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Advanced Metering Infrastructure (AMI) and Automated Meter Reading (AMR): A Deep Dive

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Advanced Metering Infrastructure (AMI), Automated Meter Reading (AMR)

Introduction

In the realm of utility management, two technologies have revolutionized the way we monitor and control energy usage: Advanced Metering Infrastructure (AMI) and Automated Meter Reading (AMR). These systems have transformed traditional meter reading methods, paving the way for more efficient and accurate data collection.

Understanding AMI and AMR

Automated Meter Reading (AMR) is a technology that automates the process of collecting consumption data from energy metering devices. It eliminates the need for manual meter readings, reducing human error and increasing efficiency.

On the other hand, Advanced Metering Infrastructure (AMI) is a more comprehensive system. It not only automates data collection but also enables two-way communication between the meter and the central system. This allows for real-time monitoring, remote control, and a host of other advanced features.

The Technology Behind AMI and AMR

AMR systems primarily use drive-by or walk-by technologies. A utility worker with a handheld device can collect data from multiple meters without needing to access each one physically. Some AMR systems also use fixed networks for data transmission, using technologies like radio frequency (RF), power line communication (PLC), or telephony.

AMI systems, being more advanced, use a variety of communication technologies, including RF, PLC, cellular, and broadband. The choice of technology depends on factors like the utility’s requirements, the geographical area, and the existing infrastructure.

Benefits of AMI and AMR

Implementing AMI and AMR systems brings numerous benefits:

  1. Efficiency: Automated data collection reduces the time and resources required for manual meter reading.
  2. Accuracy: Automation eliminates human errors associated with manual readings.
  3. Real-time Data: AMI systems provide real-time consumption data, enabling better energy management.
  4. Customer Service: With accurate and timely data, utilities can offer improved services to customers, like detailed consumption reports and quicker response to queries.

Challenges and Real-World Applications

Despite the benefits, implementing AMI and AMR is not without challenges. These include the high initial investment, the need for skilled personnel to manage the systems, and concerns about data security and privacy.

However, many utilities worldwide have successfully implemented these systems. For instance, in Europe, AMI adoption has been driven by EU mandates requiring member states to equip 80% of consumers with smart meters by 2020. In the U.S., the 2009 Smart Grid Investment Grant program accelerated AMI deployment.

Conclusion

As we move towards a more connected and data-driven world, technologies like AMI and AMR will play a crucial role in energy management. Despite the challenges, their benefits in terms of efficiency, accuracy, and improved customer service make them a worthwhile investment for utilities worldwide. As these technologies continue to evolve, we can expect even more innovative solutions in the future.

Portable Generators – All Your Neighbors Will be Jealous as they Sit in the Dark

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Portable generators are becoming a very popular way to keep the power on. There are many things that can knock the power out. The biggest being storms. Whether they are ice storms, thunderstorms or just plain windstorms, a power outage can be a major inconvenience. So what do you do? You go shopping for a portable generator. But, with all of the choices available where do you start? How many watts do you need? Do you need 120v or 240v? How do you connect it to your house?  Read on as we tackle these questions.

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When Shopping for Portable Generators, where do you Start?

If you are keen on making your neighbors jealous when their power is out and yours is not, you need to start shopping and buy your portable generator before the storm. So, that is the first place to start. Make sure that you are not waiting on the natural disaster to begin shopping. Prices can be higher during a natural disaster and supplies may be limited.

You can do your shopping at many of the big box hardware stores or even online at sites like Amazon. There are several things that you need to consider when buying a portable generator. The biggest two are watts and voltage. When looking at these quantities you need to first decide what it is that you want to power when the power is out. Which leads us to our next point.

How many Watts do you Need?

To decide how many watts your portable generator needs to put out you first need to decide what you want to power. Do you want just lights so you can see at night? Does your refrigerator need to have power so your food does not spoil? Do you want to have heat? These are all considerations to take into account when deciding how many watts you need. All of your appliances have wattage ratings. So, decide what you want to power and then go and check the ratings of each appliance.

