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<page pageid="96" ns="0" title="Renewable Energy">
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<rev contentformat="text/x-wiki" contentmodel="wikitext" xml:space="preserve">The globally rising energy demand, exhaustion of fossil fuels and pollution ask urgent action for the transition to an energy system based in renewable energy. We believe that such radical change can only occur through cooperation and knowledge sharing through global communities. The principles of open development and free knowledge can be applied in at least two different ways:
# We share knowledge and information about renewable energy concepts and technologies, particular products, manufacturers etc.
# We share the designs and all knowledge needed for the efficient manufacturing of renewable energy generation systems.
While the first form of knowledge sharing keeps us dependent on current proprietary manufacturers, it might be a solution for the very short term. The second form is more in line with the need for a radical change, but requires collaboration and pooling of resources in a much more intense way. This page is our starting point for open development and free knowledge applied to distributed renewable energy technologies.
The subject of distribution of Renewable Energy is discussed at [[Renewable Energy Distribution]].
==Open design and free hardware==
About the concepts of free hardware, see http://freeknowledge.eu/blog/wouter/from-free-software-to-hardware Wouter's blog at FKI] and a [https://microfactoria.wordpress.com/2012/01/17/case-open-source-ecology-factor-e-farm/ Case Study on Open Source Ecology].
In the domain of Renewable Energy a growing list of free hardware projects is emerging. Let's try to compile a list of the more interesting ones.
===Onawi===
[http://onawi.org/ Onawi] is a free hardware community project to develop a medium-sized wind turbine for electricity generation. "The main focus for development will be a medium size wind turbine design. Turbines of this size are especially suited for manufacture and use in low and middle income countries, and can also be used for community projects in the global North. Medium-sized wind power generation as this is a mature technology that can compete with fossil fuels , in particularly with diesel plants."
===Tamera===
A Solar Power Village in Portugal deploys various decentralised [http://www.tamera.org/index.php?id=512 solar power technologies] and doesn't rely on industrial manufacturers.
Video about the technology: http://solarpowervillage.info/. Includes Solar Power Concentrators, Biogas and Thermal Solar Power: the "Sunpulse Hotoil". Inventor Jürgen Kleinwächter: "On the other hand, the hot oil from the energy hothouse is used to operate a Stirling engine, the "Sunpulse Hotoil", which, thanks to its simple way of storing the oil, provides both electrical power (1.5 kWel), cooling energy and mechanical energy, for example for a grain mill or a saw." Concepts are explained in [http://www.tamera.org/fileadmin/PDF/Das_SPV_als_Kern_de_web.pdf this PDF]. See also Franz Nahrada's [http://www.dorfwiki.org/wiki.cgi?Tamera conversation (in German)] with founder Barbara "Bori" Kovats. Note that blueprints, manufacturing information and instruction materials are not publicly available and no license information is given.
===OSE Solar Concentrator===
Open Source Ecology is working on a [http://opensourceecology.org/wiki/Solar_Concentrator Solar Concentrator] as part of its 50 tools for the Global Village Construction Set. It's in the [http://opensourceecology.org/wiki/Solar_Concentrator/Research_Development research phase]. They have built a [http://opensourceecology.org/wiki/90_Square_Meter_Solar_Concentrator 90 sq.m. CSP].
===Tiny Vertical Axis Wind Turbine (TiVA)===
The '''Ti'''ny '''V'''ertical '''A'''xis Wind Turbine, or TiVA, is a general prototype model and testing platform for a larger wind turbine, and also the prototype for the [https://apollo.open-resource.org/lab:projects:zephyr Apollo-NG Zephyr] Wind-Park Construction Kit. It's a project from [http://opensourceecology.org/wiki/TiVA OSE Germany] and follows the OSE principles (and therefore is free hardware). The team is based in [http://opensourceecology.org/wiki/Germany/Wind_Turbine Germany] and is led by Alex Shure.
===Solar Flower===
[http://www.solarflower.org/ Solar Flower] is a free hardware "solar energy collector which can be made very easily from common recycled and salvaged materials, using basic tools and skills." Daniel Connell blogs [http://solarflower.blogspot.com/ here].
===Open Power Nepal===
[http://www.mayauniverseacademy.org/open-power-nepal Open Power Nepal] "is about designing and building a system for electricity generation that can be assembled and maintained locally." See [http://www.solarfire.org/article/openpower-nepal-at-maya-universe article].
===Concentrated Solar Power Open Source Initiative===
The [http://www.csposi.org/ CSP OSI] works on "low cost solar energy through open source design" and focuses on Concentrated Solar Power (CSP). Their work is shared under the "CSPOSI License", which appears to be a free hardware license.
