Energy Efficiency

Play and learn to save energy

2013-06-07T23:50:00.000-07:00

Energy Saving Tips fpr Air Conditoners

2013-05-28T23:43:00.002-07:00

Use ceiling or table fan as first line of defence against summer heat, as running cost of using an AC could be 25 times or more than that of a ceiling fan.
Keep windows and doors of air-conditioned rooms closed as often as possible.
Avoid outside air intake: Since outdoor air is warmer and contains more heat and moisture than the conditioned air and thus it increases electricity consumption. Keep in mind that natural leakage through windows and doors will generally supply sufficient outdoor air for assuring comfort conditions and minimizing odor.
Remove obstructions (e.g., furniture, piled books, etc.) to air passage to the unit. AC operates most efficiently when intake and discharge airflows are free from nearby obstacles.
Set AC thermostat settings properly: AC uses 3 to 5 percent less energy for each degree set above 22°C, therefore set AC’s thermostat at a temperature as high as is comfortably possible (25 - 26°C) in the summer. Smaller the difference between the indoor and outdoor temperatures, lower will be the electricity consumption.
Consider using an interior ceiling fan in conjunction with your AC to spread the cooled air more effectively within the room. Using fan allows you to set the thermostat temperature higher and thus reduces the energy consumption.
Do not set your thermostat at a colder setting than normally needed when you turn on your air conditioner; it does not cool your room any faster and could result in excessive cooling and unnecessary expense.
Do not place lamps, televisions or other electric appliances near AC. As these appliances generate heat, and the thermostat senses heat from these appliances causing the air conditioner to run longer than necessary.
Plant trees and shrubs to keep the day’s hottest sun off your house, wherever possible. This will reduce energy consumption in AC.
Clean the air-conditioner filter regularly: A dirty air filter reduces airflow and may damage the unit. Clean filters enable the unit to cool down quickly and use lesser energy. A filter that slides out easily facilitates easier cleaning. Follow the manual’s instructions for removal and cleaning of filter.
Clean outdoor coils when they become dusty. Efficiency of AC degrades in dusty conditions, and especially when layers of dirt and mud are evident.
Make sure upon installation and routine maintenance that the unit is well-sealed from the outdoors.
Give the annual maintenance contract of AC directly to the manufacturer or its authorized

IS:12615-2011

2013-03-22T10:14:00.000-07:00

The New IS:12615-2011 is based on the International Standard IEC 60034-30 (2008) which defines New Efficiency Classification for single speed, three phase, induction motors.
The IS:12615-2011 covers single speed, three-phase, 50Hz, cage induction motors that:
• have rated voltage ≤1000V;
• have a rated output 0.37kW ≤ PN ≤ 375kW;
• have either 2, 4 or 6 poles;
• meet frame size to output relation as stipulated in IS:1231 (for outputs covered by IS:1231);
• are rated on the basis of either duty type S1 (continuous duty) or S3 (intermittent periodic duty) with rated cyclic duration factor of 80% or higher;
• are capable of operating direct on-line;
• are designed for operation on virtually sinusoidal and balanced voltage conditions as defined in 7.2.1 of IS/IEC 60034-1;
• designed for an ambient temperature not exceeding 40°C and altitude not exceeding 1000m;
• have degree of protection IP44 or superior;
• have method of cooling IC411 in accordance with IS 6362 / IEC 60034-6;
• have service factor not exceeding 1.0.

