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| [[File:MES Berkley small.png|center|800px|Innovating Energy Access for Remote Areas: Discovering Untapped Resources|alt=Innovating Energy Access for Remote Areas: Discovering Untapped Resources|link=Innovating Energy Access for Remote Areas: Discovering Untapped Resources]] | | [[File:MES Berkley small.png|center|800px|Innovating Energy Access for Remote Areas: Discovering Untapped Resources|alt=Innovating Energy Access for Remote Areas: Discovering Untapped Resources|link=Innovating Energy Access for Remote Areas: Discovering Untapped Resources]] |
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− | <span style="line-height: 1.5em;">[http://www.nextekpower.com/ Nextek Power Systems Inc]. CEO Paul Savage </span><span style="line-height: 1.5em;">addressed some of the business and technological challenges that face microgrid energy stakeholders in his speech on 'The Evolution of Distributed Electricity Generation.'</span> | + | <span style="line-height: 1.5em;">[http://www.nextekpower.com/ Nextek Power Systems Inc]. CEO Paul Savage </span><span style="line-height: 1.5em;">addressed some of the business and technological challenges that face micro-grid energy stakeholders in his speech on 'The Evolution of Distributed Electricity Generation.'</span> |
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− | DC electrical grids have as yet not been applied for widespread public utility use. Their limited distribution range (a result of their late 1800s technology) couldn’t compete with AC’s transmission abilities. One of the primary uses for DC power is elevator motors, dating from before 1930, that are still in use. These “winding drum” motors, outlawed after 1940 for safety reasons, were grandfathered in. They persist due to the enormous cost of replacing them with new elevator systems<span style="line-height: 1.5em;">. </span><span style="line-height: 1.5em;">Despite this, there is one DC grid, located in San Francisco that has been operating since 1879, three years before Thomas Edison opened his New York DC power plant</span><ref name="Nextek Power Systems">Secret DC Grid Has Been Powering Parts of San Francisco Since 1879. Nextek Power Systems. http://www.nextekpower.com/blog/news/secret-dc-grid-has-been-powering-parts-of-san-francisco-since-1879/</ref><span style="line-height: 1.5em;">.</span> | + | DC electrical grids have as yet not been applied for widespread public utility use. Their limited distribution range (a result of their late 1800s technology) couldn't compete with AC’s transmission abilities. One of the primary uses for DC power is elevator motors, dating from before 1930, that are still in use. These “winding drum” motors, outlawed after 1940 for safety reasons, were grandfathered in. They persist due to the enormous cost of replacing them with new elevator systems. Despite this, there is one DC grid, located in San Francisco that has been operating since 1879, three years before Thomas Edison opened his New York DC power plant<ref name="Nextek Power Systems">Secret DC Grid Has Been Powering Parts of San Francisco Since 1879. Nextek Power Systems. http://www.nextekpower.com/blog/news/secret-dc-grid-has-been-powering-parts-of-san-francisco-since-1879/</ref>. Learn more [http://www.nextekpower.com/blog/news/secret-dc-grid-has-been-powering-parts-of-san-francisco-since-1879/ here]. |
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− | Learn more [http://www.nextekpower.com/blog/news/secret-dc-grid-has-been-powering-parts-of-san-francisco-since-1879/ here]. | + | |
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| | [[File:Nextek Power Systems - The Evolution of Distributed Electrical Power.pdf|border|right|300px|File:Nextek Power Systems - The Evolution of Distributed Electrical Power.pdf|alt=File:Experience from First Solar Mini Grid Service in Bangladesh.pdf]] | | | [[File:Nextek Power Systems - The Evolution of Distributed Electrical Power.pdf|border|right|300px|File:Nextek Power Systems - The Evolution of Distributed Electrical Power.pdf|alt=File:Experience from First Solar Mini Grid Service in Bangladesh.pdf]] |
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| == Issues Presented == | | == Issues Presented == |
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− | *In our lifetime, the load (what we use electricity for), has gone from almost entirely AC to entirely DC. Not a lot of semi-conductors were in use before the 1970s. | + | <span style="color: rgb(139, 45, 45); font-size: 12px; line-height: 21px;">► </span><span style="background-color: rgb(255, 255, 255); font-size: 12px; line-height: 21px;">[[:File:Nextek_Power_Systems_-_The_Evolution_of_Distributed_Electrical_Power.pdf|Please see the presentation.]]</span> |
