energy prices fluctuating all day, many of us think of installing solar panels to contribute to the energy needs of our houses and cut our bills energy.
But how many watt solar panel to say what we need to halve our energy bills? How much does it cost us the power to install software?
Here is a four step process, you can take to address these two fundamental questions:
1 – Calculate the daily energy Used
To do this, get your last 12 monthly energy bills and calculate your average kilowatt hours (kWh) per month of use. The reason 12 is that we use our energy consumption varies seasonally. But if you do not have all your energy bills, then you should use one of the last month.
Then divide your monthly consumption by 30 (The average number of days in a month to get their energy for daily use.
– For example: If you have a consumer energy 800 kWh per month, your daily dose is 800/30 = 26.7 kWh per day.
– Now if you want to halve your energy bill while only you need to produce 26.7 / 2 = 13.4 kWh of energy-watt solar panel per day.
2 – Calculate total solar watt requirements group of:
To do this, you must first determine the number of hours of sunlight in the area receives each day. This is a map of the solar radiation very useful – you can see one of our original article on our site.
Once you know your hours of sunlight per day, return to your kWh per day is necessary and divided by hours of sunlight per day, and then multiplied by a factor 1.25 (taking into account the energy losses of cables watt solar panel battery and inverter)
– Continuing with our example: Our watt panels Solar similar needs:
13.4 kWh / 5.5hrs x 1.25 = 3045 watts or 3045 kilowatts per day.
This means that we need solar panels capable producing at least 3045 watts of power.
3 – Calculate costs watt solar panel:
This step will help you calculate the cost solar panels needed to power 3045 W. When the higher average cost solar panels in the U.S. is $ 4.85 per watt.
– In our example we are going to cost a maximum of 3045 x 4.85 = $ 14,768 to install solar panels to reduce by half the electricity bill. And, before wiring, charge controllers, batteries, inverters, and electricity costs.
4 – Display of exemptions and tax relief:
Before jumping the gun and I think it will cost at least $ 14.768 in 3045 watt watt solar panel, we need incentives and tax rebates in your account.
With the new renewable energy tax credits come into force from January 1, 2009, and reductions in the state of the state near New York, Connecticut, New Jersey or California, our cost of solar will be much lower than expected.
– We will use our example, California If we were going to receive tax refunds of approximately 20% cost, and a federal tax credit of 40% compared to the rest. Thus, after rebates and credits, our solar panels would cost:
$ 14,768 – $ 14,768 x (20%) – $ 14,768 x (1-20%) x 40% => $ 7089.
Since there are many factors that go into the calculation of its costs watt solar panels, please use our feet just as a rough estimate. some things are impossible for us to take into account, such as special offers solar installation companies, offering discounts on the full installation (including the regulator load, inverter, battery, electrical grid connection costs, etc..)
In all, however, you can see it would cost approximately $ 7,089 to buy enough solar panels to reduce by half the electricity bill. We Instead, either get solar cells at a cost or open source, and the thread of our own solar panels, which obviously saved us a lot of money. The good news is, any can learn to find cheap solar cells and make them watt solar panel.
About the Author
Tim McDonald and his wife have been living off the grid since June 2008. If you want to learn to make your own diy renewable energy and save thousands on your electricity bills, then Try Earth4Energy For FREE, before you go out and start any renewable energy project.
Charge a PSP with solar panels on a calculator?
Or is there something else I can do with one or more of small solar panels on a calculator
Nope. You are about three orders in power. Of course, you can charge your PSP from solar cells. However, the solar charger needed would be a bit larger than the device itself, only work on sunny days and does not generally provide a good user experience.
Solar Panel PV Calculator Demo for iPhone 3G / Blackberry