The Efficiency classes defined are:
IE1 - Standard Efficiency
IE2 - High Efficiency
IE3 - Premium Efficiency

The values of efficiency for motors to classify as IE2 or IE3 in accordance with the new IS:12615-2011 are as under:

kW	2 Pole			4 Pole			6 Pole
	Frame Size	Efficiency %		Frame Size	Efficiency %		Frame Size	Efficiency %
		IE2	IE3		IE2	IE3		IE2	IE3
0.37	71	72.2	75.5	71	70.1	73	80	69	71.9
0.55	71	74.8	78.1	80	75.1	78	80	72.9	75.9
0.75	80	77.4	80.7	80	79.6	82.5	90S	75.9	78.9
1.1	80	79.6	82.7	90S	81.4	84.1	90L	78.1	81
1.5	90S	81.3	84.2	90L	82.8	85.3	100L	79.8	82.5
2.2	90L	83.2	85.9	100L	84.3	86.7	112M	81.8	84.3
3.7	100L	85.5	87.8	112M	86.3	88.4	132S	84.3	86.5
5.5	132S	87	89.2	132S	87.7	89.6	132M	86	88
7.5	132S	88.1	90.1	132M	88.7	90.4	160M	87.2	89.1
11	160M	89.4	91.2	160M	89.8	91.4	160L	88.7	90.3
15	160M	90.3	91.9	160L	90.6	92.1	180L	89.7	91.2
18.5	160L	90.9	92.4	180M	91.2	92.6	200L	90.4	91.7
22	180M	91.3	92.7	180L	91.6	93	200L	90.9	92.2
30	200L	92	93.3	200L	92.3	93.6	225M	91.7	92.9
37	200L	92.5	93.7	225S	92.7	93.9	250M	92.2	93.3
45	225M	92.9	94	225M	93.1	94.2	280S	92.7	93.7
55	250M	93.2	94.3	250M	93.5	94.6	280M	93.1	94.1
75	280S	93.8	94.7	280S	94	95	315S	93.7	94.6
90	280M	94.1	95	280M	94.2	95.2	315M	94	94.9
110	315S	94.3	95.2	315S	94.5	95.4	315M#	94.3	95.1
125	315M	94.5	95.3	315M	94.6	95.5	315M#	94.4	95.2
132	315M#	94.6	95.4	315M#	94.7	95.6	315L#	94.6	95.4
160	315L#	94.8	95.6	315L#	94.9	95.8	355L	94.8	95.6
200	315L	95	95.8	315L	95.1	96	355L	95	95.8
250	355L	95	95.8	355L	95.1	96	355L	95	95.8
315	355L	95	95.8	355L	95.1	96		95	95.8
375		95	95.8		95.1	96		95	95.8

Green Deal : An Innovative Finance Mechanism for Energy Efficiency Improvement

2013-02-16T05:49:00.000-08:00

The Green Deal is an innovative financing mechanism that lets people pay for energy-efficiency improvements through savings on their energy bills.

How the Green Deal works

The Green Deal process has four stages:

Assessment

This is carried out in your home or business premises by a Green Deal Advisor or Assessor. They will:

use standardised software to identify what energy efficiency or microgeneration improvements you can make and what the financial savings would be
outline how the payments will work
identify which improvements are likely to be cost effective
produce a Green Deal advice report outlining your options
declare any links they have with Green Deal Providers.

Finance

Once the Green Deal Advisor has given you your report, you can take it to one or more Green Deal Providers who can arrange and fund the improvements. If you decide to take up a Green Deal offer you will then sign a Green Deal Plan, which is a contract between you and the Green Deal Provider.

Installation

The Green Deal Provider will arrange for a Green Deal installer to come and carry out the work you have agreed to. The installer will have been vetted to ensure they meet the standards set out for the Green Deal.

Repayment

You pay back the cost of the improvements over time through your electricity bill. Your electricity supplier will pass your payments on to your Green Deal Provider. The amount you pay back will be no more than a typical household will save on heating bills, so you are likely to be better off overall from day one.

Although the cost of the improvements is repaid, this is not a conventional personal loan as the charge is attached to the electricity meter in your house and paid back through your electricity bill. If you move out, the new occupant will pick up the charge while also benefiting from a more energy-efficient property.

Interest will be charged on these payments, but the rate will be fixed and you will be shown a full schedule of all the payments before you sign up to the plan. It is up to the Green Deal Providers to decide on the interest rate, so it will be worth shopping around to find the best deal. You will be able to pay off the plan early if you choose, though the Provider may charge a fee for this.

