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	<id>https://energypedia.info/index.php?action=history&amp;feed=atom&amp;title=Controlled_Environment_Agriculture_%28PA_Technology%29</id>
	<title>Controlled Environment Agriculture (PA Technology) - Revision history</title>
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	<updated>2026-05-02T05:33:38Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://energypedia.info/index.php?title=Controlled_Environment_Agriculture_(PA_Technology)&amp;diff=95802&amp;oldid=prev</id>
		<title>Axel Heinemann at 08:44, 15 December 2014</title>
		<link rel="alternate" type="text/html" href="https://energypedia.info/index.php?title=Controlled_Environment_Agriculture_(PA_Technology)&amp;diff=95802&amp;oldid=prev"/>
		<updated>2014-12-15T08:44:47Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 08:44, 15 December 2014&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Powering Agriculture Technology Database&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Powering Agriculture Technology Database&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|PAT quality check=Yes&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Name=Controlled Environment Agriculture&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Name=Controlled Environment Agriculture&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Picture=&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;CEA&lt;/del&gt;.jpg&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Picture=&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;CEA2&lt;/ins&gt;.jpg&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Type Alternative=Alternative Methodology&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Type Alternative=Alternative Methodology&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Description=Controlled-environment agriculture (CEA) is any agricultural technology that enables the grower to manipulate a crop's environment to the desired conditions. CEA technologies include greenhouse, hydroponics, aquaculture, and aquaponics. Controlled variables include temperature, humidity, pH, and nutrient analysis.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Description=Controlled-environment agriculture (CEA) is any agricultural technology that enables the grower to manipulate a crop's environment to the desired conditions. CEA technologies include greenhouse, hydroponics, aquaculture, and aquaponics. Controlled variables include temperature, humidity, pH, and nutrient analysis.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l47&quot; &gt;Line 47:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 46:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Technology Development Level=Still a lot of Research and development is required;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Technology Development Level=Still a lot of Research and development is required;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Pilot projects and first implementation;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Pilot projects and first implementation;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Maintenance=Still high: Technology can only be maintained through its life cycle with uncommon tools and requires trained professionals for maintenance;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Maintenance=Still high: Technology can only be maintained through its life cycle with uncommon tools and requires trained professionals for maintenance;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Infrastructure=Research and more project experiences;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Infrastructure=Research and more project experiences;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l55&quot; &gt;Line 55:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 53:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Deployment Capability=Worldwide;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Deployment Capability=Worldwide;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Requirements for Deployment=Research for more ecological approaches with less requirement of resources, development of closed loop CEA's based on renewable energies and local cycles of matter and materials;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Requirements