Category Archives: Electrical Energy

Electrical Energy is also a subcategory of Natural resources, regardless the way it is generated. It could be generated by using fossile fuels, solar-, wind- or tidal power etc.

Electrical Energy Saving – Cont.1

EES_Header

Electrical Energy Saving

 Without spending a dime

To start with, I will go in detail about the option1 to start Electrical Energy Savingwithout any expenses extra.

  • Switch off lights which are not necessary, without loosing safe moving through your spaces.
  • Open the door of the fridge/freezer, only to get the stuff out, which you are going to use and close it immediately. Opening the door of the fridge will switch on the light inside, which normally uses some 45 watt of power.  Through the open door cold air escapes, which will have to be replaced, according to the thermostat setting. Think ahead of what you will need to get out of the fridge and do that in the shortest time possible. It helps if the content of the fridge/freezer is well organized.
  • Do a simple test to see if the seal of the door is in good condition. Place a sheet of paper on the body of the fridge, close the door and try to pull the paper out. D this test on all four sides. If you can pull the paper out easily, you have a leak and eventually need to change the seal.
  • Do not put uncovered liquids in the refrigerator. They fridge will work harder (use more energy), to remove the moisture.
  • Keep refrigerators full without inhibiting the air circulation
  • Avoid placing the fridge/freezer in a location with direct sunlight or near other heat producing appliances.
  • The laundry washer should be used in an efficient way. Avoid small washes. relative much more water and energy is used per weight of cloth.
  • If you live in a dry and/or windy place, consider doing away your drier.
  • Keep heat-producing appliances such as lamps and televisions away from the thermostat of the central air conditioner.
  • Shade the outside component of window air-conditioning if it is in full sunlight
  • Set the thermostat on the highest setting to still feeling comfortable,, even if you have to wear an extra vest.
  • Clean the filters and coils of the air conditioner, regularly.
  • Unplug equipment with standby mode when not in use. Depending on the total number of this type of appliances, you might save up to 14 % on energy.
  • Air dry dishes instead of using the dishwasher’s dryer cycle.

These were some of the most important ways to save energy without spending money. In the next option, I will write about how to save with usually less than a 100 dollar in investment.

WARNING!!! Finally a warning. Do not use an Ampere Meter to measure the consumption of your appliances. Do not buy into that. The differences in the Amps does not necessarily mean your KWh consumption goes down or up as well. This might work for a non inductive appliance such as a simple heater, but sure not for an inductive motor such as a compressor, washing machine, electric pump etc. The only real proof of energy saving is, if you use the readings of a KWh Meter.

The Electric Company is charging you for the KWh used to start with. The formula to calculate KWh is Volt X Amperes X Power Factor X hours used ( for split phase and three phase appliances even another component is added to this formula. A simple heater or incandescent bulb will generally show a power factor of 1.0,  Induction motors have power factors often as low .50 and if the efficiency is improved at full load this may creep up to the .80 or even the .90 mark. There are devices to improve the power factor, but they too consume a part of the energy and not necessarily reduce the consumption of electricity at all stages of the duty cycle of the applianc

  1. Electrical Energy Saving without spending a dime.
  2. Electrical Energy Saving with small investments, under a 100 dollar.
  3. Electrical Energy Saving with an investment upfront.

My articles:

To visit my other blogs:

Electrical Energy Saving – Cont.3

EES_Header

Electrical Energy Saving

With a major investment. 

 Now finally option 3, Electrical Energy Saving with a major investment, in special equipment. Test all seals in the house or office space. Service people do have a meter to test for leakages.

1. Use Voltage Regulators.

It would be advisable to install a Voltage Regulator for the entire house or office if the fluctuations in Voltage are more than ±5%. You house needs some voltage optimization, which means match the voltage with that of your appliances.

In general electric motors can withstand fluctuations of ±10%, while the electronic components can in general cope with fluctuations of ±5%.

The verbs cope with and withstand are relative though, lower voltage normally causes higher temperatures, due to rise in current to compensate the demand and higher voltage cause higher consumption and malfunctions due to higher vibrations, failures of switches, overload protectors and electronic components and ultimately also higher temperatures.