Details of the Green Deal

What improvements will the Green Deal cover?

There are 45 measures or areas of home improvement approved to receive funding under the Green Deal, covering:

insulation
heating and hot water
glazing
microgeneration (generating your own energy).

For the non-domestic sector lighting, mechanical ventilation and heat recovery measures can also be covered. More areas may be added as technology develops.

Incentives to kick-start the Green Deal

The Government have recently launched the Green Deal Cashback Scheme, an incentive to encourage people to make improvements during the early days of the Green Deal. Eligible customers will receive cashback payments once they have measures installed, with the highest rates going to the earliest applicants.

£600 Million Approved For UK’s ‘Green Deal’ Energy Efficiency Program

2013-02-16T05:38:00.000-08:00

The Green Deal is an innovative financing mechanism that lets people pay for energy-efficiency improvements through savings on their energy bills. £600 million of public support for the UK’s ‘Green Deal’ energy efficiency program was recently approved by the European Union.

The Green Deal is a program designed to make investing in energy efficiency improvements, such as

insulation - eg loft or cavity wall insulation
heating hot water efficiency, modern boilers, etc,
draught-proofing
double glazing
renewable energy technologies - eg solar panels or wind turbines

The loans are then repaid through energy bills, and transfer with the property, rather than the person who took out the loan.

“The UK Green Deal allows consumers and businesses to improve the energy efficiency of their buildings without making huge upfront investments,” EU Competition Commissioner Joaquin Almunia said in a statement.

What you need to do

Get an assessment of your property to see what improvements you can make and how much you could save on your energy bills.
Choose a Green Deal provider to carry out the work. You discuss with them what work you want done and whether the Green Deal is right for you.
If you go ahead with the improvements you must sign your Green Deal Plan - this is a contract between you and the provider stating what work will be done and how much it will cost. The provider will then arrange for a Green Deal installer to do the work.
Once the work is done, you’ll pay off the money in installments through your electricity bill.

The EU Commission works as a regulator for the members of the European Union, deciding matters to do with state aid and competition. According to the commission, the program is a well designed effort to improve efficiency in the UK.

For Details of Green Deal See post Green Deal : An Innovative Financing Mechanism for Energy Efficiency Improvements

How to calculate tonnage requirement for an Air conditioner

2013-01-13T01:55:00.000-08:00

how to calculate tonnage requirement for an Air conditioner. All you need to know how much big your room is?

So, just find out your room floor area like (10 ft x 10ft = 100 ft²)

Divide it by 600. So, this gives you basic AC capacity. And you have to add 0.5 ton for every 5 people.

So, its like 100 divided by 600 = 0.167. Add 0.5 ton for 4-5 people living in that room which results as (0.167 + 0.5) = 0.667.

So, for 10ft x 10 ft room, usually a 0.8 ton air conditioner is enough.

Same way you can calculate tonnage require of air conditioner for any room size.

Also to mention, always go for a rotary compressor, your electricity bill would be 15-20% lower and noise would be low and cooling efficiency would be much better.

Window AC Price List and Power Consumption Comparison for 0.75 Ton

2013-01-13T01:35:00.003-08:00

Company	Price (Rs.)	Model No.	Tonnage	Star Rating	EER	Cooling Capacity	Power Consumption
Company	Price (Rs.)	Model No.	Tonnage	Star Rating	(w/w)	(Watts)	(Units/hour)
O’General	18,500	AKGA09AATB	0.75	N.A.	2.63	2498	0.95
LG	18,000	LWA2CR1A	0.75	1	2.49	2489	1
Voltas	15,290	GOLD 2S (4011021)	0.75	2	2.55	2509	0.984
Whirlpool	17,000	WAR09G20DW0	0.8	2		2580	0.95
Carrier		GWRAC009ER001 / GWRAC009EM001	0.75	3		2928	0.96
Godrej	16,990	GWC 10GG 2 WJM	0.75	2	2.52	2505	0.994
Bluestar	16,700	2WAE081YB	0.75	2	2.57	2544	0.99
Haier	13,899	HW-09C2	0.75	2	2.66	2500	0.94

Air Condition (AC) : FAQ

2013-01-13T01:34:00.000-08:00

Q 1: What is 1.0T of refrigeration?