for Deployment=Research for more ecological approaches with less requirement of resources, development of closed loop CEA's based on renewable energies and local cycles of matter and materials;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Relevance Autonomy=High, if energy efficient, energy independent (based on renewables) and local cycles of matter are implemented;  &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Relevance Autonomy=High, if energy efficient, energy independent (based on renewables) and local cycles of matter are implemented;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Environment Impacts=High: direct and indirect emissions;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Environment Impacts=High: direct and indirect emissions;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Has the potential to become low: no direct emissions but indirect emissions;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Has the potential to become low: no direct emissions but indirect emissions;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l68&quot; &gt;Line 68:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 66:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;https://practicalaction.org/vegetable-production-under-protective-structures&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;https://practicalaction.org/vegetable-production-under-protective-structures&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|PAT quality check=Yes&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Category=Growing Environment&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Category=Growing Environment&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Pumping=&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|PAT Pumping=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Axel Heinemann</name></author>
	</entry>
	<entry>
		<id>https://energypedia.info/index.php?title=Controlled_Environment_Agriculture_(PA_Technology)&amp;diff=95703&amp;oldid=prev</id>
		<title>Axel Heinemann: 1 revision</title>
		<link rel="alternate" type="text/html" href="https://energypedia.info/index.php?title=Controlled_Environment_Agriculture_(PA_Technology)&amp;diff=95703&amp;oldid=prev"/>
		<updated>2014-12-15T08:43:49Z</updated>

		<summary type="html">&lt;p&gt;1 revision&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 08:43, 15 December 2014&lt;/td&gt;
				&lt;/tr&gt;
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&lt;/table&gt;</summary>
		<author><name>Axel Heinemann</name></author>
	</entry>
	<entry>
		<id>https://energypedia.info/index.php?title=Controlled_Environment_Agriculture_(PA_Technology)&amp;diff=95700&amp;oldid=prev</id>
		<title>Franz Schreier at 11:32, 10 December 2014</title>
		<link rel="alternate" type="text/html" href="https://energypedia.info/index.php?title=Controlled_Environment_Agriculture_(PA_Technology)&amp;diff=95700&amp;oldid=prev"/>
		<updated>2014-12-10T11:32:32Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Powering Agriculture Technology Database&lt;br /&gt;
|PAT quality check=Yes&lt;br /&gt;
|PAT Name=Controlled Environment Agriculture&lt;br /&gt;
|PAT Picture=CEA.jpg&lt;br /&gt;
|PAT Type Alternative=Alternative Methodology&lt;br /&gt;
|PAT Description=Controlled-environment agriculture (CEA) is any agricultural technology that enables the grower to manipulate a crop's environment to the desired conditions. CEA technologies include greenhouse, hydroponics, aquaculture, and aquaponics. Controlled variables include temperature, humidity, pH, and nutrient analysis.&lt;br /&gt;
A February 2011 article in the magazine, &amp;quot;&amp;quot;Science Illustrated&amp;quot;&amp;quot; states, :In commercial agriculture, CEA can increase efficiency, reduce pests and diseases, and save resources.... Replicating a conventional farm with computers and LED lights is expensive but proves cost-efficient[citation needed] in the long run by producing up to 20 times as much high-end, pesticidee-free produce as a similar size plot of soil. Fourteen thousand square feet of closely monitored plants produce 15 million seedlings annually at the solar-powered factory. Such factories will be necessary to meet urban China's rising demand for quality fruits and vegetables.&lt;br /&gt;
