Ecolodge ShimantoEcolodgeEcolodge ShimantoShimanto

Eco Lodge Shimanto, Kouchi-Prefecture Eco Lodge Eco Lodge ShimantoShimanto, , KouchiKouchi--Prefecture Prefecture

North ViewNorth View West View (Main Entrance)West View (Main Entrance)

Hotel CourtyardHotel Courtyard View from AboveView from Above

CENTER FACILITIES+ SPA & RESTAURANT

HOTEL

「Eco Lodge Shimanto」 is a complex facility to heal the people and the earth totally, consists of three parts, Eastern-Chinese Clinic, Center Facility with spa and restaurant , and 30 rooms hotel.

At the beginning of the project, collaboration of all stake At the beginning of the project, collaboration of all stake holders joined the discussion about how to develop holders joined the discussion about how to develop environmentenvironment--friendly project.friendly project.

ＣｈａｒｒｅｔｔｅＣｈａｒｒｅｔｔｅＣｈａｒｒｅｔｔｅ

環境配慮投資に対する回収予測（設計時）

0

10,000

20,000

30,000

40,000

50,000

60,000

環境配慮投資 投資回収 Ａ 太陽光発電なし 投資回収 Ｂ

（千円）

太陽光発電設備費

生ゴミ厨房排水処理費

開放型側窓・トップライト

ライトシェルフ

雨水貯留システム費

ロビーペアガラス費

アースチューブ費

屋上緑化費

1年分

回収 4.4年

<環境配慮投資項目>

回収 3.4年

年間電気代低減分

年間ガス代低減分

資金運用試算 Pay Back （センター）資金運用試算資金運用試算 Pay Back Pay Back （センター）（センター）

環境配慮投資に対する回収予測 （ホテル）(設計時）

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

従来型 環境配慮投資 投資回収

（千円）空調及び電気設備容量低減

生ごみ処理機の採用

太陽熱温水器の採用

エコケーブルの採用

省エネ型照明器具の採用

コンクリート容量の増

<環境配慮投資項目>

1年目より利益が出る

初期投資減少

年間電気代低減分

年間ガス代低減分

年間水道代低減分

資金運用試算 Pay Back （ホテル）資金運用試算資金運用試算 Pay Back Pay Back （ホテル）（ホテル）

Construction SiteConstruction SiteConstruction Site

Bicycles are used to move Bicycles are used to move within the construction sitewithin the construction site

Collecting micro climate data on site by Collecting micro climate data on site by measuring the temperature, humidity, earth measuring the temperature, humidity, earth temperature and rainfall in order to make use temperature and rainfall in order to make use of it. of it.

Utilization of harvested rainwater for Utilization of harvested rainwater for cleaning, washing cars and flushing cleaning, washing cars and flushing toilet. toilet.

Environmental Education to the userEnvironmental Education to the userEnvironmental Education to the user

LandscapeLandscapeLandscape

仮植樹木移植

夏季（夏季（66月～月～88月）月）花；ハマボウ、ネム、ニセアカシア、

オリーブ、カキノキ

実；アンズ、ブルーベリー

アンズ（実）

季節の花

Green FeaturesGreen FeaturesGreen Features

Restoration of Woodland Restoration of Woodland Restoration of Woodland

Originally hilly woodland spread around here.Originally hilly woodland spread around here.One day a decision to develop this woodland was made One day a decision to develop this woodland was made to construct buildings. What happened to many trees to construct buildings. What happened to many trees around here? Those trees were temporarily plantedaround here? Those trees were temporarily plantedin a different place during construction. Then the trees in a different place during construction. Then the trees were put back ! were put back !

Preserved topography Preserved topography Preserved topography

Site plan and buildings form reflect the original topography.Site plan and buildings form reflect the original topography.Building design responds to the surrounding nature.Building design responds to the surrounding nature.

Green roof and wall Green roof and wall Green roof and wall

Rooftop of the spaRooftop of the spa：：Green roofs and Green roofs and walls, which correspond with the walls, which correspond with the surrounding nature, help energy surrounding nature, help energy conservation by reducing heat loss.conservation by reducing heat loss.

Solar hot water system Solar hot water system Solar hot water system

Solar collectors placed on the roof. Storage tank placedSolar collectors placed on the roof. Storage tank placedin the mechanical room : The sun heats the water as itin the mechanical room : The sun heats the water as itpasses through the collector and then is circulated to a passes through the collector and then is circulated to a storage tank.storage tank.

Earth tube (Earth Tempering) Earth tube (Earth Tempering) Earth tube (Earth Tempering)

Trench under the floorTrench under the floor(view during the construction)(view during the construction)

The temperature of the ground several feet below the The temperature of the ground several feet below the surface does not fluctuate much. It is warmer in winter surface does not fluctuate much. It is warmer in winter and cooler in summer than the air temperature above. and cooler in summer than the air temperature above. The earth tube system can cool incoming ventilation air The earth tube system can cool incoming ventilation air in summer and warm it in winter.in summer and warm it in winter.