Ans: Amount of heat to be removed from 1.0T (1000 kg) of ice in order to convert it into water, within closed envolepe, in 24 hours, on or at 0 deg C.

Q 2: What is EER?

Ans: EER (Energy Efficiency Ratio) is ratio of air conditioner cooling output compared to the power air conditioner consumes. Hence, higher the EER ratio, you’ll have more savings in electricity savings bills.

Q 3: How to Calculate Air Conditioner Power (Energy) Consumption?

Ans: You can use following steps to calculate power consumption of your air conditioner on basis of Power Input required by it. You can find out this value in technical specifications provided by product manufacturer:

I am assuming 8 hours normal working hours of air conditioner in a day.
Actual working hours of compressor in “Cut-in & Cut-out” condition is 70%. That means 70% of 8 hours = 5.6 hours/day.
Assuming Electricity consumption of a 1.5 Ton 5 Star Rated AC is 1655 watts/hr which means it’ll consume 1.65 Units/hour
Actual Units of electricity consumed per day = (5.6 x 1.65) = 9.24 units
Assuming electricity rate per unit = Rs. 5
Electricity consumed per day in price = (9.24 x 5) = Rs. 46.20
Electricity consumed per month = (Rs. 46.20 x 30) = Rs. 1386/-

Q 4: How to find Right tonnage AC capacity for your room?

Ans: Buying an AC with right tonnage capacity is very important for every consumer. Buying an air conditioner with wrong capacity can lead to higher power (energy) consumption and also cooling loss can happen if you bought an AC lower than the capacity required.

There is a straight thumb rule for choosing capacities as per your room area:

Upto 100 Sq. Feet = 0.75/0.8 Ton

100 – 120 Sq. Feet = 1 Ton

120 – 160 Sq. Feet = 1.5 Ton

160 – 200 Sq. Feet = 2 Ton

Window AC Price List and Power Consumption Comparison for 2 Ton

2013-01-13T01:23:00.001-08:00

Company	Price	Model	Tonnage	Star Rating	EER	Cooling Capacity	Power Consumption
Company	Price	Model	Tonnage	Star Rating	(w/w)	(Watts)	(Units/hour)
O’General	34,000	AXGA24APT / AXGA24ANTB	2		2.6	6650 – 6800	2.8 – 2.9
Hitachi	29,690	RAW222KSD	2	2	2.54	6160	2.425
LG	33,090	LWA6BR1D	2	1	2.44	6350	2.6
Voltas	28,990	SILVER 2S – 2T (4011036)	2	2	2.55	5800	2.274
	29,090	GOLD 2S (4011038)	2	2	2.55	6125	2.402
	29,490	PLATINUM 2S (4011042)	2	2	2.51	6000	2.39
Whirlpool		WAWR24G20	2	2		6500	2.5
Carrier		GWRAC024DM001 / GWRAC024DR001 / GWRAC024X1002 / GWRAC024X2002	2	1		6384	2.545
Bluestar	32,000	1WAE241YA	2	1	2.46	6025	2.45
Hitachi	35,140	RAV322ESD	2	3	2.8	6160	2.2
	36,140	RAT322ESD	2	3	2.75	6160	2.24

