1 PRODUCTION OF A MANUAL FOR STATISTICS ON ENERGY CONSUMPTION IN - PowerPoint Presentation

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PRODUCTION OF A MANUAL FOR STATISTICS ON ENERGY CONSUMPTION IN HOUSEHOLDSMESH PROJECT

3th Working Meeting

Vienna, 3th May 2012

WP2: DISCUSSION OF METHODOLOGY

Jesús Pedro García MontesIDAE – General Secretary – Planning and Studies Department

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Definitions: End usesMesh project: Production of a Manual for Statistics on Energy Consumption in Households

End Use

: the use of energy commodities by a household, in order to obtain a certain service (heating, cooling, hot water etc.). Five major energy end-uses are distinguished for the energy consumption in households; space heating, water heating, cooking, space cooling, lighting and electrical appliances

.

Space Heating.Water Heating.Space cooling.Cooking.

 Lighting and electrical appliances.

Other end uses

.

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Definitions: End usesMesh project: Production of a Manual for Statistics on Energy Consumption in Households

End

Uses Definitions

: before to define the different end usesCome thoughts:

Electricity consumption has problems to disaggregate by uses.Centralized systems for space heating and water heating present the same problems.Additionally, households consuming an only type of energy could have problems to disaggregate the consumption by end uses. For example: households supplied by natural gas or electricity.

Solutions:

In these cases the breakdown by uses should be determined by modeling from theoretical approaches, “in situ” measurements or mixtures of both.

Manual should incorporate methods that help the user to disaggregate the consumption by uses.

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Definitions: End uses – Space heatingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Definition of Space heating

:

There are two possible definitions

The use of energy to provide heat in a dwelling. Including electrical heating.A more restrictive but more appropriate definition, according to the nature of energy end uses in households, is the use of energy to provide heat in an interior area of a dwelling.Discussion: should we consider the external heating for terraces?

Come thoughts:

The terraces have not a good insulation. If we included outdoor heating in space indoor heating, the consumption by m2

will be higher and no comparable with other house without terrace.The heaters are different for indoor heating and outdoor heating and it is possible to separate outdoor and indoor heating.

For space cooling , we not considered

the fans, blowers or nebulizers.

Information on fuel type used must be included.

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Definitions: End uses – Space heatingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Systems for Space heating

: depending on the information available in each country two possible of breakdown:

Basic o minimum breakdown:

Main / Supplementary: the main space-heating system provides most of the heat to the dwelling. The supplementary space-heating equipment is used less often than the main space-heating system.Collective / Individual: the main space-heating system may be a collective system, serving more than one households. An individual system provides heat to a single household. District heating forms a separate type of main space-heating systems

.

More completed disaggregation:

Local system:

non-central heating (stoves, fireplaces, electric radiators etc.).

Floor central heating:

for

one

dwelling in one building.

Central heating:

for

multiple dwellings in one

building.

District heating:

heating

plant or boiler rooms for several

buildings.

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Definitions: End uses – Space heatingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Type of Heating

equipment

: types of heating equipment :

Combi boiler: is a water heater and a central heating boiler, combined within one compact unit. It could be normal boiler or high efficiency boiler.

Central steam / hot water space-heating system:

providing steam or hot water to radiators / convectors or pipes (under-floor heating) in a dwelling. It could be normal or high efficiency device.

Built-in electric

system: a system of electrical resistances (usually as under-floor heating) providing heat to individual rooms; the system is part of the building electrical installation.

Central warm-air space-heating system:

providing warm air through ducts to the dwelling

Heat

pumps:

a device that brings heat in the dwelling from the environment using a compressor (mechanical work)

Stove:

a non-portable apparatus that furnishes heat using solid or liquid fuels

Fireplace

Electric storage heaters, portable electric heaters

Portable kerosene / LPG

heaters

Other

Discussion:

Where

do we

include solar panels for heating?

Discussion: cooking equipment

for heating could

be categorized like a stove, but we need

to be able

to breakdown the

consumption by uses

.

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Definitions: End uses – Space heatingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Age

of Heating

Equipment: age of the main heating system of the

household.Availability and type of temperature control instruments (thermostats): Thermostat: a device that turns on or off the heating system so that a desired temperature is reached in a heated space.

Discussion:

Is it realistic ask this information?

Come thoughts:

Households could inform about availability of this device, but about of its real use?

And, households could inform about the average room temperature in dwelling during the heating season?

If we considered necessary information about thermostat we should ask:

Availability

:

number

of thermostats controlling the main heating system.

Thermostat types

:

Manual on-off thermostat

: allowing

the manual control of the heating period during the

day.

Programmable thermostat:

designed to adjust automatically the temperature at different times of the day or night and days of the week.

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Definitions: End uses – Water heatingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Definition of Water heating

:

The use of energy to heat water for hot running water, bathing, cleaning and other non-cooking applications..

Discussion: should we include hot water for swimming-pool?Come thoughts:There are usually only a heater for all uses of hot water, but….

It’s the same case for space heating and water heating. The heater could be the same.

Consumption by litre of hot water it is not comparable between a home with swimming and the same home without swimming.

Information on fuel type used must be provided.