Light shelf Light shelf Light shelf

Exterior view of light shelves in the south facing windowsExterior view of light shelves in the south facing windowsInterior view of light shelves Interior view of light shelves Light shelves distribute daylight throughout the space, Light shelves distribute daylight throughout the space, by reflecting light off its top surface to the ceiling. by reflecting light off its top surface to the ceiling.

Day lighting & Heat exhaustDay lighting & Heat exhaustDay lighting & Heat exhaust

North facing highNorth facing high--side windowsside windowsNatural light coming through the skylight windowsNatural light coming through the skylight windowsOpenableOpenable windowwindow

Natural ventilation Natural ventilation Natural ventilation

Interior view of the Interior view of the upper windows for air upper windows for air exhaust (Bathhouse)exhaust (Bathhouse)

Exterior view of the Exterior view of the lower windows for air lower windows for air supply (Bathhouse)supply (Bathhouse)

The range of temperature could move the air such as The range of temperature could move the air such as natural wind. The vertical distance between the inlets natural wind. The vertical distance between the inlets and outlets causes the air movement without electricity. and outlets causes the air movement without electricity.

Double-glazed glass DoubleDouble--glazed glass glazed glass View of Lobby from outsideView of Lobby from outsideDouble glazed glasses, compared Double glazed glasses, compared to single glazing, cuts heat loss in to single glazing, cuts heat loss in half due to the insulating air space half due to the insulating air space between the glass layers. In between the glass layers. In addition to reducing the heat flow, addition to reducing the heat flow, a doublea double--glazed unit allows the glazed unit allows the continuity between inside and continuity between inside and outside nature with high visibility.outside nature with high visibility.

Ice storage systemIce storage systemIce storage system

Ice storage systems make ice during the night when electric Ice storage systems make ice during the night when electric utilities charge less for energy. The ice supplements or utilities charge less for energy. The ice supplements or even replaces mechanical cooling during the day and can even replaces mechanical cooling during the day and can result in significant operating cost savings result in significant operating cost savings

Reclaiming waste heatReclaiming waste heatReclaiming waste heat

Air to air heat exchangerAir to air heat exchanger：：Without heat recovery device, the Without heat recovery device, the

air conditioner operates less air conditioner operates less efficiently because it has to work efficiently because it has to work with heat loss when it changes the with heat loss when it changes the outdoor air and indoor air. outdoor air and indoor air.

Permeable pavement Permeable pavement Permeable pavement

The earth filters rainwater The earth filters rainwater Absorbed through soil on its Absorbed through soil on its way to groundwater aquifers, way to groundwater aquifers, streams, and rivers. streams, and rivers. Permeable pavement allows Permeable pavement allows storm water to drain storm water to drain naturally through the soil naturally through the soil below, rather than becoming below, rather than becoming runoff. runoff.

Use of harvested rain water Use of harvested rain water Use of harvested rain water

Collecting rain water from the roof into the storage tank Collecting rain water from the roof into the storage tank for irrigation of plants and sanitary usage. for irrigation of plants and sanitary usage.

Water-efficient equipment WaterWater--efficient equipment efficient equipment

WaterWater--efficient automatic faucetefficient automatic faucetWater closet which save water Water closet which save water Urinal sensor flush valveUrinal sensor flush valve

High-efficient lights and appliances HighHigh--efficient lights and appliances efficient lights and appliances

Compact fluorescent lamps (Slope) (Entrance)Compact fluorescent lamps (Slope) (Entrance)High efficient fluorescent lampsHigh efficient fluorescent lamps (Office)(Office)These high efficient lighting fixtures save energy and last longThese high efficient lighting fixtures save energy and last longer er

Daylight sensor／Occupancy sensor

Daylight sensorDaylight sensor／／Occupancy sensor Occupancy sensor

Ceiling daylight sensors: it is automatically switched on Ceiling daylight sensors: it is automatically switched on or off when day lighting reaches a certain level.or off when day lighting reaches a certain level.Ceiling occupancy sensors: it is automatically switched Ceiling occupancy sensors: it is automatically switched on or off with sensing the occupanton or off with sensing the occupant

Minimize light pollution Minimize light pollution Minimize light pollution

Outside lighting in the gardenOutside lighting in the gardenToo much artificial illumination in the nighttime Too much artificial illumination in the nighttime environment affects the growth of animals / plants and environment affects the growth of animals / plants and obstructs stargazing. Lighting fixtures used outside obstructs stargazing. Lighting fixtures used outside minimize these impacts minimize these impacts

Energy- efficient elevator EnergyEnergy-- efficient elevator efficient elevator In addition to the high efficient In addition to the high efficient motor, the electronic controller motor, the electronic controller that adjusts the usage of electricity that adjusts the usage of electricity to the required operation is used in to the required operation is used in the elevators to save energy. the elevators to save energy.