− | *Power convertors can take AC to DC, or DC to AC, however, a more ideal state would have fewer conversions. What does this mean for battery storage? | + | *In our lifetime, the load (what we use electricity for), has gone from almost entirely AC to entirely DC. Not a lot of semi-conductors were in use before the 1970's. |
− | *The adoption of DC in developed countries has been mostly influenced by fuel optionality and efficiency factors. Eg: | + | *Power converters can take AC to DC, or DC to AC, however, a more ideal state would have fewer conversions. What does this mean for battery storage? |
| + | *The adoption of DC in developed countries has been mostly influenced by fuel optionality and efficiency factors. E.g.: |
| **DTE Energy, the largest utilities in USA, have 2 floors of their headquarters for DC power to run their lighting systems. This DC house is built in their parking lot.<br/> | | **DTE Energy, the largest utilities in USA, have 2 floors of their headquarters for DC power to run their lighting systems. This DC house is built in their parking lot.<br/> |
| **PNC Bank put DC lighting in their first net zero bank, and have 2,500 more to go!<br/> | | **PNC Bank put DC lighting in their first net zero bank, and have 2,500 more to go!<br/> |
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| **Intel have a whole power lab in New Mexico. Lennox have solar assisted products. All the autos are looking at integrated charging structure, economics of providing buffer to grid. Integrated battery system. | | **Intel have a whole power lab in New Mexico. Lennox have solar assisted products. All the autos are looking at integrated charging structure, economics of providing buffer to grid. Integrated battery system. |
| *IEEE Pilot in Haiti: demonstrating how DC can advance efficiency and interoperability. Yellow box: has USB port for phone charging. 40 of the boxes can fit in charging container under solar panel. | | *IEEE Pilot in Haiti: demonstrating how DC can advance efficiency and interoperability. Yellow box: has USB port for phone charging. 40 of the boxes can fit in charging container under solar panel. |
− | **System designed by one of the Nextek employees. A frame is also built to load and unload from a pickup truck. Designed for best use, and not for cost, in the beginning. Put together open source design book. Anyone can build the mechanicals. Brings price down to $14,000 a unit, totally built = $28,000 a unit. | + | **System designed by one of the Nextek employees. A frame is also built to load and unload from a pickup truck. Designed for best use, and not for cost, in the beginning. Put together open source design book. Anyone can assemble the mechanical parts. Brings price down to $14,000 a unit, totally built = $28,000 a unit. |
| **Deliver into the market that covers 80 families in four days after local infrastructure established. At the end of the day, the loads are the same, no reason to design around an old platform.<br/> | | **Deliver into the market that covers 80 families in four days after local infrastructure established. At the end of the day, the loads are the same, no reason to design around an old platform.<br/> |
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| 2. 1 cent per person per day means what?<br/> | | 2. 1 cent per person per day means what?<br/> |
− | *Cost from the customer. First deployment, cost of kerosene in Haiti, built to that price. Drove open source plan. Could have business in accessories. To get the job done, can bring customer for 1cent a day for a family of five.<br/> | + | *Cost from the customer. First deployment, cost of kerosene in Haiti, built to that price. Drove open source plan. Could have business in accessories. To get the job done, can bring customer for 1 cent a day for a family of five.<br/> |
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| <br/> | | <br/> |
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| __NOTITLE__ | | __NOTITLE__ |
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− | [[Category:Electricity]]
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− | [[Category:Electric_Connections]]
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− | [[Category:Microenergy_Systems]]
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| [[Category:Conference_Documentation]] | | [[Category:Conference_Documentation]] |
| + | [[Category:Microenergy_Systems]] |
| + | [[Category:Electricity]] |
1. Does the price include the power box?
2. 1 cent per person per day means what?