standby power a ghost

8/9/2019 Standby Power a Ghost

1/55

Standby powerNow the time comes to concentrate on it

Prepared By MentorGurpinder Singh Dhindsa Dr.S P Singh

Professor & Head

THINGS THAT GO BLIP IN THE NIGHT

WITHOUT DISTURBING YOU


2/55

What is standby power?

Standby power is electricityused by appliances whilethey are switched off or notperforming their primary

function. These productsdraw power 24 hours a day,often without the knowledgeof the consumer.


3/55

Standby mode?

Many people are surprised to learn that they cannot stoptheir appliances from using electricity without pullingthe plug from the socket or switching the power off at

the wall. Today, televisions, video-cassette recorders(VCRs), mobile telephone chargers, computers, faxmachines and many other appliances consumeelectricity 24 hours a day. These appliances are said to

be in standby mode when they are not being used orare not performing their primary function.


4/55

Standby power is also known as

Vampire power

Vampire draw

Phantom load

Leaking electricity


5/55

What is the Scope of this study?

The scope of this study is broadly focuses on energyconservation through standby wastages which aremostly neglected due to lack of awareness and due tovery little consumption per appliance.

As there is almost no studies carried out aboutstandby power losses in developing countries likeIndia. Developing countries have less electricappliance, but the appliances that are available are

most of the time not the state-of-the-art technologyand thus their standby power losses can be assumedto be higher for the individual appliances


6/55


7/55

ProblemAlmost in every house, more than 20

electrical appliances are used in routinelife which includes approximate 15appliances, which are always plugged inand always in ready to use condition and

we can say that appliances are

consuming power in standby mode.

Now standby losses are not too

small to be neglected.


8/55

Almost any product with an external power supply, remotecontrol, continuous display (including an LED), or chargesbatteries will draw power continuously. Sometimes there is noobvious sign of continuous power consumption and you need a

meter to be certain.An appliance multi meter (which can be ableto measure current in mille ampere)can be used to find out howmuch energy is used by standby power.Standby powerconsumption can many times be indicated qualitatively, if after aseveral hours of non-operation a device is still warm to touch(usually surface near to the power plug). Such elevated surfacetemperature will depend on the standby power consumption.

Identifying devices


9/55


10/55


11/55

MethodologyThe standby power consumption of

several appliances is measured andthe average consumption is find outfor each appliances in thehousehold.The average consumption

per household multiplied by the

number of households in a countrygives the total standby powerconsumption for one country.

To conduct this study, 20 appliancesare included to measure their

current in different conditions withmulti meter. (DT9205A)


12/55

Standby power summary table Product Mode Average power W

Air conditioner window 1.5 T Standby 0.08

Phone Charger On ,but phone fully charged 2.88

On, phone is charging 3.46

On, phone is not connected 0.23

Computer display CRT 17 Off 3.16

On 57.38

Computer display LCD Off 2.85

On 23.94

Sleep mode 3.76

Computer UPS Off 6.95

On 20.52

Computer CPU Off 5.75

On 65.55

Computer notebook On fully charged 31.92

On charging 47.42


13/55


14/55

Standby power summary table

Product Mode Average power W

Photo camera On charging 3.26

Fully charged 1.93

Movie camera On charging 3.11

Fully charged 0.23

Microwave ovens Standby mode 0.79

Mosquito Destroyer On 4.88

Inverter 500VA No charging 80


15/55

Quantify of problem

Now problem is identified, That home appliancesare continuously eating valuable power without

performing there primary function.

We have to now quantify the problem, that how

major it is in current situactions? And how it isgrowing?

For that I have collected the data of 415 homes in

Punjab.