===Solar Heat Pump Electrical Generation System===
[http://www.shpegs.org/ SHPEGS] is an open development project that aims "to design and build a system that uses a combination of direct and indirect solar collection to generate electricity and store thermal energy in an economical, environmentally friendly manner using common construction materials."
===Chispito Wind Generator===
The [http://www.velacreations.com/chispito.html Chispito] is a small wind generator capable of 100 watts in a 30mph wind, to get hands-on experience with building wind turbines. See [http://www.velacreations.com/makechispito.html instructions].
===Mike Davis' Wind Turbine===
Mike Davis published his self-made horizontal axis wind turbine with ample instructions to replicate his experience [http://www.mdpub.com/Wind_Turbine/index.html here].
===Free Charge Controller===
The [http://www.freechargecontroller.org/ Free Charge Controller] is a free hardware project that aims "to design a charge controller with maximum power point tracking (MPPT). Maximum power point tracking allows a solar panel, wind turbine, etc to achieve maximum efficiency and deliver maximum power to a load."
===Open Energy Monitor===
The [http://openenergymonitor.org/emon/ Open Energy Monitor] is a free hardware project that "can be assembled and configured to work for a variety of applications from a home energy monitor to solar pv import/export monitoring and beyond."
===Renewable Energy Cheaper than Coal (RE<C)===
Google's [http://www.google.org/rec.html RE<C project] has ceased but freed their research data and software for CSP: [http://google-opensource.blogspot.com/2012/01/data-and-code-open-sourced-from-googles.html RE<C open sourced]: [http://code.google.com/p/hops/ heliostat optical simulation] and [http://code.google.com/p/google-rec-csp/ RE<C data].
==Cost comparisons==
In [[Renewable Energy Cost Comparisons]] we discuss the cost levels of the different technologies and list references for trends.
==Other repositories and R&D communities==
* Global Villages Dorfwiki: [http://www.dorfwiki.org/wiki.cgi?ErneuerbareEnergien Erneubare Energien] (german)
* P2P Foundation Wiki: [http://p2pfoundation.net/Category:Energy Category:Energy]
* Appropedia Wiki: [http://www.appropedia.org/Portal:Energy Energy Portal]
* Open Source Ecology Wiki: [http://opensourceecology.org/wiki/Category:Energy Category:Energy]
* [http://www.solarfire.org/ Solar Fire] is "a modular, high temperature, fixed focal point, Solar Concentration System designed for scalability at low-cost". Note: they're a non-profit, "open" business, but use non-free licenses.
* Solar R&D by De Soto: [http://www.iedu.com/Solar/ De Soto Solar]
* Engineers Without Borders -UK [http://www.ewb-uk.org/knowledge/energy Energy] group
* Engineers Without Borders -International [http://www.ewb-international.org/ASTdatabases.htm Appropriate and Sustainable Technology] databases
* Tinytech [http://www.tinytechindia.com/windenergy.htm Wind energy]
==Deployment of Distributed Renewable Energy==
* Map of Renewable and Alternative Energy projects in the UK: http://www.renewables-map.co.uk/
==Action networks==
* PracticalAction.org [http://practicalaction.org/energy-access-for-all-project-resources Energy for All] list of resources & EC funding options
==Literature about Renewable Energy==
(unfortunately most of these books are freely licensed nor open access)
* Hermann Scheer, [http://www.hermannscheer.de/en/index.php?option=com_content&task=view&id=35&Itemid=7 Energy Autonomy]
* Achmed Khammas [http://www.buch-der-synergie.de/ Buch der Synergie] (in German)
* Wikipedia's [http://en.wikipedia.org/wiki/List_of_books_about_renewable_energy List of books on Renewable Energy].
[[Category:Energy]]</rev>
</revisions>
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<page pageid="97" ns="0" title="Renewable Energy Distribution">
<revisions>
<rev contentformat="text/x-wiki" contentmodel="wikitext" xml:space="preserve">::[[Renewable Energy|<< Renewable Energy]]
It often makes sense to connect your local station of renewable energy generation to the grid. This helps you a) to sell overcapacity to the network and b) consume energy from the network in moments of low production at your station. In many countries collective efforts have taken off to produce and/or distribute renewable energy through the network.
==Cooperatives for Renewable Energy==
* [http://www.rescoop.eu/ REScoop.eu] is the European federation of groups and cooperatives of citizens for renewable energy.
[[Category:Energy]]</rev>
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