&lt;br /&gt;
Source: http://en.wikipedia.org/wiki/Controlled-environment_agriculture&lt;br /&gt;
|PAT Technology Application Solar=Solar&lt;br /&gt;
|PAT Value Controlled Atmosphere=Controlled Atmosphere&lt;br /&gt;
|PAT Value Controlled Temperature=Controlled Temperature&lt;br /&gt;
|PAT Actions Other=N/A&lt;br /&gt;
|PAT Commodity Fruits Vegetables=Fruits and vegetables&lt;br /&gt;
|PAT Commodity Stimulants=Stimulants&lt;br /&gt;
|PAT Commodity Spices=Spices&lt;br /&gt;
|PAT Dev Region Worldwide=Region&lt;br /&gt;
|PAT Dev Region Europe=Europe &amp;amp; Central Asia&lt;br /&gt;
|PAT Dev Country Europe=Netherlands&lt;br /&gt;
|PAT Dev Region North America=North America&lt;br /&gt;
|PAT Dev Country North America=United States of America&lt;br /&gt;
|PAT Dev Region Not Available=&lt;br /&gt;
|PAT Dep Region Worldwide=Region&lt;br /&gt;
|PAT Dep Region East Asia=East Asia &amp;amp; The Pacific&lt;br /&gt;
|PAT Dep Region Europe=Europe &amp;amp; Central Asia&lt;br /&gt;
|PAT Dep Region Middle East=Middle East &amp;amp; North Africa&lt;br /&gt;
|PAT Dep Region North America=North America&lt;br /&gt;
|PAT Dep Region Not Available=&lt;br /&gt;
|PAT Dep Pot Region Worldwide=Worldwide&lt;br /&gt;
|PAT Dep Pot Region South Asia=&lt;br /&gt;
|PAT Dep Pot Country South Asia=&lt;br /&gt;
|PAT Dep Pot Region Africa=&lt;br /&gt;
|PAT Dep Pot Country Africa=&lt;br /&gt;
|PAT Dep Pot Region East Asia=&lt;br /&gt;
|PAT Dep Pot Country East Asia=&lt;br /&gt;
|PAT Dep Pot Region Europe=&lt;br /&gt;
|PAT Dep Pot Country Europe=&lt;br /&gt;
|PAT Dep Pot Region Latin America=&lt;br /&gt;
|PAT Dep Pot Country Latin America=&lt;br /&gt;
|PAT Dep Pot Region Middle East=&lt;br /&gt;
|PAT Dep Pot Country Middle East=&lt;br /&gt;
|PAT Dep Pot Region North America=&lt;br /&gt;
|PAT Dep Pot Country North America=&lt;br /&gt;
|PAT Dep Pot Region Not Available=&lt;br /&gt;
|PAT Manufacturers=N/A&lt;br /&gt;
|PAT Economics=Economics has to be evaluated in each project; In some cases very profitable;&lt;br /&gt;
|PAT Technology Development Level=Still a lot of Research and development is required;&lt;br /&gt;
Pilot projects and first implementation;&lt;br /&gt;
&lt;br /&gt;
|PAT Maintenance=Still high: Technology can only be maintained through its life cycle with uncommon tools and requires trained professionals for maintenance;&lt;br /&gt;
|PAT Infrastructure=Research and more project experiences;&lt;br /&gt;
|PAT Required Resources Manufacture=Metals, plastics, electronics;&lt;br /&gt;
|PAT Required Resources Operation=So far, most of the CEA operations require a lot of resources for its operation, energy (electricity and heat), fertilizer and feed;&lt;br /&gt;
|PAT Deployment Level=Local availability;&lt;br /&gt;
|PAT Deployment Capability=Worldwide;&lt;br /&gt;
|PAT Requirements for Deployment=Research for more ecological approaches with less requirement of resources, development of closed loop CEA's based on renewable energies and local cycles of matter and materials;&lt;br /&gt;
|PAT Relevance Autonomy=High, if energy efficient, energy independent (based on renewables) and local cycles of matter are implemented; &lt;br /&gt;
|PAT Environment Impacts=High: direct and indirect emissions;&lt;br /&gt;
Has the potential to become low: no direct emissions but indirect emissions;&lt;br /&gt;
|PAT Bio-Cybernetic=Has the potential to fulfill conformity, if resource issues are solved;&lt;br /&gt;
|PAT Links=http://en.wikipedia.org/wiki/Controlled-environment_agriculture&lt;br /&gt;
&lt;br /&gt;
http://ag.arizona.edu/ceac/&lt;br /&gt;
&lt;br /&gt;
http://www.except.nl/en/#.en.projects.1-polydome&lt;br /&gt;
&lt;br /&gt;
http://en.wikipedia.org/wiki/Building-integrated_agriculture&lt;br /&gt;
&lt;br /&gt;
https://practicalaction.org/vegetable-production-under-protective-structures&lt;br /&gt;
|PAT Category=Growing Environment&lt;br /&gt;
|PAT Pumping=&lt;br /&gt;
|PAT Lighting=&lt;br /&gt;
|PAT Heating=&lt;br /&gt;
|PAT Cooling=&lt;br /&gt;
|PAT Wind=&lt;br /&gt;
|PAT Biomass=&lt;br /&gt;
|PAT Biofuel=&lt;br /&gt;
|PAT Biogas=&lt;br /&gt;
|PAT Humans=&lt;br /&gt;
|PAT Animals=&lt;br /&gt;
|PAT Biochar=&lt;br /&gt;
|PAT Composte=&lt;br /&gt;
|PAT Insects=&lt;br /&gt;
|PAT Plants=&lt;br /&gt;
|PAT Others=&lt;br /&gt;
}}&lt;/div&gt;</summary>
		<author><name>Franz Schreier</name></author>
	</entry>
</feed>