{"id":43343,"date":"2024-03-16T06:21:48","date_gmt":"2024-03-15T21:21:48","guid":{"rendered":"http:\/\/kochihen.replan.ne.jp\/?p=43343"},"modified":"2024-03-16T06:28:47","modified_gmt":"2024-03-15T21:28:47","slug":"%e3%80%90pv%e8%a8%ad%e7%bd%ae%e5%9b%b0%e9%9b%a3%e3%81%aa%e3%80%8c%e5%a4%9a%e9%9b%aa%e5%8c%ba%e5%9f%9f%e3%80%8d%e3%81%a7%e3%81%ae%e6%b4%bb%e7%94%a8%e3%83%81%e3%83%a3%e3%83%ac%e3%83%b3%e3%82%b8%e3%80%91","status":"publish","type":"post","link":"http:\/\/kochihen.replan.ne.jp\/?p=43343","title":{"rendered":"\u3010PV\u8a2d\u7f6e\u56f0\u96e3\u306a\u300c\u591a\u96ea\u533a\u57df\u300d\u3067\u306e\u6d3b\u7528\u30c1\u30e3\u30ec\u30f3\u30b8\u3011"},"content":{"rendered":"

\"\"<\/a>
\n\"\"<\/a>
\n\"\"<\/a>
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English version\u2b07<\/p>\n

The challenge of utilizing PV in “high snowfall areas,” where it is difficult to install PV.
\nThe attitude of boldly taking on the challenge of a harsh external environment with more than 100 cm of vertical snow cover shows the frontier spirit of the Pure-Hokkaido people. <\/p>\n

Yesterday I introduced various challenges in Hokkaido regarding “wall-mounted” solar power generation, but the problem of snow accumulation is still an obstacle to the adoption of PV as a response to the energy crisis.
\n\u3000The Ministry of Land, Infrastructure, Transport, and Tourism defines a “heavy snowfall area” as “an area with a vertical snow accumulation of 100 cm or more as specified by a specified administrative agency in accordance with Article 86 of the Building Standards Law Enforcement Order. Since the proposed building site in Minamihoro Town is located in an area with a vertical snowfall of 130 cm, the conditions of a heavy snowfall area would apply.
\n\u3000If the government is going to force these areas to change their approach to energy, it should also provide institutional measures to deal with the anticipated difficulties, but it is undeniable that at the moment the local governments are solely responsible for their own efforts. While such matters should be pursued on the institutional side, in reality, we have no choice but to respond to social changes by considering “what we can do.
\n\u3000The plan shown above is the one that makes the most use of PV in the collection of plans for the “Zero Carbon Village” in Minamihoro Town. \uff08An example of a proposed house built in collaboration with Kikuzawa Corporation and Toruichi Hirota Design.
\n\u3000A total of 30 panels were installed: 12 445W panels on the gently sloped, no-snowfall flat roof, and a total of 18 panels on the walls. The total energy is 13.35 kW, a powerful challenge proposal. Kikuzawa’s home base is in Eniwa City, an area with 90cm of snow outside of the heavy snowfall zone, so they are proposing a very “aggressive” plan here as well. Since the company has been actively promoting the use of PV, it is assumed that this decision is based on “empirical knowledge” of actual operational efficiency results, rather than the “efficiency” of PV power generation as assumed by the system.
\n\u3000This is a nod to the proposal from a position that has actually verified actual energy efficiency in cold regions. I recently had a chance to visit their latest home, and they are taking a challenging stance on ventilation and heating equipment. I was very excited by their extreme research into the efficiency of various energy equipment, using their home as a testing ground.
\n\u3000Hokkaido is the most suitable region for this kind of challenge. You can assume that the results obtained under the harsh conditions have been subjected to rigorous verification.
\n\u3000Before giving up because of the heavy snowfall, it would be more refreshing to look forward with a little bit of certainty to the results we have accumulated. I agree that the majority of the people who moved to Hokkaido were determined to move forward and take on challenges, rather than looking backward. The “frontier spirit” of today’s people may be more alive in such places than one might think.<\/p>\n

\u3000
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