altener project number eie/04/252/s07 project number eie/04/252/s07.38608 renewable energy sources...

ALTENER PROJECT NUMBER EIE/04/252/S07.38608

Renewable Energy Sources and Micro CHP in Rural Lodges

GREEN LODGES ENERGY AUDITS SUMMARY

FRANCE

ENERGY AUDIT

SUMMARY

«”REFUGE DE L’AIGUILLE”»

LODGE’S GENERAL DATA

LODGE’S DESCRIPTION

• The commune of Morzine renovates the country cottages of the Aiguille to carry out a refuge. The buildings are old (1 900) and must be entirely renovated. With term, the refuge will count forty beds.

• A restoration integrating Environmental High Quality (HQE®) criteria is previewed. Work must be completed in 2006.

• The refuge is located at 2’000 meters in altitude and not grid-connected to the electrical network.

ENERGY DEMAND

As the refuge will be not grid-connected to the electrical network, the needs for electricity will be limited to the maximum (5 to 10 kWh / open day). Heating and production of hot water will be produced by a propane boiler. According to the opening periods, consumption will be able to strongly vary. These ones are estimated about 20’000-30’000 kWh/an.

IMPROVEMENT ACTIONS

• Rational use of energy (RUE): Refurbishment will integrate High Environmental Quality criteria (HQE®).

• Energy efficiency: The site being in isolated place from the electrical network, all the equipments will be powerful in terms of energy efficiency; in particular lighting and cold equipment.

• Renewable energy sources (RES) integration :

1. GENERAL DATAS

Name : Refuge de l’Aiguille

Adress: Mairie de Morzine - FRANCE

Telephone: +33 (0)4 50 79 04 33

Contact person : Monsieur le Maire

Type of lodge : refurbishment, isolated mountain refuge

Use range :

Open periods : Summer & Winter

Capacity : 40 beds et 60 meals per service

Occupancy rate (%): The refuge being in construction, the occupancy rate was not estimated

1. Electricity will be produced by photovoltaic power station with a supplement by power generating unit. The photovoltaic installation will have a power of 2’500 WC associated with a park battery with 55 kWh. Electricity will be distributed in 220 V thanks to an inverter of 4’000 W. This installation will produce the total needs for the refuge except from the large-scale electricity consumers (washing machine, dishwasher...). A power generating unit of 10 kVa will ensure the production of electricity in complement. The cost of the photovoltaic installation is about 50’000 euros (material + installation + transport by helicopter) and will be financed to a total value of 85% within the programme called “FACE”.

2. The domestic hot water will be also produced by a thermal solar installation. Approximately 20 m² will be necessary to the production of domestic hot water, a complement being brought by the propane boiler in the event of prolonged bad weather. The cost of such an installation is about 20’000 euros.

Generally, simple payback cannot be calculated in this case. Indeed, the refuge is located in isolated site from the electrical network. A photovoltaic installation is essential to ensure the production of electricity and makes it possible to avoid the creation of a power line. This installation also makes it possible to limit the operation life of the power generating unit. As for the thermal solar installation, it makes it possible on the one hand to save propane, but especially to limit the number of rotation of helicopter (very expensive) necessary to its delivery.

These kinds of measures can be summarised through the following table:

Description Energy saving (kWh/year)

CO2 saving (ton / year)

Economic saving (€/year)

Investment (€)

Simple pay-back (years)

Lighting low consumption (LBC)

2’500 Not calculated 450

Refrigerator and freezer (cat. A)

1’000 Not calculated 1’500

PV installation 2’000 Not calculated 50’000

Solar hot water

15’000 Not calculated 20’000

ENERGY AUDIT

SUMMARY

« CHATEAU DES AVENIERES »



• The Château des Avenières is located on the Southern slope of Salève at 1’000 m of altitude, it was built in 1907 and was renovated in 1994, that’s a gourmet restaurant, with 12 rooms with individualized style, a watery basin and a large forest in the immediate vicinity.

• The architectural style of the Castle is unique, building materials are traditional: stone and wood.

• Electric power ensures ventilation (simple flow), cold group and lighting. Heating of 1’500 m² and domestic hot water are provided by two fuel boilers feeding hydraulic systems to air unit heater (ground floor) and radiators (rooms).

ENERGY DEMAND

• 2 fuel boilers for the heating and domestic hot water of the castle (cumulus volume: 2* 500 L.) Propane heating system for the staff building (a hundred meters from the castle).