After you have checked the wattage ratings of your appliances add them up. This will give you the amount of wattage that your generator needs to put out. A word of caution here. Most people want to power their entire homes with a portable generator. While there are some models that are capable of doing this for smaller homes, that is not their intention. The intention is to run critical loads or essential loads. These are the loads that are most essential. If you live in a very cold climate your heating system may be a critical load. Most people choose their refrigerator and a few sets of lights as critical loads.








Should you buy a 120v or 240v Portable Generator?

The answer here depends on what you have chosen as your critical loads. If they are all 120v, such as lights and the refrigerator, then a 120v generator will work just fine. If you are wanting to power your heating system, water heater, or stove then you should consider a 240v generator. Some well pumps are also 240v. So, if you need to power a well pump you need to check the voltage of it as well.

How do you connect your Portable Generator to your House?

Connecting portable generators to your house is a job for a licensed electrician. They will install a transfer switch along with new breakers for the essential loads that you choose. This ensures that when the power does go out and you use your generator that no power will be put back on the grid. Keeping your generator power separated from grid power keeps the lineman safe.

Do not just fashion a drop cord with two ends that plug in and plug it into the wall. First of all this is illegal. Second, you can put power back on the grid this way and cause serious injury or death to someone working on the power lines. Also, if you do this you will try to run your whole house off of it. The extension cord is not rated for this and neither is the receptacle that you have it plugged into. You can burn your house down doing this.

This should be a no brainer, but make sure your portable generator is outside when using it. The exhaust from the generator can be deadly.

Conclusion

Portable generators can be a great addition to your home. They can keep the lights on and make your neighbors jealous. They can also be used to make sure that your food does not spoil during a storm. Make sure that when you are deciding what you want to power that you add up the wattage of each appliance. Then decide if you need a 120v or a 240v generator. Finally, once you have made your purchase, contact a licensed electrician to get everything installed in a safe and professional way.









 

Computers and the Meter Tech

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As a meter tech a computer will be very useful in your job. Many tasks in the metering world are not possible without the use of a computer. Because of the this meter techs will need to know how to use different programs. They will also need to know how to analyze data.

Programming meters as a meter tech is an easy streamlined process. Many of the meter manufacturers have easy to use programming software. Once the program is built all you need to do is connect the probe to the meter. Then click the program and go through the prompt. Building the program can be tricky for those who do not know their way around a computer. If you need to change variables you need to know what the changes will do in the program.

Outside of programming meters, meter techs will need to be able to use Microsoft Word and Excel. Word is not used as much as Excel but is good to know. Many tasks can be completed with Excel. However, it will mostly be used to view data. At times data will also be exported to Excel. At other times data will need to be calculated in Excel. You can also use Excel as a small database for things such as test sites, or new installations. Meter techs also use Excel to view .CSV files and bill details.








One of the most important uses of the computer to the meter tech is billing system. Here the meter tech will look up the details of customer bills when talking to customers about their high bill complaints. It is important to know how to use this system and use it effectively. There are typically historical comments where other techs may have gone out before you. Also, you may find out that this is a problem customer. If that is the case you will know that you need to be on your game. This means meeting the customer with all of the facts.

In the billing system, meter techs will also assign multipliers to meters. This is very important. An incorrect multiplier in the billing system is one of the easiest mistakes to make. Especially if you have just completed a new installation. Billing systems are typically good at kicking out readings that appear to high or too low. And if a meter was just changed and the incorrect multiplier for that particular meter was put in the system it will generally get kicked out. However, with at new installation the computer has no history of that location to go on. Noticing this error could take years. Furthermore, this could be in the customer’s favor or in the favor of the utility.

In conclusion, being a meter tech is more that just going out in the field and swapping out meters. You need to have a good grasp on technology. Computers are essential to meter techs. The sooner you can master at least the basics the better.









PPE in Metering

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When it comes to working with meters as a meter tech you always have to remember that there will be times that you are working around energized equipment. And because of this you need to make sure that you protect yourself in the case of an accident. In order to protect yourself you need to make sure that you are always wearing your PPE. What is PPE you may ask? PPE stands for personal protective equipment. It is safety equipment that is designed to make sure that in case of an accident or in case of incidental contact with live conductors that we are not injured or even worse, killed. What I am going to detail here are the minimum requirements for a meter tech. Also listed are a few things that may not be required by your utility but are good idea. Be reminded however that these are minimums and that you should always wear the minimum that is required by your company.