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Definitions: End uses – Water heatingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Systems for Water heating

: depending on the information available in each country two possible of breakdown:

Basic o minimum breakdown:

Main / Supplementary: the main water heating system provides most of the hot water to the dwelling. The supplementary water heating equipment is used less often than the main water heating system.

Collective / Individual: the

main water heating system may be a collective system, serving more than one households. An individual system provides

water heating to a single household. District water heating

forms a separate type of main water heating systems

.

More completed disaggregation

:

Local system:

non-central water systems

(stoves,

electrical appliances, etc

.).

Floor water heating:

for

one

dwelling in one building.

Central heating:

for

multiple dwellings in one

building.

District heating:

water heating plant

or boiler rooms for several

buildings.

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Definitions: End uses – Space heatingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Type of

Water heating equipment

: the following types of heating equipment may be considered:

Combi boiler: is a water heater and a central heating boiler, combined within one compact unit. It could be normal boiler or high efficiency boiler.Water Heater: a thermally insulated vessel designed for heating and storing hot water.

Water Heater instant: a thermally vessel designed for heating water without storage.

Discussion: Where we include solar panels for water heating

?

Tank size, age: the volume (litres) and age of the water heater. Broad classes may be used for reporting tank size and age.

Discussion

:

is it realistic?

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Definitions: End uses – CookingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Definition of

Cooking

:

The use of energy to prepare meals and hot drinks.Discussion: should do we include hot drinks?

Come thoughts:

Hot drinks may be prepare by other equipment very different to cooker:

café machine, water heaters, kettles…

The main consumption in the service of cooking is in charge of cooker, oven, hob, and cooking stove

. That is, in the equipment to make the basic preparation of food.

Micro ovens are used to heat food already prepared or to prepare hot drinks.

Micro

ovens,

café machine, water heaters,

kettles, etc. could be considered electrical appliances

.

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Definitions: End uses – CookingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Systems for

cooking service

:

Basic o minimum breakdown:Main: the cooking system provides most of the cooking services to the households.

Supplementary: the supplementary cooking system

is used less often than the main cooking system

.

Type of Water heating equipment: the following types of cooking equipment may be considered

:Cooker.

Oven.

Hob.

Cooking stove.

Age

of Primary Cooking

Equipment

: only for main cooking equipment.

Fuel type:

only for main cooking equipment.

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Definitions: End uses – Space CoolingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Definition of

Space Cooling

:

The use of energy for cooling and dehumidifying the air in a dwelling by a refrigeration unit (fans, blowers and other appliances not connected to a refrigeration unit are not included).Residential air conditioning technologies include window air conditioners, central air conditioners and heat pumps.

Air conditioning equipment type

Central

system that has ducts to bring cooled air in the individual rooms of the dwelling.

Electrically driven individual units providing cooled only to single rooms.

Age

:

the

age of the central air-conditioning system or the oldest individual unit.

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Definitions: End uses – Space coolingMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Availability

and type of temperature control instruments (thermostats

)

: Thermostat: a device that turns on or off the heating system so that a desired temperature is reached in a heated space.Discussion: Is it realistic ask this information?

Come thoughts:

Households could inform about availability of this device, but about of its real use?

And, households could inform about the average room temperature in dwelling during the cooling

season?

If we considered necessary information about thermostat we should ask:

Availability

:

number

of thermostats controlling the

cooling

system.

Thermostat types

:

Manual on-off thermostat

: allowing

the manual control of the

cooling

period during the

day.

Programmable thermostat:

designed to adjust automatically the temperature at different times of the day or night and days of the week.

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Definitions: End uses – Lighting and Electrical AppliancesMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Definition of

Lighting and Electrical appliances

:

The use of energy by the lights and electrical appliances in a dwelling not included in other end uses..The service of Space Heating, Hot Water, Cooking and Space Cooling supplied by electricity are not include.Lighting and Electrical Appliances equipment type

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Definitions: End uses – Lighting and Electrical AppliancesMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Lighting and Electrical Appliances

equipment

type

In Spain

86% of consumption

of electrical appliances

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Boundaries sector 1/3 Mesh project: Production of a Manual for Statistics on Energy Consumption in Households

Private cars aren’t object to the Manual.

Consumption of private cars is reported in the transport sector.

But, in chapter “Consumer surveys” we could suggest to user to incorporate in the survey some questions about private cars.

A

medium family reside in their second home a maximum of

33

% of the year.

Equipment

linked to the second home tends to be lower in quantity and

size.

Methodology to develop will be valid for both main and second residence.

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Boundaries sector 2/3 Mesh project: Production of a Manual for Statistics on Energy Consumption in Households

Energy consumption associated to economic activities could be big.

Difficulties to determine the energy consumption associated with economic activities. Need to estimate it from measurements or modeling.

But, statistics should be of energy consumption in households. It’s not possible to include energy consumption associated a economic activities.

Rest of consumption (swimming pool, lawn moving, outdoors heaters, etc.) should be reported, but:

Like other consumption?

Like external consumption to dwelling?

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Boundaries sector 3/3: final proposal from IDAEMesh project: Production of a Manual for Statistics on Energy Consumption in Households

Outdoor recreation activities

(mainly in gardens)

Swimming poolLawn mowingoutdoor heaters

Main residence: only private consmptionSpace heatingWater heatingSpace coolingCookingOther

(electricity and others energies)

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Thank you very much for your attention