How Monitoring Dramatically Reduces Energy Costs

One of the most cost-effective ways to reduce energy costs is to monitor energy consumption in one minute increments and watch the trends over time. Almost every building will immediately find quick and easy ways to reduce energy costs by 5% or more. And knowledgeable professionals can often use the data to drive down energy costs by 20% or more and improve facility comfort and performance at the same time.

Let's take an actual example. Forward Energy Solutions recently subscribed to Continuous Energy Management & Optimization (CEMO) from Davies Energy Systems. The process involved two steps: (1) installing a real-time energy monitoring system from Noveda Technologies; and (2) having Davies Energy's engineers analyze the data and develop better ways to manage and optimize facility energy usage.

Here is the minute-by-minute display of electricity consumption that Foward Energy Solutions saw after just one day:


Notice the two distinct sets of spikes in energy consumption. The first occurred just before 4:00 a.m. when no one was in the building. The next set of distinct spikes started at 7:00 a.m. and continued until 5:00 p.m. Each of the spikes lasted only a minute or less and were not noticed by the people in the building. But over time they amounted to a significant increase in kwh consumption. They also may increase the peak demand charges on the company's monthly electric bill.

The culprits were quickly identified. A small refrigerator was malfunctioning and spiking the consumption at 4 a.m. An air-conditioning system in need of repair was causing the spikes during regular business hours.

Catching these types of problems generates immediate savings by reducing kwh consumption and peak demand charges. The avoided costs will continue to be realized each and every month into the future, often adding up to thousands of dollars in energy savings.

Identifying these types of problems early on also avoids the cost of more expensive repairs down the line. Without monitoring, no one would have noticed the air-conditioning problem until it stopped cooling the building -- most likely on the hottest day of the year. At that point, the company would have already wasted money on unnecessary energy costs, plus it would be facing the higher cost of repairing or replacing the air-conditioning system on an emergency basis. Not to mention the loss of employee productivity in a sweltering office until the repairs could be made.

Francis X. Lamparello, P.E., the Chief Technology Officer at Davies Energy Systems, says that he finds these types of issues in almost every building. But these problems are just the tip of the iceberg when it comes to saving energy. "Buildings are living, breathing entities that must be monitored and adjusted on a continuous basis," he says. "For example, maintaining proper air pressure inside the building can keep warm air from entering in the summer, and letting in more cool outside air on a sunny Fall day can give you 'free cooling' to offset the heat caused by the sun shining on the windows." All of these energy saving solutions, he points out, are free or inexpensive once you have real-time monitoring and expert advice on how to manage the facility.

What's next for Forward Energy Solutions? Now that they have the data, they are working with Davies Energy on a number of additional ways to drive down their energy costs. More on that in later blog posts.

John Howley
Orlando, Florida

The Power of Green Thinking (and Small Green Acts)

A friend invited me to join a Facebook group called the Carbon Conscious Consumer (C3) Campaign. The group has a simple agenda: To promote "6 easy steps that anyone can take to reduce our carbon emissions."

Many people scoff at such lists of "easy" ways to save the planet. Thomas Friedman, for example, worries in his book "Hot, Flat, and Crowded," that the "amount of time, energy, and verbiage being spent on making people 'aware' of the energy-climate problem, and asking people to make symbolic gestures to call attention to it, is out of proportion to the time, energy, and effort going into designing a systemic solution." He points out that the energy problems we face are huge -- if you convert global energy consumption into oil equivalents, we are consuming 420 million gallons per hour. We need game-changing technologies and policies, not just six easy ways to go Green.

I agree. So why did I join the C3 group and invite my friends to join too?

Because our daily thoughts and actions drive our national policies and investments.

Think about the 1980's and 90's. Does it surprise you that a nation of people who drove SUVs and built McMansions elected politicians in both parties who did not think about climate change or how our oil consumption was subsidizing despotic regimes? This is not an ideological issue. Very few people in either political party thought much about energy efficiency when buying cars and homes in the 80's and 90's. That thoughtlessness was an important driver of our national energy policies during those decades.

Since then, we have become more aware of energy and the environment as a result of a few extraordinary events. The terrorist attacks of September 11, 2001, and the realization that the terrorists came from countries subsidized by our oil purchases. The escalation of oil prices a couple of years ago. The current Great Recession. The debate over global warming.

Those of us who lived through gasoline and home heating fuel shortages during the oil embargo of the 1970's know too well how transitory these trends can be. How do we sustain our interest in sustainability?

By changing the way we act. People who act every day in small Green ways will enter the polling booths with a completely different mindset than people who drove their gas guzzling SUVs to the polls.

Besides, we must do something while we wait for the game-changing technologies. The six simple steps will have a meaningful impact.

Let's take just one of the six simple steps: Breaking the bottled water habit.

World consumption of bottled water has increased by 70% since 2001 to more than 200 Billion litres. Of that amount, Americans bought more than 33 Billion litres. That's a lot of plastic bottles that need to be manufactured, filled with water, shipped to warehouses and stores, cooled in stores or home refrigerators, and recycled or thrown into landfills where they will take up to 1,000 years to decompose. Each stage of this process uses much more energy than running tap water through a filter.

Will reducing or eliminating all this waste solve our energy and environmental challenges? No. But it's a start. And an American public that thinks about how much energy and other resources are consumed to produce a bottle of water is one that will think about energy and environmental issues when choosing its leaders.

That's why I joined the Carbon Conscious Consumer (C3) Campaign and am promoting the group to my friends. Because thinking and acting Green in our daily lives will make a difference today, and it is the only way we will build a public consensus to invest in the game-changing policies and technologies we need for the long term.

John Howley
Orlando, Florida

The Most Cost Effective Energy Solution

The Department of Energy is promoting something called "trip linking." It is a very simple, even obvious idea. Instead of making 5 trips in your car to run 5 different errands, plan out your day and make just one trip with 5 stops. You will save gasoline because you will drive fewer miles (e.g., just one trip down your driveway instead of 5). You will also reduce emissions even if you drive the same distance because your car engine runs more efficiently when it is warmed up than when it repeatedly turns over from a cold start.

I heard this message on the radio several times this week. Do we really need to tell people something so simple and obvious?

YES!!

One of my company's technology partners recently had an enlightening experience with energy education and awareness. They installed a smart electric meter that allowed every employee to see their building's energy consumption on a real time basis on a computer screen. Pretty soon a lot of employees began noticing that there were distinct spikes in energy consumption throughout the day. Being curious, some employees tried to figure out what was causing the spikes.

Turns out it was the elevator. Every time someone used the elevator, the little chart on the screen jumped.

Once people realized how much electricity was being consumed by the elevator, they began to walk up and down the stairs.

Two months after simple energy consumption awareness began, the company announced that electricity consumption in the building had dropped by more than 3%. Then the fun began. Employees wondered how much electricity could be saved if they conscientiously turned off lights when not needed. And if they turned off their computers at night. Pretty soon, everyone in the building was taking little steps to reduce their energy consumption ..... and watching the results on their computer screens.

After 7 months, the company had reduced its electricity consumption by more than 14%. No huge investments in technology. A 14% reduction in energy consumption merely by making people aware of the energy they were wasting.

So, what is the most cost effective energy solution?

Awareness and education.

John Howley
Woodbridge, New Jersey