Minimum

Hard Hat

A hard hat is first on our list. The hard hat is generally made of a hard plastic material that has a webbed support system inside. The support system inside ensures that the hard hat is a cool as possible as well as provide a bit of a crush zone should something heavy fall. Your hard hat protects you from falling objects, but that is not all. The hard hat can also keep you from hitting your head if you are in an area with a low ceiling or if you are working in an enclosure or transformer it can keep you from hitting your head or having accidental contact with conductors. Another thing that a hard hat protects you from is the sun.

Your hard hat also keeps the sun off of your shiny head and keeps you from getting sun burned. Be sure that you inspect your hard hat on a regular basis for any cracks or sun damage. In addition, if you suspect any damage it is best to go ahead and replace your hard hat. It is easier to replace your hard hat than your head!

Safety Glasses

Safety glasses are essential as a part of your PPE arsenal. They protect your eyes from flying objects! Safety glasses also seem to be one of the most neglected pieces of PPE. People think that they just do not need them, especially if they are working at night. It is imperative that you wear your safety glasses to protect your eyes. There are even models now that are designed as sun glasses so that you look more stylish. Safety glasses do have ratings so make sure that you check with your company policy before wearing a pair of sunglasses to work.

Rubber Gloves

Rubber gloves are essential if you are going to be working on or near anything energized. I know that many of the old timers used to work secondary with just leather gloves. I also know that there are those of you out there that think there is nothing wrong with changing meters or checking voltage with just your bare hands. Yes you make get away with it a few times, or you may never even have a problem. However, it only takes one time for electricity to kill your or to burn off a finger. Make sure that you are testing your rubber gloves before each use. Also, make sure that you know the rating of your rubber gloves. Many meter techs will have two different sets of rubber gloves. They may have a low voltage set that are rated for 1000v and they may have a high voltage set. The high voltage set will vary based on the primary that your utility uses. Do not try to use your secondary gloves on primary! They are not rated for that voltage and you will be hurt or killed! For this reason, many utilities do not give their lineman secondary gloves. The rubber gloves will have leather protectors with them. Always use them. And also do not forget to check your protectors for holes either.








Clothes

This will vary from utility to utility because of the different arc flash ratings. Make sure you are wearing whatever your utility mandates. This will keep you safe in the event of a flash. In addition, most utilities now require flame retardant clothing. Do not wear any jewelry or watches or even metal belt buckles. In the event of an electrocution these items will act as heat sinks and burn your skin.

Safety Toe Shoes

Shoes with a safety toe will keep falling objects from crushing your toes. Make sure also that your shoes, or boots, are rated for electrical hazards. This will ensure that they are not building up static electricity as you walk.

Recommended

Face Shields

Face shields are one of the controversial pieces of safety equipment right now. Some people hate them, mainly the people wearing them, and some love them, mainly management. If your utility requires face shields, wear them. If your utility does not require face shields but provides them, use them when you think they may be necessary. Face shields can protect you in the event of a flash.

Rubber Sleeves

Rubber sleeves are something that you typically see lineman wearing working out of a bucket. But, they have their place in the metering world as well. If you are working in an enclosure such as a transformer it can be a good idea to use rubber sleeves to protect you in case of accidental contact.

Summary

PPE is important to you as a meter tech. Do not take it for granted. However, do not think that just because you are wearing all of the PPE your utility provides that you are working safely. There is no substitute for knowledge when it comes to safety. Learn the best practices for working safely from those around you. Just because you are wearing rubber gloves does not mean that you need to just go around touching all of the live conductors just be cause you can. Be cautious. Be safe. If it will be safer to turn something off to work on it, then plan an outage. And remember however, that safety is up to you not your company. You are the one who will go home to your family everyday not your company. Also remember that the list I provided above is just a basic list. Do what your company says. If I have left anything out let me know. Work at your own risk. I take no responsibility if you get hurt.