Window AC Price List and Power Consumption Comparison for 1.5 Ton

2013-01-12T23:07:00.000-08:00

Company	Price	Model	Star Rating	EER	Cooling Capacity	Power Consumption
Company	Price	Model	Star Rating	(w/w)	(Watts)	(Units/hour)
O’General	24,000	AXGA18ARTH / AXGB18ARTH / AXZA18ABTH / AXGN18TH	N.A.	2.4	5200	2.18
Hitachi	25,140	RAW218KSD	2	2.62	5000	1.91
LG	24,990	LWA5CR1A	1	2.38	4700	1.975
	25,990	LWA5BR2D	2	2.6	5050	1.94
	26,990	LWA5GR2D	2	2.6	5050	1.94
	27,990	LWA5WR2D	2	2.58	5000	1.94
Voltas	22,990	SILVER 2S – 1.5T	2	2.55	4800	1.882
	23,190	GOLD 2S (4011029)	2	2.55	5100	2
	23,990	PLATINUM 2S (4011030)	2	2.51	5150	2.052
Whirlpool	22,900	WAR18B20DW0 / WAWR18B20DW0	2		5190	2.02
Carrier		GWRAC018DM002 / GWRAC018DR002 / GWRAC018X1002 / GWRAC018X2002	2		5125	1.95
Onida	22,740	W18TRC2	2	2.67	5275	1.95
	22,740	W18SPD2	2	2.63	5275	1.975
	23,240	W18TRD2	2	2.67	5275	1.95
Godrej	22,990	GWC 18 GG 2 WJM	2	2.52	4830	1.917
Godrej	23,490	GWC 19G3 WHH	2	2.5	5100	2.04
Lloyd	22,990	FLW18M2	2	2.5	5272	2
Videocon	22,000	VW5P2.WE1	2	2.58	5000	1.94
Bluestar	23,700	2WAE181YA	2	2.55	4765	1.87
Haier	19,099	HW-18L2V	2	2.59	5050	1.95
Haier	19,450	HW-18L2H	2	2.59	5050	1.95
Hitachi	26,940	RAW318KSD	3	2.80	5000	1.785
LG	27,990	LWA5BR3D	3	2.81	5050	1.8
	28,990	LWA5GR3D	3	2.81	5050	1.8
	29,990	LWA5WR3D	3	2.81	5050	1.8
Voltas	25,590	SILVER 3S (4011034)	3	2.71	4950	1.826
Voltas	26,190	PLATINUM 3S (4010970)	3	2.75	5050	1.836
Whirlpool	23,990	WAR18G30RW0	3		5190	1.8
Carrier		GWRAC018ER001	3		5476	1.861
Onida	24,490	W18SPD3	3	2.81	5275	1.85
Onida	24,490	W18TRC3	3	2.85	5275	1.825
Bluestar	24,830	3WAE181YB	3	2.73	4935	1.81
Haier	21,899	HW-18L3H	3	2.78	5150	1.85
Hitachi	30,900	RAV418ESD	4	3.09	5120	1.55
	32,640	RAV518ESD	5	3.30	5120	1.655
	34,140	RAT518ESD	5	3.15	5200	1.625
LG	33,990	LWA5PR5D	5	3.11	4870	1.566
Voltas	30,000	PLATINUM 5S (4011039)	5	3.11	5000	1.607
Godrej	28,990	GWC 18 GU 4 WLH	4	2.90	5000	1.724
Bluestar	31,300	4WAE181YA	4	2.93	4950	1..69

