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don’t forget days of autonomy

Off grid systems are confusing to put together because you have to precisely calculate the size of the battery bank, its important the battery bank has enough capacity to power your loads especially during days of limited sun exposure. The term days of autonomy means the number of days a battery bank can provide the appliances you have connected to the system without a recharged by the solar panels. The system’s location is important to determine how the number of “no sun days” which is an important variable to figure out the autonomy. The general rule for days of autonomy is 2 to 3 days for non-critical loads and 5 to 7 days for critical loads. The downsides of a off-grid solar electric system is when you have periods of limited sun and your days of autonomy is not evaluated properly you will have to ration the power stored in the battery bank until the weather gets...

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Off Grid Inverters – Modified Wave vs. Pure Sine Wave

Designing an off-grid solar power or wind turbine systems can be confusing, because of figuring out the sizing requirements of the system by conducting a load calculation off all the appliances that reside within a building. Also you have to understand the difference between Modified Wave and Pure Sine Wave inverter to figure out what type of inverter is right for your renewable energy power generation project. Modified Sine Wave is a rough, noisy electrical signal that does not work with all appliances, although Modified Sine Wave inverters are much more affordable then their Pure Sine Wave counterparts. Have you ever heard a florescent light bulb make that annoying buzzing sound? Well that is the type of feedback you will get when running lights, computers, tvs and most other electronics on a Modified Sine Wave signal. Most electrical equipment will work but will no perform as well as pure sine wave, appliances such as microwaves will not work, laptops may power on be crash often due to the dirty signal Pure Sine Wave is clean electricity, similar to the electricity we get from our utility company. Compatibility is the major advantage of pure sine wave because every appliance and electrical equipment is made for Pure Sine Wave signals. With this type of inverter, you will not have to guess if what you are plugging into your AC outlet will work with your solar power or wind turbine system. The advantages of clean electricity also comes with a higher price...

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Three Types of Solar Power Systems

There are three major types of solar power systems that are unique to each solar power shopper. Let’s get into a quick overview of the options you have as a consumer looking to produce electricity from the sun: 1. Grid Tie Systems These systems are connected to the grid which interact with your utility company, when extra power is generated it is fed back into the grid and you receive a credit from the utility company for every kWh (kilowatt hour) you contribute. You can only install a grid connected system in areas, which utilities offer “net-metering”. Grid tie systems do not provide backup power when there is a power outage. 2. Grid Tie Systems with Battery Backup Similar to a grid tie system, this system feeds back into the grid and spins your meter backwards when you are producing more than you are using. Although the interesting part of this system is it has an inverter that can connect to a battery bank. Batteries can store solar juice for your critical loads during a power outage. This type of system will keep your home or business running during a blackout. Adding a battery backup sacrifices efficiency of the system, although the trade off of having power during a blackout may meet your needs. 3. Off-Grid Systems Off-Grid systems are independent of the utility. These types of systems are typically found in remote areas which have no access to electric service. Off-Grid Systems can be made up of solar panels, wind turbines, micro hydroelectric or a combination. Off-Grid systems are very dependent on the battery bank, so when designing an off-grid system, a load calculation with the specific appliances (down to the model numbers of the appliances) need to be conducted. Often off-grid system owners combine fossil fuel generators for backup when the off grid system cannot meet the entire needs of the...

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One step closer to light! – Unleashing the Power of Renewable Energy

A couple months ago I wrote about an organization we’re working with called, Unleash the Power for the People a non-profit company founded by Dave McCoy from New York. The non-profit has a very special goal in mind, to help schools in developing nations that have no access to power. Dave McCoy recently flew out to the Philippines to visit the first school that will be receiving educational items and an off-grid solar power system. The school is located in a remote area of the Philippines in a city named Banquet, it took Dave McCoy and the solar power installation team many hours to get up to the school due to the remote nature of the location. The installation team in the Philippines, headed by Rodelio Soriano of AltenSol. Rodelio conducted a site visit to the elementary school to figure out the best spot to install the solar power system. Rodelio and AltenSol will be responsible for the off-grid solar power system installation and on-going technical support if necessary. GoGreenSolar.com is helping by supplying the solar panels and inverters as well as managing the project to ensure success. Praveen Mathews of Unleash Power for the People is providing logistical support and is working directly with the Philippine General Consulate to ensure the solar panel system will have a smooth ride through customs. The great aspect of this project is that it brings many organizations together to help the elementary school improve their lifestyle significantly. We here in America take reliable electricity for granted, these children and teachers have never had access to power within their school. Together as a team we will be catapulting the school into the 21st century and hopefully change the lives for the better for the 300 kids that attend the resource constrained school. The solar power system will allow the school to power lights, computers, a 21 inch TV and possibly some refrigeration. With this first project getting closer to implementation, Unleash The Power for the People organization is looking to help schools in other nations by bringing renewable energy to their neighborhood. The request to start non-profit chapters in India and Africa have already started to emerge…the public really likes what this organization is doing, it is such a realistic and achievable goal Dave McCoy has set forth. Wish us the best of luck finishing our first project and moving forward continuing to grow the non-profit to new heights and help people all over the world gain an equal chance through renewable power! Want to get involved in the project or provide financial support? Get Involved...

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Unleashing solar power to the people.

Dave McCoy, Founder of the Unleash Power for the People, a Non-Profit organziation helping schools in developing nations with their electrical needs, is soon headed to Banquet, Philippines to donate an off-grid solar power system to a school that has never had access to power. The 1.5 kilowatt offgrid solar panel system will provide the school with at least 30 years of clean green power. GoGreenSolar.com worked closely with the Unleash Power for the People organization to help design and package a system that meets the target budget of the organization and help the non-profit with its logical issues. This is a great project for GoGreenSolar.com to be involved in because it has such a great impact around the world. According to Dave, through this first project, they have recieved interest from schools all over the world who have no access to power. The organization is developing chapters from all over the world to keep up with the demand of schools that need power. The organization has raised $8,300 of its target of $20,000, although since Dave is so commited to his mission of helping schools and a sucessful first project, he is personally making a donation to cover the rest of the balance to make the project a realitity. His dedication to helping the unfortunate and renewable energy is commendable! Solar Power systems make an excellent donation not only because they allow people to experience what we take for granted, reliable power, but help the people learn about an important skill of sustainbility. With the world in a power play for energy resouces helping the future realize the benefits of solar panels and clean energy in general can be on of the best investments we can make for the future of human kind. If you want to help the organziation reach its charitbale goals, donate...

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