The Meter Technician Profession

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So you are thinking about getting into a career in the electric utility industry and you are not really sure what you want to do. There are several career paths that you could choose. A few are power lineman, or engineer, or even maintenance mechanic. What I want to persuade you to do is to think about becoming an electric meter technician.

The electric meter technician is possibly a job that you have never even heard of. In addition, you may have never given any thought to becoming one. So what does and electric meter technician do?

Well, contrary to popular belief, we do more than just read watthour meters. We are not just “meter maids” as some lineman would have you think. Electric meter technicians do read electric watthour meters. But we meter techs also do much more than that.

To be an electric meter technician one should have, or be able to develop, a strong electrical background. Furthermore, you will want to have graduated high school. In addition, if possible, have taken some college courses in electrical theory. It would be even better if you could get an associate’s degree in electrical technology. This education will be helpful in understanding how watthour meters work. It will also help in understanding how the entire electric utility works as a whole.

Electric meter technicians test watthour electric meters either in the shop with test equipment or in the field with watthour meter test equipment. They also check residential, commercial and industrial metering installations for proper wiring and metering accuracy. There are meter techs who specialize in some of these areas. Some meter technicians only deal with residential metering installations and customers. Others deal only with commercial and industrial customers. While others may only stay in the shop and test watthour meters.

The ideal electric meter technician will be able to work outside all day. Outside the meter tech will do things such as change out electric meters, check on high bill complaints, low consumption or stopped meter orders. Meter techs will also work outside installing new metering equipment on instrument rated metering applications.

The electric meter technician will also be called upon to explain billing to customers.







Many times customers do not understand their bill and the meter technician is usually the last person the customer will talk to. The customer has normally already called in and talked to someone on the phone. They were not satisfied over the phone and now want to talk with someone in person. The meter technician is that someone. Because of this the meter tech will need to have strong interpersonal skills to be able to answer the customer’s questions. In addition they will also need to be as professional as possible. You do not want to go out a customer’s residence or business dressed like a slob. That ruins your credibility right away.

Electric meter technicians will also need to be able to perform above basic tasks on the computer. Part of the job requires the meter tech to be able to program watthour meters, download information from the meters, create new programs for the meters as well as run reports out of the billing system to find out if there are any errors. You will need to have an eye for detail. Many times you will be looking for something that stands out as unusual. Being able to determine from that information if there is a problem that needs to be checked and repaired is crucial.

An ability to do algebra also comes in handy as well. Electric meter technicians also use many formulas to complete their work. If current transformers and potential transformers need to be installed you will need to know how to calculate the multiplier. Also, you will need to know how to size the current transformers to the service to be metered. Another thing that you will need to be able to do is calculate and electric bill with demand. Many times customers will not understand demand. So it will be up to you to explain it to them in a way they can understand. There will be times that you will need to explain the math to the customer so that they understand what is going on.

Being a meter technician is a highly rewarding career. Notice that I said career and not job. The electric meter technician is a specialized field and most who are in the field work until retirement. Which also means that there are not a ton of jobs available. So when you get one, keep it! Also worth noting is that it will typically take between 5-7 years to become fully proficient as a meter tech. But even then you will constantly be learning new technology.

So, with that I hope that you give the electric meter technician career a chance.








5 tips to saving energy when on vacation

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So you are ready to go on a long vacation and you are worried about your electric bill being high when you get back and you want to know if there is anything you can do to keep you bill low when you get back. Well, there are a few things that you can do to ensure that your electric bill is not through the roof. Most of these tips even work well if you are only going out of town for the weekend as well.

1. Turn off the water heater.

That’s right. An electric water heater is one of the largest consumers of electricity in your home next to the A/C. For a normal family, a water heater can account for as much as 25% of the electricity that is consumed in your home. To put it another way, they can easily uses 300 kwh per month which can equal $30 or more. Let’s understand why we would want to turn off our water heaters while we are out of town. The water heater has a thermostat inside just like the A/C does. What that means is the water heater will be keeping the water at that temperature regardless of whether you are in your home or you are one vacation. One argument that I always hear from people is that they want to be able to take a shower as soon as they get home from vacation and they do not want to be waiting on the water to get hot. Well, let me put your mind at ease. Most water heaters have about a 30 minute recovery. This means that it takes the water heater about 30 minutes to be full of hot water again. So, walk in from you vacation, turn the water heater back on and then unload your car and get ready to take your shower. By this time the water should be nice and hot for you to take a shower. The next question is, “how do I turn it off?” The most convenient way is in the breaker box. Find the breaker labeled as water heater and turn it off. Alternatively, there should be a disconnect at the water heater. You can pull this disconnect and this will turn off the water heater as well. I would only use the second method if you are comfortable dealing with electricity because it could be dangerous.

