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tneserp stnapucco fo rebmuN )Wk( noitpmusnoc rewoP6060:1:3:5:7:9:::::::00o00320012009100710051003100110000000000 tneserp stnapucco f rebmuN )00:3200:1200:9100:7100:5100:3100:1100:900:700:500:300:1Wk( noitpmusnoc rewoP2人→200Lx2 persons→200 lx6人→500Lx6 persons→500 lx8人→500Lx8 persons→500 lx0人→0Lx0 persons→0 lx1人→100Lx1 persons→100 lx5人→500Lx5 persons→500 lx2人→200Lx2 persons→200 lx弱AC on low強AC on high弱AC on low弱AC on lowPERSPECTIVES）人者（館在）Wｋ力（電費消）人者（館在）Wｋ力（電費消無駄Wasted energy全館人員Occupants of entire building 一般運用　2023/6/23（金）General operation (Friday, June 23, 2023)一般運用　2023/6/23（金）General operation (Friday, June 23, 2023)305F2418125F30241812照明Lighting無駄Wasted energy・時間外で人員数に関係なく全灯・All lights on outside office hours, regardless of occupancy空調Air conditioning・人員に応じて変化するが、暑い寒いが混在・Both hot and cold conditions, varying with occupancy6F7F8F6F7F8F全館人員Occupants of entire building・定時以降、人員に合わせた照度設定・Lighting intensity set according to occupancy outside regular hours自由調整可能エリアOptional use areaゆったり緩和Light air conditioning停止No air conditioning送風Fan in operation・エリアごとの強弱のバリエーション・Variations in AC intensity by area500400300200100500400300200100CN運用方針Carbon neutrality operation policyCN運用方針Carbon neutrality operation policyしっかり空調Strong air conditioning照明：人がいない・少ないエリアは暗く、人が多いエリアは日中と同等の明るさに照度を自動変更。ワーカーが暗い場所から明るい場所へ集まるよう行動変容を促し、不要な照明を削減。Lighting: Automatically darkens areas with few or no people and increases lighting to daytime brightness in areas with many people. Promotes behavioral change so that workers move from dark areas to bright areas to gather, reducing unnecessary illumination.空調：強・弱・送風・停止のムラをつくり、ワーカーがそれぞれ好みのエリアを選べる。空調不要なエリアが生じることから、フロア全体の省エネルギーにもつながる。Air conditioning: Implementing variable settings (high, low, fan only, off) makes it possible for employees to choose work areas that suit their individual comfort preferences. Establishing areas that do not require air-conditioning also saves energy across entire floors.Office occupancy levels fluctuate significant-ly between daytime and nighttime, and indi-viduals’ sensitivity to heat and cold can vary widely. Operation of equipment at standard settings therefore presents problems from the standpoint of both energy efficiency and comfort. Nikken Sekkei is exploring the principle of “unevenness” to achieve vari-In March 2021, Nikken Sekkei issued a climate emergency dec-laration, announcing the company’s goal of achieving carbon neutrality through work practices and urban and architectural design by 2050. Nikken Sekkei moved its Osaka Office to the Ginsen Bingomachi Building in May 2023 and is working together with the building owner to conduct demonstration experiments for decarbonizing the tenant offices. Here, we introduce some of those initiatives.ation in lighting and air conditioning and achieve office environments that balance energy conservation and comfort.日建設計 大阪オフィスにおける行動変容を促す実験Initiatives to Encourage Behavioral Change in the Nikken Sekkei Osaka Office 日建設計は2021年3月に「気候非常事態宣言」を表明し、2050年を目標に、働き方と都市・建築デザインの双方からカーボンニュートラル達成を目指しています。日建設計大阪オフィスは2023年5月に銀泉備後町ビルに移転し、テナントオフィスの脱炭素の実証実験をビルオーナーと一体で行っています。その一部をご紹介します。28一般的に、オフィスは日中と夜間で滞在人数の差が大きく、また個々人の暑い・寒いの体感差など、エネルギーの面でも快適性の面でも、画一的な運用には大きな課題があります。そこで、照明や空調に意図的に「ムラ」をつくり出すことで、省エネルギーかつ快適なオフィス環境の実現を目指しています。カーボンニュートラルに向けての活動報告Activity Report: Progress on Carbon Neutrality取組み1：行動変容を促す照明と空調の「ムラ」Initiative 1: Implementing Variation in Lighting and Air Conditioning to Encourage Behavioral Change