Window AC Price List and Power Consumption Comparison for 1 Ton

2013-01-12T22:35:00.000-08:00

Company	Price	Model	Tonnage	Star Rating	EER	Cooling Capacity	Power Consumption
Company	Price	Model	Tonnage	Star Rating	(w/w)	(Watts)	(Units/hour)
O’General	18,500	AMGA13AATB	1	N.A.	2.63	3514	1.35
LG	21,990	LWA3BR1D / LWA3CR1A	1	1	2.49	3370	1.35
LG	22,990	LWA3BR2D / LWA3GR2D	1	2	2.63	3370	1.28
Voltas	18,590	Gold 2S (4011024)	1	2	2.55	3370	1.314
Whirlpool	18,500	WAWR12G20 / WAWR12G28D0	1	2		3400	1.25
Onida	18,500	W12TRD2	1	2	2.63	3516	1.33
Godrej	19,190	GWC 14 G2 WHH	1	2	2.6	3425	1.317
Lloyd	16,540	W12TRD2	1	1		3514	1.465
Bluestar	16,880	2WAE121YA	1	2	2.57	3475	1.38
Haier	16,650	HW-12C1	1	1	2.35	3100	1.32
Hitachi	23,440	RAW312KSD	1.1	3	3.26	3747	1.34
LG	23,990	LWA3BR3D1 / LWA3GR3D	1	3	2.76	3370	1.22
Voltas	20,690	Platinum 3S (4011026)	1	3	2.75	3340	1.236
Whirlpool	19,990	WAR12G30RW0	1	3
Carrier		GWRAC012ER002 / GWRAC012EM002	1	3		3690	1.28
Onida	19,490	W12TRC3	1	3	2.89	3516	1.21
	19,490	W12SPD3	1	3	2.86	3516	1.225
Godrej	20,490	GWC 12 GH 3 WJM	1	3	2.72	3341	1.228
Bluestar		3WAE121YA	1	3	2.72	3450	1.27
Hitachi	28,640	RAT513ESD	1.1	5	3.15	3898	1.24
	27,640	RAV513ESD	1.1	5	3.25	3998	1.23
	24,940	RAW511KSD	1	5	3.26	3222	0.99
LG	27,990	LWA3PR5D	1	5	3.20	3550	1.11

Energy-efficient home with exquisite details

2012-12-24T21:27:00.004-08:00

This 8,891 square-foot Brickland Estate home sits in an exclusive gated community and offers energy efficiency with its own 36 KW home generator that cools and heats through the house.

Located in the Village at Northgate Forest, this 8,891 square-foot Brickland Estate home sits in an exclusive gated community and offers energy efficiency with its own 36 KW home generator that cools and heats through the house.
The kitchen area is primed for chef's work with professional Viking appliances that include gas stove, pot filler, refrigerator with full size upright freezer, three ovens and two drawer dishwashers.

The home is also compatible with current technology with an installed wireless system, three phone lines and a complete home computer control system that operates the lights, fireplace, security and music. Full guest quarters are equipped with living room, bedroom, kitchen bath with walk-in shower and professional hydro therapy tub.

Upon entering through the arch front glass doors and iron spiral-curved staircase, the open floor plan comfortably holds the living and dining areas that lead to the wide veranda space.
The outer grounds include a summer kitchen with gas grille with rotisserie and infrared cooking system, two-burner cooktop, built-in sink and refrigerator. Other amenities include an indoor self-cleaning pool, exercise room and elevator.

Address: 16502 Glorietta Turn, Houston
Asking price: $2.39 million
Beds: 5
Baths: 6
Listing Agent: Linda Beck, Better Homes and Gardens Real Estate Gary Greene

Energy Efficiency

Play and learn to save energy

Energy Saving Tips fpr Air Conditoners

Use ceiling or table fan as first line of defence against summer heat, as running cost of using an AC could be 25 times or more than that of a ceiling fan.

Keep windows and doors of air-conditioned rooms closed as often as possible.

Remove obstructions (e.g., furniture, piled books, etc.) to air passage to the unit. AC operates most efficiently when intake and discharge airflows are free from nearby obstacles.

Consider using an interior ceiling fan in conjunction with your AC to spread the cooled air more effectively within the room. Using fan allows you to set the thermostat temperature higher and thus reduces the energy consumption.

Do not set your thermostat at a colder setting than normally needed when you turn on your air conditioner; it does not cool your room any faster and could result in excessive cooling and unnecessary expense.

Do not place lamps, televisions or other electric appliances near AC. As these appliances generate heat, and the thermostat senses heat from these appliances causing the air conditioner to run longer than necessary.

Plant trees and shrubs to keep the day’s hottest sun off your house, wherever possible. This will reduce energy consumption in AC.

Clean outdoor coils when they become dusty. Efficiency of AC degrades in dusty conditions, and especially when layers of dirt and mud are evident.

Make sure upon installation and routine maintenance that the unit is well-sealed from the outdoors.

Give the annual maintenance contract of AC directly to the manufacturer or its authorized