Fermentation of Kitchen Waste Fermentation of Kitchen Waste Fermentation of Kitchen Waste

Device of kitchen wasteDevice of kitchen wastefermentation with pieces of cedarfermentation with pieces of cedarthat could help fermentationthat could help fermentation：：It reuses fresh garbage asIt reuses fresh garbage asfertilizer, reducingfertilizer, reducing

Effective use of local materials（１）Effective use of local materialsEffective use of local materials（１）（１）

Symbolized pillar is 100 Years old Symbolized pillar is 100 Years old Japanese Cedar from local forestJapanese Cedar from local forestArt pieces made of 100 Years old Art pieces made of 100 Years old Japanese Cedar from local forest Local Japanese Cedar from local forest Local and domestic materials are chosen as and domestic materials are chosen as many as possiblemany as possiblein order to minimize CO2 discharge from in order to minimize CO2 discharge from transportation and respect the local transportation and respect the local history, culture, and economy. history, culture, and economy.

Effective use of local materials（2）Effective use of local materialsEffective use of local materials（（22））

Front staircase made of local Front staircase made of local cypress. cypress. Information counter boardInformation counter boardmade of 100 Years Cedar.made of 100 Years Cedar.Spa floor using pebbles fromSpa floor using pebbles fromShimantoShimanto River.River.

Use of Natural Materials (Soil,Tosa plaster,・・・)

Use of Natural Materials Use of Natural Materials (Soil,Tosa plaster,(Soil,Tosa plaster,・・・・・・) )

Local plaster wall, Tatami and Cedar flooring / Earth flooring /Local plaster wall, Tatami and Cedar flooring / Earth flooring /Cedar flooring.Cedar flooring.HumanHuman--friendly Natural materials are used,, because they have friendly Natural materials are used,, because they have function of moisture absorbing /discharging and deodorizing. function of moisture absorbing /discharging and deodorizing.

Recycled materials Recycled materials Recycled materials

Recycled PET Bottle Carpet at officeRecycled PET Bottle Carpet at officeRecycled Tire Flooring at entrance hallRecycled Tire Flooring at entrance hallEnvironmentally friendly materials are chosen as many Environmentally friendly materials are chosen as many as possible for interior finishes.as possible for interior finishes.

(recycled materials/ natural materials/ local materials) (recycled materials/ natural materials/ local materials)

Thermal Insulation Thermal Insulation Thermal Insulation

Polystyrene Form FiberglassPolystyrene Form FiberglassThermal insulation of the exterior wall could Thermal insulation of the exterior wall could reduce the heat transfer through the wall between reduce the heat transfer through the wall between inside and outside to save energy for an air inside and outside to save energy for an air conditioner. conditioner.

Photovoltaic system （Future）Photovoltaic system Photovoltaic system （（FutureFuture））

Foundation base is provided on the Foundation base is provided on the roof for photovoltaic panelsroof for photovoltaic panels

Rice PaperCeiling

Ceramic Tile( Moisture Control )

Diatom Soil PlasterCedar / Cypress BoardRice PaperWall

Soil Ceramic Tile(Waste heat used)Floor

FINISH SCHEDULE [A Type ]

Guest room AGuest room AHotel Guest Room Finish MaterialsHotel Guest Room Finish MaterialsHotel Guest Room Finish Materials

Rice PaperCeiling

Cedar / Cypress Board

Diatom Soil PlasterWall

Soil Ceramic Tile( Waste heat used )

Tatami MatFloor

FINISH SCHEDULE [B Type]

Guest room BGuest room B

Guest room BGuest room B

Rice PaperCeiling

Cedar / Cypress Board

Rice PaperWall

Hemp MatFloor

FINISH SCHEDULE [C Type]

Guest room CGuest room C

Cedar BoardCeilingDiatom Soil PlasterWallCedar / Cypress FlooringFloor

FINISH SCHEDULE [D Type]