• Electricity : 160’000 kWh/an: ventilation, lighting, cold rooms; Fuel: 300’000 kWh/an: heating and domestic hot water; Propane : 6, 5 t/year: additional heating.

• 185 kWh/year/m² for the castle heating (more than 3’000 nights and 8’000 meals per year).

IMPROVEMENT ACTIONS Rational use of energy (RUE) :

- Centralized programmation and regulation of the heating on station with the reception

1. GENERAL DATAS

Name : CHATEAU DES AVENIERES

Adress: Les Avenières – 74 350 CRUSEILLES - FRANCE

Telephone: +33 (0)4 50 44 02 23

Contact person : M. Odin Nicolas

Type of lodge : Hôtel

Use range :

Open periods : whole year

Capacity : 12 rooms

Occupancy rate (%): autumn & winter = 40%; spring = 50%; summer = 80%

- Installation of water meter of the cumulus (knowledge and management of the volume of domestic hot water)

• Energy Efficiency :

- Refurbisment of the 1st floor windows: double glazing and door frames.

- Hygroadjustable extractions in the bathrooms (moisture probe starting extraction).

- Balancing of the heating hydraulic systems according to the exposure of the NORTH-SOUTH frontages: increase in the fluid flow of the Northern circuit and reduction of the fluid flow o in the Southern circuit.

- Treatment of the steel door, window frames and verandas cold bridges in rooms (installation of thermal stoppers : specific insulation inside the door frame).

- Choice of low consumption electric household appliances : A or B when replacement of the old material.

- Installation of low consumption lighting outside.

- Installation of independent shutters with automated closing at the ground and 1st floor

- Installation of thermostatic taps in the staff residence and regulator according to the outside temperature with external probe in Northern frontage.

- Installation of an isothermic floating cover in night period and/or of cold wind on the surface of the watery basin, this cover allows a significant heat saving (losses by convection under the effect of a cold airstream on the surface, by nocturn evaporation and thermic losses)


1. Possibility of installation of thermal solar collectors (plane glazed or “moquettes”) to increase the use period of the not heated watery basin (surface: 300 m², volume: 330 m3) and to obtain a temperature of the water from 20 to 25 °C of May 15 at September 15.

2. Project installation of a wood chips boiler with a heat network within the framework of the enlargement of the hotel (second building): not technically & economically measured.





Investment (€)


Solar Hot Water

19’000 4 950 20’000 20

Wood chips boiler

Not measured Not calculated

ENERGY AUDIT

SUMMARY

« AU BALCON DU LEMAN »



• The lodge is located in the hamlet of Vesins on the French slope of the Léman lake, 1’000 m of altitude, this old renovated farm has a table of hosts and 3 rooms with individualized style.

• The architectural style of the lodge is alpine and traditional, the building materials are traditional : stone and wood.

• The electric power ensures lighting. Heating and domestic hot water are provided by a wood chips boiler located in an additional building in the immediate vicinity. Hydraulic system of radiators ensures the heating of the 200 m² building.

ENERGY DEMAND

• 1 wood chips boiler for the heating and domestic hot water (cumuus volume: 300 L).

• Electricity: 3’500 kWh/year: lighting, electric household appliances; Wood chips: 58’000 kWh/year: heating and domestic hot water;

• 265 kWh/year/m² for the heating.

IMPROVEMENT ACTIONS

• Rational use of energy (RUE) :


Use of low consumption lighting

1. GENERAL DATAS

Name : Au Balcon du Léman

Adress: Chez les Vesins – 74 500 THOLLON LES MEMISES - FRANCE

Telephone: +33 (0)4 50 70 23 53

Contact person : M. Yves CHEREAU & Mme Ghislaine GALLAND

Type of lodge : Guest house

Use range :


Capacity : 3 rooms (+ 2 rooms soon)

Occupancy rate (%): 70% for the year


- Project of solar thermal installation: 15 m² of plane glazed on the 20 ° Southern roof of the additional building. It will bring 55 % of the future needs for domestic hot water (main lodge + 5 rooms), about 6’500 kWh/year. The annual economic profit is weak because of the supplement to wood chips at low cost.

The project is interesting for the complementarity’s needs and resources:

- In summer: solar hot water,

- In winter: heating and hot water with wood chips boiler.





Investment (€)


Solar Hot Water

6’500 2 300 15’000 with 50% of public funds

25

ENERGY AUDIT

SUMMARY

« REFUGE DE LARIEUX »



The lodge was built in isolated place at 1’500 m of altitude. It is an old mountain pasture without insulation. The building is used in summer and welcome mountain walkers (30 beds maximum).