I want to note that I would not turn the water heater off if you live in a climate that freezes and it is the winter time when you will be gone. This is only recommended during the times when temperatures are above freezing.

2. Turn off the A/C

The A/C is the largest consumer of electricity in the home and because of this, you do not want to overlook it when you leave for vacation. Now, if you are hardcore, depending on the time of year, you will just turn off the A/C when you leave for vacation and turn it back on when you come home. But, if it is in the middle of summer you may want to ensure that the house is not an oven when you get back. My recommendation is to turn the thermostat up to at the very least 80 degrees in the summer time when you leave, higher if you think you can stand it. If you are going on  vacation in the winter time you will want to turn the thermostat down to at least 60 degrees. This will ensure that your A/C or heat are not running constantly while you are gone trying to keep your couch comfortable.







3. Unplug, unplug, unplug!

In this day in age when you turn your lights off at night you can just about still see everything because of all the lights from your devices that are still on. The lights may be from computers, television, gaming systems, microwaves, etc. Whatever the lights are coming from, they are drawing electricity to be kept on. Unplugging things that are not necessary to be on while you are gone, such as your wireless router (if you have networked security cameras you may need to leave that on). All of these little things do not use very much on their own but collectively they do add to your bill. Remember that nothing is free!

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4. Turn off lights

This sounds like a no-brainer but many people forget to turn their lights off when they leave. Often times they will get home from vacation only to discover that they light in their bedroom or bathroom had been left on. Do a once over before you walk out the door and make sure that the lights are off. If you are going to leave a light on for security reasons, look at getting a timer so that it does not run all the time. Or, put in an LED bulb in that particular light fixture.

5. Turn off the water

I know this does not appear to have anything to do with electricity but if something happens while you are gone, such as a busted water line or a leaking toilet, you will be in for a big water bill. If the water line breaks and it is a hot water line and you have forgotten to turn off the water heater, it will constantly run trying to heat the water. This, again, is only recommended during warmer temperatures.

6. Bonus!

If you are hardcore like me and you do not care if you have to reset your clocks when you get back then this tip is for you. When I go out of town on vacation, as long as it is not a time where we are having freezing temperatures, I just go and turn off my main breaker. If your main breaker is off, your electric meter will not turn while you are gone. This is how my power bills during the summer when I have been on vacation have been as low as $40 when the base charge takes up $20 of that $40.

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Five ways to Cool your house without A/C

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During the summer time many people struggle with high power bills because their A/C runs constantly. Here I want to offer five ways to cool your house without using your A/C.

1. Use blinds

One of the most effective ways we can cool our homes without using A/C is by not letting any sunlight into our home to begin with. Heat is transferred three ways. It is transferred by conduction, which is when you touch something, convection, which is when heat is transferred by air (think convection oven), and by radiation. So, think about when you are cold and your go out and stand in the sun to warm up. This is radiation and this is what we are trying to stop by closing our blinds. If we can stop the sunlight from entering our homes then we do not have to cool them back down. Try to use blinds that do not allow any sunlight to come into your home when they are closed. This is the first way that we can combat the heat and keep our homes cool without using A/C.

2. Use curtains

This is basically the same as number one above except that curtains, when used in conjunction with blinds can make a huge difference in blocking the sunlight that enters your home. And, the thicker they are the better. Think about taking a blanket outside and blocking sunlight versus a sheet. The blanket will not let any light through while the sheet will allow some light to pass through. When the light passes through the heat is passing through as well. This is the second way that you can keep your house cool without using the A/C.