Guest room DGuest room D

ResultResultResult

Energy Consumption Cost (CenterEnergy Consumption Cost (Center））四万十いやしの里－年間光熱水費

19%

20%

16%

16%

17%

12%

0%

20%

40%

60%

80%

100%

120%

従来型仮想光熱水費

実績光熱水費

指標

市水 ガス 電気－その他 電気－照明 電気－空調 電気－氷蓄熱

70%

削減コスト氷蓄熱－2,700千円

空調－1,800千円

照明－1,000千円

太陽熱－700千円

雨水－326千円

100%

30%削減　氷蓄熱－12%削減　空調－9%削減　照明－5%削減　太陽熱－3%削減　雨水－1%削減

電力－空調

電力－氷蓄熱

電力－照明

電力－その他

ガス

市水

太陽熱個別削減率－16%

空調個別削減率－51%

照明個別削減率－30%

雨水個別削減率－8%

INDEX

Energy Consumption Cost (HotelEnergy Consumption Cost (Hotel））四万十いやしの宿－年間光熱水費

10%

11%

11%

36%

32%

0%

20%

40%

60%

80%

100%

120%

従来型仮想光熱水費

実績光熱水費

指数

市水 ガス 電気－その他 電気－照明 電気－空調

74%

削減コスト空調－500千円照明－400千円太陽熱－83千

円

100%

26%削減　空調－13%削減　照明－11%削減　太陽熱－2%削減

空調個別削減率－41%

照明個別削減率－30%

太陽熱個別削減率－19%

電力－空調

電力－照明

電力－その他

ガス

市水

INDEX

Center Facility ：CO2 Emission /year

58,41753,796

135,891

114,349

122,395

122,395

115,554 80,888

124,826

61,491

0

100,000

200,000

300,000

400,000

500,000

600,000

従来型仮想CO2排出量

実績CO2排出量

kg-CO2/年

市水 ガス 電気－その他 電気－照明 電気－空調

78%100%

22% Reduction　空調－11%削減　照明－6%削減　太陽熱－4%削減　雨水－1%削減

削減量

119,544kg-CO2

空調－63,336

照明－34,666

太陽熱－21,542

雨水－4,621

A/C －51%

Lighting－30%

Gas －16%by Solar Heater

Water－8%by Rain Water

Electric ity－A/C

Electric ity－Lighting

Electric ity－Other

Water

Gas

CO2 Emission (CenterCO2 Emission (Center））

Hotel Facility: CO2 Emission/year

5,2315,231

7,9959,833

11,00311,003

25,67436,678

19,54832,989

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

従来型仮想CO2排出量

実績CO2排出量

kg-CO2/年

市水 ガス 電気－その他 電気－照明 電気－空調

73%

A/C －41%

100%

27% Reduction　空調－14.3%削減　照明－11.7%削減　太陽熱－ 1%削減

削減量24,445kg-CO2空調－13,442照明－11,003太陽熱-1,839

Electric ity－A/C

Lighting－30%

Gas －19%by Solar Heater

Electric ity－Lighting

Electric ity－Other

Gas

Water

CO2 Emission (HotelCO2 Emission (Hotel））

四万十いやしの宿－空調負荷低減 月別空調エネルギー使用量（電力使用量）比較

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

H16/1月 H16/2月 H16/3月 H16/4月 H16/5月 H16/6月 H16/7月 H16/8月 H16/9月 H16/10月 H16/11月 H16/12月

（kWh） 従来型 環境配慮型 実績補正値

四万十いやしの宿－現地実測：客室温度変化

2/22

16 .0

14 .8

□

▽

7 .4

×

●

18

5

15 16 17

×

10

15

13 .013 .2● ●

16 .4

20

25

18 .2×

8 .0

19 20 21 2322 24 1 2 3 4 5 6 7

18 .0

22 .5

△

□

▽

×

●

16 .0

15 .0×△

18 .0

20 .0

□

○▽

21 .0○

四 万 十 い や し の 宿 － 現 地 実 測 ：客 室 温 度 変 化客 室 　 Ａ １ ０ ５

2/2130

（℃ ）

運 転 中空 調 機 － 停 止 中

2/21

空 調 機 － 停 止 中

2/22

：　 天 井 表 面 温 度▽

（時 刻 ）8 9 10 1211 13

：　 壁 （外 壁 ）表 面 温 度

：　 壁 （内 壁 ）表 面 温 度

△○15 .0

：　 床 表 面 温 度

○

△

□

：　 室 内 温 度

：　 外 気 温 度●

×

四万十いやしの里

太陽熱利用の検証：太陽熱給湯システムの採用

ガス使用量比較（従来型：環境配慮型）

0

1,000

2,000

3,000

4,000

5,000

6,000

1月 2月 3月 4月 5月 6月 7月 8月 9月 10月 11月 12月

（m3/年）

環境配慮型ガス使用量

従来型ガス使用量

四万十いやしの宿－ガス使用量比較（従来型：環境配慮型）太陽熱給湯システムの採用

Earth TubeEarth TubeEarth Tube ●長さ ： 約80m（外気取入口～吹出手前）●床下ピット： 幅3.8m×深さ1.0m●ピット内開口部：Φ50cm×2箇所を通して流通●送風ファン： 2,200m3/h×2台

夏期と冬期のピット内温度変化 夏期と冬期のピット内湿度変化

Green roof ；winterGreen roofGreen roof ；；winterwinter

Green roof ；summerGreen roofGreen roof ；；summersummer