16/55

Data analysis tableIncome groups Income

0.2-.50lakh

Income .51-1.0 Lakh

Income1.1-2.0

lakh

Income2.1-5.0

lakh

Incomeabove 5.0

Lakh

Total no of families 30 83 142 117 43

No. of Members in Family: 147 441 729 574 244

Annual Income: 12.53 74.42 237.7 395.26 469.7

Televisions @ your home 31 95 178 168 83

% of TVs with Families 103.33 114.46 125.35 143.59 193.02

Switched off by Remote 15 51 87 95 58

Switched off By Switch 16 44 91 73 25

Air Conditioners @ your

home

1 9 26 55 51

% of ACs with Families 3.33 10.84 18.31 47.01 118.60

Switched of by Remote 0 4 16 31 33

Switched off By Switch 1 5 10 24 18

Inverters @ your home 10 43 87 74 43

% of Inverters withFamilies

33.33 51.81 61.27 63.25 100.00

Always switch on: 10 43 87 74 43

VCD/DVD Players @ yourhome

8 43 75 88 43

% of VCD/DVDs withFamilies

26.67 51.81 52.82 75.21 100.00


On only when required: 8 38 71 84 36


17/55


18/55

Data analysis table (continue)Income groups Income

0-.50lakh

Income .51-1.0Lakh

Income1.0-2.0

lakh

Income2.0-5.0

lakh

Incomeabove 5.0

Lakh

Scanners @ your home 0 0 7 5 2

% of Scanners withFamilies

0 0 4.93 4.27 4.65


Always On WhenComputer on:

0 0 6 0 1

On only when

required:

0 0 1 5 1

Speakers @ your home 2 29 65 74 39

% of Speakers withFamilies

6.67 34.94 45.77 63.25 90.70


Always On WhenComputer on:

2 22 48 53 25

On only whenrequired:

0 6 16 17 10

Mosquito Destroyer @your home

31 76 140 134 54

% of MosquitoDestroyers withFamilies

103.33 91.57 98.59 114.53 125.58

Always switch on: 3 8 21 16 3On only when 28 68 119 118 51


19/55

Family Distribution As Per Annual

Income

P t f TV ith F ili


20/55

Percentage of TVs with Families

Income


21/55

Percentage

ACs with Families Income

100% families above 5.0 lakh income have ACs

Percentage


22/55

Percentage

of Inverters with Families

Above 5.0 lack income group have 100% inverters and they have also

Generators as backup.

P t f VCD/DVD ith


23/55

Percentage of VCD/DVDs with

Families

P t f VCR/M i t ith


24/55

Percentage of VCR/Music system with

Families


25/55

Percentage of Personal Computers


26/55

Percentage of Personal Computers

with Families


27/55

Percentage of Printers with Families


28/55

Percentage of Speakers with Families

P f L i h F ili


29/55

Percentage of Laptops with Families


30/55


31/55

Percentage of Mobile Chargers with

Families


32/55


33/55

From Graph it is shown that 0.2-0.5 lakh income group have 100% TVs

Cell phones and Mosquito destroyers


34/55

In this income group every family have 2 cell phones. And every

Two families have one inverter.


35/55


36/55


37/55

In income group of 5.0 lakh every family have 4 cell phones.

All gadgets have good volume except printers and scanners.


38/55


39/55

As the Income is Increasing Standby power also increases


40/55


41/55

Above graph shows that TVs mostly remain on standby mode

during their life cycle.


42/55

In Every home inverter always plugged on whether

it is charging the battery or not.


43/55

Almost 14% if Indias population equal no. of cell phone chargers

remain on all the time.

power consumed by Television on


44/55

power consumed by Television on

standby mode :

Now for calculations Indias total populationconsidered 100 crore

It is shown in the graph that only 26% of Indias

population, no of televisions are running in India. And14.33% of population remains on stand by mode.

Power consumption by one television on standbymode= 13.57W (Calculated)

Therefore power consumption by televisions on standby mode = 1944 MW


45/55

Power consumed by cell phonecharger on standby mode

From the study it is shown that only13.72% of Indias population cell phone charges remain on withoutcharging the cell phone.