On the long run, both situations result in premature failure of the equipment and appliances. But for home owners, they can consider economics and install smaller voltage regulators for their electronic equipment and hope the best for their electrical equipment, unless obvious premature failures are evident.<style=”font-weight: 400″=””>

A regulator will cost about the same as two years of savings, so look at your situation. I all cases sudden loss of equipment may play a role in your decision

2. Generate your own power.

In this case consider using renewable energy. Depending on your location on the globe and or facilities from your local Utility Company or climate conditions, you can select wind or solar power to provide part or all of your regular demand of power.

A popular set up is generating a certain amount of power according to your total demand, without the use of storage or deep cycle batteries. Needed are series of photo voltaic cells up to the capacity you choose. A system in capacities of 150 W up to 20 kW are readily available and cost some US$1.00 per Watt delivered to your location and consists of matching series of panels, a controller, an inverter and cables to interconnect. An intersting development came up at the end of 2012 is the black cells, which reflect less sunlight and have much higher efficiencies of over de 40%.

Now comes the interesting part. Some plans can be adopted:

  • Make a contract with the local Utility Company to arrange retro alimentation, by hooking up to the grid. All the power you produce in excess of your own demand in kWh will then go to the grid. All you need extra is a bidirectional meter and some special switching gear, which sums in the direction of your place and subtracts in the direction of the public grid.
  • In 6 states in the USA You can ask the local Utility Company to evaluate your roof and allow them to install the maximum amount of panels, the roof supports. You will get delivered power at a reduced rate, but avoid the investment. In the UK this is done by some private companies. This is a great way if you do not afford the investment
  • In the case of wind power, investigate first what the noise level of the turbines is. Also check the support of your roof or install a tower from off the ground at higher cost. This option is more reserved for those living away from densely populated areas.
  • Install panels with a corresponding set of special batteries to store all the power you don’t immediately need. The panels deliver 12 Volts and charge the batteries. For use in the house the inverter transforms this 12 Volt to whatever Volts you need in the house.

With the ever falling prices of these options the viability is coming ever closer to our possibilities, with a resulting savings of electrical energy. The systems are normally guaranteed for 25 years.

Figure an average two to three years for return of investment, depending of your prevailing energy cost. The rest of the time you enjoy free and clean energy.

Many governments are providing incentives. Ask what the possibilities are in your area. Germany is still the champion in going solar

3. Buy appliances with the special seal.

Watts UP_ProsmallIn many countries, a special agency, foundation, institute or so, manages the energy savings projects for the government, similar to Energy Star for the Department of Energy in the USA or Carbon Trust in the UK

Many of this organizations are conducting studies to compare energy consumption of appliances and other equipment. The most efficient appliances in their class are getting a special seal, to assist the buyers in their choice at the time of their purchase.

Instead of an electric dryer preferably purchase one running on natural gas or even better on solar energy.

Monitor the consumption of your appliances for a couple of days or a week. There are good plug-in meters, you can order online, for 115 and 220 Volt systems.

4. Illumination

Change all the incandescent lamps for energy savings lamps, such as compactfluorescent lamps (CFL) or even better, lamps with the new solid state technology with Light Emitting Diodes (LEDs)

Although the latter are still more expensive, prices are coming down with major advantages over the CFLs.

  • They do not contaminate.
  • They in general are not susceptible to frequent on and off switching.
  • They have a substantial longer service life up to 50,000 hrs.
  • They have already better luminous efficiencies (lumen per Watt)
  • At the end of their life cycle they do not need to be handled as toxic waste.

Note: A new compact lamp came on the market lately, which do not contain Mercury, see a description of this product

5. Purchase a good meter.

Itron_CentronMost of the electrical meters of the Utility Company are difficult to read for non technical people. Buy a meter of around $200.00 with an LCD screen to monitor your circuits in the house. There are really good meters which display the major parameters such as Volts, Amperes, Watts, kWh and Powerfactor.

With this you can immediately detect major anomalies in you circuits.  Leakage to the ground, for instance, may have a big impact on your bill at the end of the period as the energy runs straight into the ground

Never ever use the water circuit as a ground connection. Worst case scenario may be someone electrocuted using the water outlet, if such a ground leak occurs.

These were some of the most important ways to Electrical Energy Saving with a variable investment strategy. We would appreciate your comments. For questions please contact us via the form on the Home Page

For more information: Go to Solar Power Panels

Consider following the Guiding Principles for buildings of the Department of Energy in the US.

