<div>Hi,</div>
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<div>it is the off-the-grid version I'm looking at. I found a few of them, but generally in a warm and sunny climate. So I want to see the differences/feasability building it in a moderate to cold climate.</div>
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<div>leen<br><br></div>
<div class="gmail_quote">On Fri, May 7, 2010 at 3:22 PM, Nick Caton <span dir="ltr"><<a href="mailto:ncaton@smithboucher.com">ncaton@smithboucher.com</a>></span> wrote:<br>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Hi Leen!</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">I had to look this up on Wikipedia, so it’s my word of the day: “</span><b>Autarky</b> is the quality of being self-sufficient.”</p>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">There are many loose terms thrown around here in the states for “self-sufficient” buildings – these terms may help your search depending on what exactly you’re looking for:</span></p>
<p><span style="COLOR: #1f497d; FONT-SIZE: 11pt"><span>-<span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="COLOR: #1f497d; FONT-SIZE: 11pt">“net-zero” buildings – this may imply one of a few things add up to zero over time:</span></p>
<p style="MARGIN-LEFT: 1in"><span style="FONT-FAMILY: 'Courier New'; COLOR: #1f497d; FONT-SIZE: 11pt"><span>o<span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Energy Consumption (sometimes isolated services – i.e. electricity but not gas)</span></p>
<p style="MARGIN-LEFT: 1in"><span style="FONT-FAMILY: 'Courier New'; COLOR: #1f497d; FONT-SIZE: 11pt"><span>o<span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Carbon Emissions – see also “Carbon Neutral” in the context of the 2030 Challenge</span></p>
<p style="MARGIN-LEFT: 1in"><span style="FONT-FAMILY: 'Courier New'; COLOR: #1f497d; FONT-SIZE: 11pt"><span>o<span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Cost – the cost of purchased energy is balanced by the sale of site-generated energy</span></p>
<p><span style="COLOR: #1f497d; FONT-SIZE: 11pt"><span>-<span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="COLOR: #1f497d; FONT-SIZE: 11pt">“zero-energy” buildings theoretically produce/harvest all energy on-site without needing to tie to a utility grid. I’m not intimately familiar, but a number of zero-energy building design challenges exist in the academic world – you may find a lot of information from competition entries if that’s what you’re looking for and such information is archived somewhere. Zero-energy may also refer to “source” energy (meaning the energy harvested/generated on site meets a higher bar of energy to include losses of transmission/generation), but I’ve yet to see that applied to a real project.</span></p>
<p><span style="COLOR: #1f497d; FONT-SIZE: 11pt"><span>-<span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="COLOR: #1f497d; FONT-SIZE: 11pt">“off-the-grid” buildings – similar to “zero-energy” but literally off the utility service grid.</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Because these are largely unregulated marketing/PR labels, any of the above interpretations may be “bent” to meet the needs of the moment. For example, you may find a building may be claimed “zero-energy,” but in reality it only functions in that state for limited periods during the year when the wind blows.</span></p>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Sorry for not providing any specific examples, but cautioning that you carefully define what you mean by autarky buildings – lest you get swamped with information that isn’t what you’re looking for!</span></p>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">~Nick</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"><img alt="cid:489575314@22072009-0ABB" width="119" height="37"></span><b><span style="COLOR: #2d4d5e; FONT-SIZE: 11pt"></span></b></p>
<p class="MsoNormal"><b><span style="COLOR: #2d4d5e; FONT-SIZE: 11pt"> </span></b></p>
<p class="MsoNormal"><b><span style="COLOR: #2d4d5e; FONT-SIZE: 11pt">NICK CATON, E.I.T.</span></b><b><span style="COLOR: #2d4d5e"></span></b></p>
<p class="MsoNormal"><span style="COLOR: #cc9900; FONT-SIZE: 7.5pt">PROJECT ENGINEER</span><span style="COLOR: #cc9900; FONT-SIZE: 7.5pt"></span></p>
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<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt">From:</span></b><span style="FONT-SIZE: 10pt"> <a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>leen peeters<br>
<b>Sent:</b> Friday, May 07, 2010 2:33 PM<br><b>To:</b> <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br><b>Subject:</b> [Bldg-sim] energy autarky buildings</span></p></div>
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<p class="MsoNormal">Dear,</p></div>
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<p class="MsoNormal">I'm looking for examples and analyses (including LCA) of energy autarky buildings. As I want to see the differences in design as a function of the climate, the examples may be fom anywhere. There seems not to be that much of literature on the subject, so any nice reference is welcome too!</p>
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<p class="MsoNormal">Thanks already,</p></div>
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<p class="MsoNormal">Leen Peeters, Belgium</p></div></div></div></div></div></blockquote></div><br>