ENERGY DEMAND

As the lodge is not grid-connected to the electricity network, electricity needs are limited ( about 1 kWh/open day). Heating and hot water production are made by a wood cooker, consumption is about 10 m3 / an of rough-hew.

IMPROVEMENT ACTIONS


The site being not grid-connected, energy consumption is already optimized.


Low Consumption lighting and fridge are used (cat. A)


Renewable energy sources are used for the heating and electricity production.

1. GENERAL DATAS

Name : refuge de Larieu - THONES

Adress: Les Diacquenot – 74 SAINT MARTIN - FRANCE

Telephone: +33(0)450021952 or +33(0)450603409

Contact person : Albert HOFER

Type of lodge : refuge and mountain pasture

Use range : The lodge is 2 hours walking from a road access. Walkers stay there for one night in general.

Open periods : June to September

Capacity : 30 beds

Occupancy rate (%): 100% during the week ends, 50% during the weeks





Investment (€)


Solar Hot Water

2’000 300 6000 20

ENERGY AUDIT

SUMMARY

« GITE LA FERME DU TOUR – LE GUARREC

»



M. Leguarrec is refurbishing an old country cottage on the commune of Servoz at 1’000 m. of altitude, to create a guest house. This lodge is embed between two other buildings. The original building was built in 1600, in wood material. The guest house will be composed by 4 rooms (6 beds).

ENERGY DEMAND

50’000 kWh/year are used for heating and hot water. Needs are covered by a wood chips boiler installed in 2004. 5’000 to 7’000 kWh/year are used for specific electricity appliances.

IMPROVEMENT ACTIONS

• Rational use of energy (RUE) : In order to gather heating production, a house close to the cottage (30 meters) will be feed by a heating network. Heat will be generated by wood chips boiler. Joint cost are estimated about 6’000 € and will save 1’500 L of fuel.

• Energy Efficiency : The lodge was entirely refurbished in 2004, especially with insulation. Lighting and cold systems are also low consumption.


A wood chips boiler was installed to feed the cottage. Soon, a house will be connected to the heating network. Actually, the boiler is 55 kW and use 50 m3 of wood chips a year. With the connected house, consumption will be 75 m3 of wood chips. The wood chips are produced from a close joinery.

1. GENERAL DATAS

Name : La ferme du Tour

Adress: Chef Lieu – 74440 SERVOZ - FRANCE

Telephone:

Contact person : Jean Louis LE GUARREC


Use range : during the holidays


Capacity : 4 rooms (6 beds)

Occupancy rate (%): 34 weeks a year





Investment (€)


Wood chips boiler

50’000 3’000 50’000 with 40% of public funds.

10

Heating network

25’000 1’500 60’000 4

ENERGY AUDIT

SUMMARY

« GITES DE CHAUNU »



The house is composed by 2 lodges in Marcellaz-Albanais, 600 m in altitude. Built in 1993, each lodge has a kitchen, 3 bedrooms and a quality environment : swimming-pool, countryside, lake and mountains. The building is a wood construction. Electricity is used for lighting and specific electrical appliances. Heating for a 150 m2 area and hot water are produced by a fuel boiler feeding hydraulic system and radiators.

ENERGY DEMAND

The fuel boiler produces heating and hot water for the lodges (cumulus volume = 150L).

Electricity : 4’000 kWh/year : lighting, electrical appliance

Fuel : 20’000 kWh/year : heating (100 kWh/year/m²) and hot water

IMPROVEMENT ACTIONS

• Rational use of energy (RUE) : Using Low Consumption Lighting

• Energy Efficiency


Project of a solar thermal installation for hot water, on the South-West roof, about 8 m².

1. GENERAL DATAS

Name : Gîtes de Chaunu

Adress: Chemin de Chaunu- 74 150 Marcellaz-Albanais - FRANCE

Telephone: +33 (0)4 50 69 73 04

Contact person : M. et Mme Martin Jean-Louis et Claudie


Use range :


Capacity : 2 lodges (2*6 people)

Occupancy rate (%): 100% in summer, 50% in winter





Investment (€)


Solar hot water

4’000 1 250 4’000 with public funds.

15

ENERGY AUDIT

SUMMARY

« LA MELUSINE »



• The lodge is located in St Gervais les Bains in front of the Mont-Blanc, 900 m in altitude. Built 100 yers ago, this old cottage has a wide kitchen, 20 bedrooms with traditional alpine style, in the countryside.