We would appreciate your comments. For questions please contact us.

WARNING!!! See the Warning in Option1

  1. Electrical Energy Saving without spending a dime.
  2. Electrical Energy Saving with small investments, under a 100 dollar.
  3. Electrical Energy Saving with an investment upfront.

My articles:

To visit my other blogs:

Electrical Energy Saving – Cont.2

EES_Header

Electrical Energy Saving

With a small investment under a $100.00

Now we will write about option 2, Electrical Energy Saving with a small investment, usually no more than $100.00.

  • In places like bathrooms and rooms occupied normally by one person and very prolonged lapses without  any body in the room, a simple sensor can be installed, say some three minutes after the occupant leaves, will switch off and  switch on instantaneously if some body enters.
  • Replace the door seal of the refrigerator, if it doesn’t with stand the test as explained in Electrical Energy Saving option one.
  • Replace CRT screens and old type TV’s with flat screens. Replace old laundry machines, fridges etc. with more efficient models. Frequently the energy company will  provide soft loans to help with these replacements. Ask if this is the case in your area.
  • Paint walls opposite windows in a lighter color, to reflect more light deeper in the room.
  • Install 50 cm wide reflective panels 50 cm below the top and across the windows to reflect more daylight in the rooms. Check out what the right angle should be according to the path of the sun, specific for your location.
  • Buy and use covered ice trays in the freezer. For the same reason, do not leave uncovered liquids in freezer or fridge as this will use more energy to get rid of the moisture.
  • weekly_digital_timerUse a simple weekly timer  to switch off the fridge/freezer during the night hours after the last person retires up to an hour before the first person wakes up. In the few hours lots of energy is saved and the fridge/freezer stays cool as nobody opens the doors.
  • Install windows with double glass and adequate sealing to avoid loss of cold, c.q. warm air. Seal all doors. Use small ventilators to keep the air inside ventilated and spread evenly.
  • If you live in a dry and/or windy place, consider doing away your drier or build a simple solar drying cabinet with plastic sheeting or the more sophisticated panel seen in the following YOU TUBE film,
  • Keep heat-producing appliances such as lamps and televisions away from the thermostat of the central air conditioner.
  • Shade the outside component of window air-conditioning if it is in full sunlight
  • Set the thermostat on the highest setting to still feeling comfortable,, even if you have to wear an extra vest.
  • Replace filters of the air conditioner, according to the maintenance guide..
  • Use a timer to switch off equipment with standby mode when not in use. Depending on the total number of this type of appliances, you might save up to 14 % on energy. Determine switch off times according to normal use.
  • Air dry dishes instead of using the dishwasher’s dryer cycle, placing them in a draft between two windows
  • KillAWattsmallPurchase a small plug-in meter for less than $40.00 to measure the consumption of your major appliances at various operating conditions, e.g. the washing machine with various loads. If you cannot measure, you cannot control and if you cannot control you can not improve.
  • receptacle testerPurchase a Receptacle Tester for few dollars, to detect faulty wiring. A leak to ground may cost you dearly. Never ever connect the ground to a waterline as this may in the worst case cause an electrocution.

 

These were some of the most important ways to Electrical Energy Saving with a small investment upfront. In the next topic I will write about how to save big with a major investment.

We would appreciate your comments. For questions please contact us

WARNING!!! See the Warning in Option1

  1. Electrical Energy Saving without spending a dime.
  2. Electrical Energy Saving with small investments, under a 100 dollar.
  3. Electrical Energy Saving, with an investment upfront.

 My articles:

To visit my other blogs:

Electrical Energy Saving – Introduction

EES_Header

Electrical Energy Saving

Introduction

Electrical Energy Saving is also placed within the category Saving Natural Resources, no matter how generated, although the generation using fossil fuel is predominant .

Electrical Energy Saving is a rather complex subject with many facets and can be split up in many ways. One logical way, in my opinion, is splitting this up in the following three options:

  1. Electrical Energy Saving without spending a dime.
  2. Electrical Energy Saving with small investments, under a 100 dollar.
  3. Electrical Energy Saving with an investment upfront.

My articles:

To visit my other blogs:

hor_div