{"id":39458,"date":"2023-01-24T06:36:53","date_gmt":"2023-01-23T21:36:53","guid":{"rendered":"http:\/\/kochihen.replan.ne.jp\/?p=39458"},"modified":"2023-01-24T21:03:02","modified_gmt":"2023-01-24T12:03:02","slug":"%e3%80%90%e8%84%b1%e7%82%ad%e7%b4%a0%e3%81%ae%e6%89%8b%e6%b3%95%e3%83%bb%e5%af%be%e7%ad%96%e3%82%92%e3%83%9d%e3%82%a4%e3%83%b3%e3%83%88%e5%8c%96-%e5%8c%97%e6%96%b9%e5%9e%8b%e4%bd%8f%e5%ae%85zero-2","status":"publish","type":"post","link":"http:\/\/kochihen.replan.ne.jp\/?p=39458","title":{"rendered":"\u3010\u8131\u70ad\u7d20\u306e\u624b\u6cd5\u30fb\u5bfe\u7b56\u3092\u30dd\u30a4\u30f3\u30c8\u5316 \u5317\u65b9\u578b\u4f4f\u5b85ZERO-2\u3011"},"content":{"rendered":"

\"\"<\/a>
\n\"\"<\/a>
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\n\"\"<\/a>
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\n\u3055\u3089\u306b2050\u5e74\u6bb5\u968e\u306e\u30bc\u30ed\u30a8\u30cd\u30fb\u8131\u70ad\u7d20\u306b\u3064\u3044\u3066\u306f\u8981\u7d20\u6280\u8853\u306e\u9032\u5316\u304c\u3069\u3053\u307e\u3067\u9032\u3080\u306e\u304b\u3001\u672a\u78ba\u5b9a\u306a\u8981\u7d20\u304c\u5927\u304d\u304f\u73fe\u6bb5\u968e\u3067\u306f\u305d\u308c\u3089\u306e\u9032\u6b69\u3092\u7768\u307f\u306a\u304c\u3089\u9078\u629e\u306e\u4f59\u5730\u3092\u672a\u6765\u306e\u5224\u65ad\u306b\u6b8b\u3057\u305f\u3002<\/p>\n

English version\u2b07<\/p>\n

Points for decarbonization methods and measures Northern-style housing ZERO-2
\nThe system is designed to allow users to select points from decarbonization factors such as further improvement of thermal insulation performance, use of renewable energy, and use of local resources. \u30fb\u30fb\u30fb\u30fb\u30fb.<\/p>\n

Insulation and airtightness are the basic requirements for a “warm house,” and there was widespread public opinion in Hokkaido that longed for the development of such technologies, which led to housing innovation through the concerted efforts of users, government, and industry. The most significant catalyst was the sharp rise in heating costs due to the oil crisis. It seems to me that the humanitarian instinct to defend life in the north was switched on without having to wait for the oil crisis.
\nIt is difficult to get a sense of this kind of broad public opinion from the current decarbonization goals. Although it would be easy to understand the need for more advanced insulation and airtightness, the benefits of increasing the thickness of exterior wall insulation from 200mm to 400mm, for example, are not so great in relation to the costs involved. In fact, it is difficult to obtain only a very limited gain. Also, even if photovoltaic power generation is symbolized as an easy-to-understand “use of natural energy,” it will not operate in the event of snow accumulation. From the user’s point of view, it is difficult to see the equivalent sense of value.
\nFurthermore, from the perspective of people living in northern Japan, there is a correlation between housing and cars as two wheels in the wheel of daily life. Based on such criteria, the “recommended future lifestyle” of solar power generation and EVs is highly questionable, and it is difficult to accept the future of relying on a non-electric energy source for transportation during the 3-4 month winter period, which can be life-threatening. In Hokkaido, where the public transportation network is inadequate and the area of Sapporo alone spans the entire metropolis of Tokyo, as well as the prefectures of Kanagawa, Chiba, and Saitama, driving is an important lifeline that can sustain life.
\nIt may be commendable that an “alternative” to roof-mounted solar power generation has emerged, in which solar power can be installed on the walls of buildings all year round, even if the efficiency of the system is slightly reduced. However, in the case of wall-mounted solar power generation, the user must be responsible for the future forecast of the site environment, including the surrounding buildings and roads. The designers of the system have no choice but to make a limited recommendation.<\/p>\n

These background conditions led to the decision to take a “point system” as the institutional design.
\nThe following elements were selected as [decarbonization measures] and shifted to the direction of arbitrarily selecting each of them.
\nFurther reinforcement of thermal insulation performance: Raise the UA value of the average heat transfer coefficient to 0.20-0.28 or less: 3pt-5pt
\nUse of renewable energy – Installation of photovoltaic power generation equipment: 3pt – 6pt
\nInstallation of storage battery facilities: 5pt
\nUse of woody biomass: 1pt
\nUtilization of local resources – Use of Hokkaido timber for structural and interior\/exterior materials: 2pts
\nThese points were added together to make 10 points equal to a 1-ton reduction in CO2 emissions. This is an easy-to-understand indicator for a selective system. This is a measure to ensure “visualization” of decarbonization methods in discussions between users and housing companies as a system. Of course, diverse climatic characteristics differ from region to region even within Hokkaido, so the system is designed to allow elastic operation and arrangement of the system in each region’s own way.
\nFurthermore, there are many undetermined factors regarding the progress of elemental technologies for zero-energy and decarbonization in 2050, so at this stage we are leaving room for future decisions while keeping an eye on the progress of these technologies.<\/p>\n","protected":false},"excerpt":{"rendered":"

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