• The architectural style is alpine, construction materials are classical : stone and wood, roof in corrugated sheet.

• Electricity is used for lighting and electrical appliance. Heating (450 m²) is ensured by a fuel boiler with radiators. Hot water is produced by the same boiler.

ENERGY DEMAND

The fuel boiler produces heating and hot water for the lodge (cumulus volume = 500L).



IMPROVEMENT ACTIONS

• Rational use of energy (RUE)

• Energy Efficiency


1. GENERAL DATAS

Name : La Mélusine

Adress: 49, chemin du Creux – 74 190 Saint-Gervais-les-Bains - FRANCE

Telephone: +33 (0)4 50 47 73 94

Contact person : M. Lettoli Stéphane


Use range :


Capacity : 20 bedrooms (=50 beds)

Occupancy rate (%): 100% in August and February, 80% in January, March and July, 60% in Spring, 20% in Autumn

Project of a solar thermal installation for hot water, on the South roof. The sun collectors will have to be clean from the snow regularly.

20 m² of sun collectors will produce 14’000 kWh, so 40% from the needs. A 1’000 L solar cumulus will feed the supplement cumulus. The solar cumulus and the regulation will be located at the ground floor close to the supplement cumulus and the fuel boiler.

Invest Cost are 20’000 € HT. Public fundings can reach 50% (Ademe + Rhône-Alpes Region).

Operation Cost include energy consuption for hot water, 0,05 € TTC/kWh for the fuel ressource (with a 85% output).





Investment (€)


Solar installation

16’500 5 600 20’000 with 50% public funds.

15 (with fundings)

ENERGY AUDIT

SUMMARY

« LES MOULINS »



• The « Château des Moulins » is located in Samoëns, 700 m in altitude. Built in 1880 and refurbished, it’s equipped with a kitchen, a living room and 15 beds. The Samoëns station (alpine and touring ski, trekking, alpinism, mountain bike, climbing,…) and the natural site “Cirque du Fer à Cheval” are very close.

• The architectural style is alpine, construction materials are classical : stone and wood.

• Electricity is used for lighting and electrical appliance. Heating (165 m²) and hot water are produced by a fuel boiler that should be changed as soon as possible.

ENERGY DEMAND

The fuel boiler produces heating and hot water for the lodge (cumulus volume = 2*300L).



IMPROVEMENT ACTIONS


• Energy Efficiency : Use of Low Consumption lighting


Wood chips project :

1. GENERAL DATAS

Name : Les Moulins

Adress: Gîte Les Moulins – 74 340 SAMOËNS - FRANCE

Telephone: +33 (0)4 50 34 95 69

Contact person : Mme GABORIAU Mireille


Use range :


Capacity : 15 beds

Occupancy rate (%): 100% in February, July and August, 50% in Spring, 20% in Autumn.

Yhe wood pellets boiler wil be 35 to 40 kW and will cover the annual needs of 45 to 50’000 kWh. 12 tonnes/year of pellets will be necessary (20 m3/year). The 7 m3 storage area will be located underground in place of the fuel storage. In winter, autonomy will be 2 months, the delivery can be operated by a cistern truck with blower pipe, trough an existing hole. A storage of pellets in bags can be managed if deliveries are not possible. The storage will have to be located in a dry area and used regularly.

Solar project :

Sun collectors will be placed on the south roof (30° inclination).10 m² will produce 3’100 kWh/year, about 55% of the annual needs. A solar storage of 500 L will be necessary for the hot water. It will feed a supplement cumulus (300 L) feeded by a fuel boiler. The solar cumulus and the regulation will be placed underground close to the supplement cumulus and the fuel boiler.

Hot water savings are estimated about 200 € TTC / year for 10 m² of sun collectors, which corresponds to 400 L fuel or 1,6 m3 of pellets.





Investment (€)


Solar installation

3’100 2,5 200 9’000 HT with 4’000 € of public funds.

20 (with funds)

Pellets boiler 5’000 12 500 20’000 HT with 8’000 € of public funds.

16 (with funds)

ENERGY AUDIT

SUMMARY

« LES RAPILLES »



• The lodge is located in Marignier, 500 m in altitude. Built 100 years ago, this huge building is composed by 2 lodges.

• The architectural style is classical, construction materials are traditional: stone and wood.

• Electricity is used for lighting and electrical appliances. Heating (500 m²) is ensured by radiators and a wood chips boiler (installed in the end of 2005). Hot water is produced by a solar thermal installation with a fuel supplement at this time and a wood chips supplement soon.