3. Use fans

By using fans we move the air around us. We can perceive a three degree difference in temperature just because the air is moving. Think about a cool spring day. As long as you are out in the sun and the wind is not blowing you are warm. But, once the wind starts blowing you need to go and get your jacket. Using fans has the same effect. Ceiling fans do a good job of mixing the air. However, to move hot air out of your house you will want to use a box fan. If you open the windows on one side of the house and place a box fan in a window on the other side of the house you will be surprised at how well this cools off the house. Even better is to use two box fans. One pushing the hot air out of the house and the other pulling the cool air into the house. Do this and your house will be cool in no time. A note that I would like to make about using the box fans is this, do it at night. If you try to do this during the day you will be pulling hot air into your house. Make sure that you wait to do this until the air outside is cooler than the air inside the house.








4. Open the windows

This may sound simple and not effective, but this can be very effective especially during spring. Opening the windows allows the air to flow naturally in and out of your house. This natural movement of air moving past your body can actually make you feel like it is cooler than it is. This is because sometimes there is more moisture in the air outside the house than inside. When our bodies are in this moist air we often feel like the air around us is cooler than it actually is. So, go ahead and open those windows! And again, this works best when the temperature outside the house is cooler than the temperature inside the house.

5. Open the doors

Opening the doors is something that we typically forget that we can do. We often think that if we just leave the door open some random person will just walk in our house. But, if we utilize this huge opening and allow it to be used just like a window we will be able to reap the rewards of using the opening just like the window!

If you put these tips to use, you will be well on your way to keeping your house cool without using the A/C! If your like this article be sure to visit our Facebook page and like it to keep up to date with all of our articles!

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Energy Efficient Home

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So let’s say that you are planning on building a home and you are wondering what you can do to make your home the most energy efficient. What are some of the things that you need to take into account when planning for a more energy efficient home? You want to have a green home but you do not know where to start.

Here are a few tips that you can use when you are planning your green energy efficient home.

The first thing that you need to ask yourself is whether your initiative to go green is because you want to save money or because you want to save the planet. I know this sounds like a dumb question but if you are trying to go green simply because you want to save money then you may want to think about different traditional alternatives. Going green can typically save you money in the long run but the upfront cost may be prohibitive to some. If you are wanting to go green because you want to save the planet and you do not care what it costs you then thanks for helping out the rest of us!

The next thing to consider about building a green home is where you are going to be building the home. In some states there are incentives to using energy efficient materials such as energy efficient windows and appliances. Another factor to take into consideration are the utility rates that you will be paying where you build your home. Often times co-ops have lower rates than municipalities. Also, large energy companies can have cheaper rates and also offer rebates on things like geothermal heat pumps.

Planning is important in the building stages of your green home. You want to make sure that you have the proper amount of insulation in your home. It does not cost much more at this point to add more insulation than is recommended and it will save you in the future. Also, be aware of your eaves and overhangs.

If you are trying to build a green home one of the things that you need to be aware of is that the most expensive appliance in your home is typically your heating and air system. If you can plan ahead and put in extra insulation and plan so that you have no direct sunlight coming into your home during the day in the summer and have direct sunlight coming in during the winter your heat and air will not need to come on and off as often to keep you comfortable.

Green appliances are also a must. Get the highest SEER heating and cooling system that you can afford. Which leads to my next recommendation. Currently for most people it is cheaper to heat, cook and heat water with gas. This may vary depending on your location. If you can put in gas it would be to your advantage.




Another option is out there for heating your home. It is called a water stove and they are becoming very popular. Heating your home and your water can be upwards of more than 2/3 of your power bill. If you have access to cheap or free wood to burn and do not mind a little elbow grease this is a very good way to heat your home and your water.

Water stoves are basically boilers that heat water. They then use a heat exchanger to transfer that heat to the water. Finally, the hot water flows to your hot water tank and heats your home. They are typically installed away from the home because of the smoke and lines are run into the house.

Another thing that you can do to keep sun off of your house is to plant plants that have large leaves that provide good shade. This helps especially on the west side of the house to keep the hot setting sun off of the house.

Which reminds me that you want to make sure that you have south facing windows. These windows will allow sunlight in all year long without the sunlight being too direct.