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Our System

Our system consists of 22 Sanyo HIP200-BA3 200 watt photovolatiac modules, 2 Outback Power Systems GVFX-3648 inverters, 2 Outback Power Systems MX-60 charge controllers, and 8 Concorde PVX-2240T backup batteries. The roof mounted panels consist of two arrays. One 1.6 kw array faces south and the other 2.8 kw array faces west providing a total of 4.4 kw capacity. The batteries can power our emergency circuits for several hours insuring uninterrupted power to our lighting, computers, and refrigerators.


The data below are live from our daily meter reading spreadsheet. We read the daily KWH used and sold and also enter the data from the Outback charge controllers for the daily output for each array. More detail can be found by choosing the "Our Solar Home" link from the menu on the left.



The "Total KWH Sold" column represents the excess we have generated over our usage. The "Total KWH Since Startup" column is the total amount we have generated since startup and the amount that has offset our usage. It includes the amount sold back to the utility. It represents the KWH we did not have to pay for plus the amount the utility paid to us.





Percent Generated Since Startup





Photovoltaic Video


Video shot at solar noon on April 11. The system was producing about 4200 watts at that time. For further detail see the charts below or the "Our Solar Home" menu selection on the left.




The charts below are derived from the XML log file that is automatically uploaded to our web server. They demonstrate two ways of using the XML data. The charts on the left are derived with PHP code directly on the site. It is a much more efficient and effective way of displaying the data but examples are also shown of charts derived from the online Google Documents spreadsheet which can import XML files dynamically. The basic engine that monitors the system and uploads the data from the Outback components was developed by Aren Slootweg of the Netherlands who has worked closely with me to develop a flexible application for monitoring Outback PV systems. The two charts on the left represent a 24 hour day of buying and selling for each of the two inverters. Once an hour is not fine enough to monitor small events but it does provide sufficient data to see our general usage patterns.





Experimental PHP and Google Spreadsheet Charts From XML Log File



Daily Percentages

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Monthly Average Percentages



Created on 01/31/2008 05:30 AM by admin
Updated on 05/07/2008 05:01 AM by admin
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Clear Sky Clock

Click on the map below to open the Clear Sky Clock site. Then click on any individual hour cell to get the projected cloud map with our location marked on the image.

Solar News

Renewable Energy News Headlines provided by RenewableEnergyWorld.com - the leading online publisher of renewable energy news and information world-wide.

NanoMarkets Issues New Report on Organic Photovoltaic Markets
NanoMarkets, an industry analyst firm based here, has issued a new report that examines the market potential for solar cells using organic materials or a hybrid organic/inorganic dye sensitive cell (DSC) approach. According to NanoMarkets the organic photovoltaics market will generate nearly one billion dollars ($US) in revenues by 2015. The report notes that 2008 will be the first year that organic PV products will be available commercially and that progress in the organic PV sector is being made possible by the substantial venture capital and strategic investments that have been made in this sector in recent years. Additional details about the report including an excerpt can be found at www.nanomarkets.net.
Solar Technology Leader Breaks Ground on Largest Inverter Factory on Earth
Global solar technology giant SMA Technologie AG, the parent company of SMA America, Inc., has broken ground on an 82,000-square-foot solar inverter manufacturing plant in Kassel, Germany. The largest of its kind on the planet, the new facility is designed to triple SMA's current production capacity to meet the global demand for its wildly popular solar inverters. It will support all manufacturing efforts for SMA America including production of the Sunny Boy 3000US/4000US and Sunny Boy 5000US/6000US/7000US inverters, created specifically for the American solar market. Construction is expected to wrap up in the fall.
SolCool One, LLC and Senergy Cooling Systems Deliver First DC Millennia HVAC to Austin Industries
SolCool One, LLC and its manufacturing partner, Senergy Cooling Systems, delivered the first Millennia direct current air conditioning/heating system to Austin Industries, the wholesale distribution HUB for the Millennia in Coachella Valley and Los Angeles County.
Solar 2008 Showcases Progress in the Solar Industry
All types of solar energy, including photovoltaics (PV) and concentrating solar power (CSP), are set to become a bigger part of the overall energy mix, employ 8.5 million Americans and are gaining acceptance from consumers, according to the American Solar Energy Society (ASES).
Oil-Rich Abu Dhabi Builds Renewable-Energy City
The Power of the Sun: Solar Lanterns Transform Lives in Malawi, Africa
Mirriam is 18 years old and lives in Malawi. She has two children, one brother and one sister. Her father died of AIDS and her mother is now also sick with HIV AIDS. Every day is a struggle: finding food for her children, caring for her mother, looking after her other sick relatives – all this with next to no income.
ARISE Signs Five-Year PV Supply Deal with aleo
ARISE Technologies Corporation announced that its wholly owned subsidiary, ARISE Technologies Deutschland GmbH, has signed a five-year contract to supply solar photovoltaic (PV) cells to aleo solar AG of Germany.
SolCool One, LLC and Senergy Cooling Systems Deliver First DC Millennia HVAC to Houston, Texas
SolCool One, LLC and its manufacturing partner, Senergy Cooling Systems, delivered the first Millennia direct current air conditioning/heating system to Alternative Energy Group of Texas the wholesale distribution HUB for the Millennia in Houston, Texas. The 1.5 ton, 18,000 BTU split version of the Millennia in the Greater Houston area demonstrates how the built in smart charger uses renewable, direct current and or alternate current grid sources to charge on-board deep cell batteries that power its 24 or 48 volt internal system. The battery driven Millennia can cool or heat uninterrupted for hours or days without any charging from outside sources at approximately 2/3 less power consumption than comparable conventional hardware.
SolCool One, LLC and Senergy Cooling Systems Deliver First DC Millennia HVAC to Madisonville, Louisiana
SolCool One, LLC and its manufacturing partner, Senergy Cooling Systems, delivered the first Millennia direct current air conditioning/heating system to The Green Energy Outlet, the wholesale distribution HUB for the Millennia in Louisiana. The 1.5 ton, 18,000 BTU split version of the Millennia in Louisiana demonstrates how the built in smart charger uses renewable, direct current and or alternate current grid sources to charge on-board deep cell batteries that power its 24 or 48 volt internal system. The battery driven Millennia can cool or heat uninterrupted for hours or days without any charging from outside sources at approximately 2/3 less power consumption than comparable conventional hardware.
New Report on Methods for Calculating Solar Capacity
As utilities work to meet electricity demand, especially during peak summer days, examining the relationship between demand and solar photovoltaic (PV) output can be of significant value to the utility industry. Over the years, energy researchers have developed different statistical methods for calculating this relationship. However, there is no consensus across the utility or solar industries on a statistical method for calculating the capacity value of PV or its practical use in electricity markets and utility planning. The new report, Photovoltaic Capacity Valuation Methods, released today by the Solar Electric Power Association (SEPA) in consultation with project partners, and funded in part by the U.S. Department of Energy's Solar America Initiative, examines the variety of capacity calculation methods in use, and lays the foundation for building consensus within the solar industry, electric utility, and research communities.

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