ENERGY DEMAND

The actual fuel boiler produces heating and a part of hot water for the lodge. The boiler will be replaced by a wood chips one of 70 kW. Hot water is produced by 10 m² of sun collectors (solar cumulus = 750 L) and completed by the boiler.


Wood chips : 100’000 kWh/year : heating (180 kWh/year/m²) and 50% of the hot water

IMPROVEMENT ACTIONS


• Energy Efficiency : Use of Low Consumption lighting and electrical appliances

• Renewable energy sources (RES) integration


1. GENERAL DATAS

Name : Les Rapilles

Adress: Gîte Les Rapilles – 650 route de Chatillon – 74 970 Marignier - FRANCE

Telephone: +33 (0)4 50 34 63 41 – +33 (0)4 50 34 63 72

Contact person : M. Jean Léger


Use range :


Capacity : 20 beds

Occupancy rate (%): 100% in summer (6 weeks) and winter (1 month)




Investment (€)


No improvements necessary

ENERGY AUDIT

SUMMARY

« HÔTEL LE SEMNOZ »



• The hotel of Semnoz is located at the top of the station of Semnoz with 1’650 m of altitude; built in 1870 and regularly renovated, the hotel has a restaurant, 14 rooms and an environment of quality: family winter and summer station (Alpine and Scandinavian ski, mountain pastures, excursions).

• The hotel architectural style is traditional and corresponds to the beginning of tourism in the Alps of North, the building materials are traditional: stone and wood.

• Electric power ensures electric household appliances and lighting. The 600 m² surface heating and domestic hot water are provided by a fuel boiler feeding hydraulic systems of radiators.

ENERGY DEMAND

• The fuel boiler produces heating and domestic hot water for the hotel and the restaurant (cumulus volume: 1’000 L).

• Electricity: 30’000 kWh/year: lighting, electric household appliances; Fuel: 140’000 kWh/year: heating and domestic hot water;

• 150 kWh/year/m² for the hotel heating (more than 2’500 nights and of 6’500 meals per year).

IMPROVEMENT ACTIONS


Actions on the electric subscription: checking of electric consumption, checking of EDF contract.

1. GENERAL DATAS

Name : Hôtel Le Semnoz

Adress: Le Semnoz – 74 320 Leschaux - FRANCE

Telephone: +33 (0)4 50 01 23 17

Contact person : M. Couttet Alexandre

Type of lodge : hôtel

Use range :

Open periods : summer & winter (closed from 15/5 to 15/6 and from 15/10 to 15/12

Capacity : 14 rooms

Occupancy rate (%): 90% in February, July & August; 60% in March, June & December; 30% in January, April, May and September


Actions on the building : Installation of double glazing and treatment of the windows sealing, installation of air vents in the rooms on the higher door frames of the double windows, balancing of the hydraulic systems of the radiators.

Actions on the equipment : Insulation of the roof (in under-roof), Installation of a controlled mechanical ventilation (VMC) simple flow (on outgoing air) in the bathrooms (stops extraction, ventilation shaft vitiated). Modulation of the air flow can be controlled to the moisture of the ambient air (hygroadjustable VMC). Installation of low consumption lighting outside and in the night reception. Insulation of the wood walls of the second floor with mineral, synthetic or natural insulator (possible technical process : doubling on metal frameworks adapted to the irregular walls). "Désembouage" of the hydraulic systems of heating (high pressure cleaning of the conduits)


Project of solar equipment: 30 m² of integrated solar thermal collectors in the width of the Southern roof. Feasibility of the project also depends on a favourable opinion of the commune of LESCHAUX (declaration of building from the authority) and the Architect on the Building industries on France in the event of classification or inscription on the site on Semnoz and/or the hotel. The installation of thermal solar collectors for the production of Domestic hot water (ECS) of the Hotel can cover up to 50 % of the annual needs for ECS. - the orientation of the roof (full South) is optimal. - the surface of sensors inclined according to the slope of the roof (45°) would be 30 m², the sensors would be posed above the sheet cover, the installation of a thermal solar installation will make it possible to preheat domestic hot water of the hotel in all seasons and to heat it in summer, the orientation and the slope of the roof make it possible to obtain a great productivity of the sensors, the time of return on investment is thus relatively interesting (13 years).





Investment (€)


Solar Hot Water

6’500 2 300 15’000 with 50% of public funds

25

altener project number eie/04/252/s07 project number eie/04/252/s07.38608 renewable energy sources...

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