It is calculated that one cell phone charger consumes 0.23watt when it is on and cell phone is not connected or it isfully charged.

Therefore power consumption by cell phone charger =

31.55MW

P d b i


46/55

Power consumed by inverters on

stabdby mode.

Study shows that 12.04% of Indias population, inverters are runningin India. And all are always in on position.

It is assumed that only 30% time they remain in standby mode.( meansat that time they are not charging the battery )

Power consumption by one inverter on standby mode = 80W

Power consumed by total no of inverters 2889.6MW

Equipment wise Stand by power


47/55

Equipment wise Stand by power

consumed in IndiaS. No. Equipmenton

standby modeStandbyPowerconsumed

1. Televisions 1944 MW

2. Cellphone

charger

31.55MW

3. Inverters(Domestic powersupply system)

2889.6MW

Total 4865.15 MW

The installed power generation capacity of India = 147,000 MW

Percentage standby consumption of above three appliances = 4.0%


48/55

Operation practice

Switch off the TV by remote is just comfort level(means only when we switch off the TV byremote at night and it continuously eating

power all night approx.8-10 hrs.)

Putting the cell phone charges on with outcharging the cell phone is just negligence or lackof awareness As we can off the switch when we

remove the cell phone from charger.


49/55

Li i i f hi d


50/55

Limitations of this study

This study is statistically too small to draw anyfinal conclusions of standby power consumptions,

but it gives an indication of the potential toreduce standby power losses. The current drawn

by appliances is very small that is in milleampere, so it is difficult to measure accurately

and to celebrate meter properly.

The data is totally assumed for calculationsbecause data collection is very difficult at countrylevel.


51/55

Probable Solutions


52/55

Probable Solutions

General Awareness

One Watt Initiative The One Watt Initiative is an energy proposal by the International Energy

Agency (IEA) to reduce standby power-use in all appliances to just one watt.

The 1-watt plan is an agreement across the world to reduce the standby power

losses. It is a voluntary agreement. The proposal is coming from theInternational Energy Agency and contains:

In all participating countries, it is forbidden by 2010 to produce applianceswith standby losses below 1 watt.

In all participating countries are the same definitions valid for the standbylosses.

All participating countries maintain the same procedure for the measurementof the appliance.

G l A


53/55

General Awareness:The government can take steps to decrease the losses. Onestep is the introduction ofstandards for standby powers.

A small decrease in convenience or comfort can also betolerated by the comnsumers

When shopping, search for low standby products. (Asking a

salesperson will probably be a waste of time.) ENERGYSTARproducts have lower standby

Buy a low-cost multi-meter, measure the devices in your

home and take targeted action. You will certainly be surprisedat what you discover and this exercise might even pay back

the cost of the meter in savings. Limited research suggests thatan informed and aggressive approach can reduce standby use

by about 30%.

Improved Technologies


54/55

Improved Technologies

Use a switchable power strip for clusters of computer or videoproducts. That way you can switch everything to zero with one action.

Switching devices on or off can be automated. Timers can be used to

turn off standby power to devices that are unused on a regular schedule.Switches can turn the power off when the connected device goes intostandby

Standby controllers are placed in between the socket and the appliance plug. The controller is based on a comparator. If the consumption

decreases below a specific value, the appliance is switched off after aspecific time.

Technical solutions to the problem of standby power exist in the form ofa new generation of power transformers that use only 100 milliwattsin standby mode and thus can reduce standby consumption by up to

90%.

Another alternative is to consider buying energy saving devices or

devices that offer a real off switch. Identifying a real off switch can bedifficult though, as even devices with a hardware off switch, e.g. TVs,often still do have standby consumption if not taken fully off energy

supply.

NOW TIME COMES TO DISTURB


55/55

NOW TIME COMES TO DISTURB

THE THINGS ON STANDBY

MODE

THANK YOU

standby power a ghost

Documents