Friday, March 28, 2014

REPOST: Energy expert reveals simple, low/no-cost energy habits to save millions

Stephen Baack of the U.S. Army website writes about how one expert’s simple suggestions could complement the efforts of the military to cut back on energy consumption.
Lights on in an unused maintenance bay were one of many issues that Lyman Parkhurst,
a Sain Engineering Associates inspector who regularly visits Army installations as
part of Installation Management Command's annual Energy and Awareness Conservation
Assessments, found during his trip to U.S. Army Garrison-Ansbach, Germany, in late January.
During his outbrief, Parkhurst revealed a list of simple, low/no-cost energy habit changes
                         community members can make that could be saving millions of dollars.
                        Image Source: www.army.mil
ANSBACH, Germany (March 13, 2014) -- It's the type of problem that goes unnoticed every day: an air conditioning unit blasting cool air only feet away from a propped-open door, a bedroom window left open next to a maxed-out heater, and powerful halide lights illuminating an unused maintenance bay for the entire day. 
Despite the millions of dollars of energy-saving enhancements rolled into the billions of dollars of Military Construction Program work the Army has completed in the last five to six years across its inventory, old habits have undermined these technological leaps. 
"Hundreds of billions of dollars were spent and our energy performance has not improved," said Lyman Parkhurst, a Sain Engineering Associates inspector who regularly visits Army installations as part of Installation Management Command's annual Energy and Awareness Conservation Assessments. "We may be better heated in the winter and cooled in the summer, and have better lighting, but we're using it all more than we need or the designers intended for it to be consumed." 
On Parkhurst's list of garrison walkthroughs in January and February was U.S. Army Garrison Ansbach. As at other installations, Parkhurst found things USAG Ansbach is doing well and things it could be doing better. While some of the issues he brought up during his briefing here only apply to the Directorate of Public Works such as long-term lighting upgrades and control setting changes, a significant portion of the problems he addressed are correctable through changes community members can make. 
Fortunately for the Soldiers, family members and civilians who live and work here, Parkhurst stressed that many solutions are low or no cost. Moreover, "the biggest low/no cost items are the simplest issues," he said. 
Regulating the heat properly in a facility, keeping windows closed and turning off lights were all major no-cost solutions he discussed at his briefing. These issues apply not only at houses and offices, but also at military spaces like hangars and maintenance bays. 
"The hangar doors left open only a few inches is the same as leaving a couple of personnel doors open," Parkhurst said. "The barracks and shops have a number of doors propped open with a rock or trash can or sign." 
All of those open doors, he added, add thousands of dollars in heating costs to each building -- not to mention that rocks or other objects used to prop open doors often cause damage. That might mean having to replace the entire door at a cost of several thousand more dollars.
"It's more than conserving energy; it's causing damage that we simply don't have the money to repair," he said.

BEHAVIOR CONTROL 
"We put computer control systems in place to control the heat and ventilation, and in some cases the lights," Parkhurst said. "So, we can monitor and control maybe 30 to 50 percent of the total energy use, but over the years that has meant an investment at most garrisons of $4 million to $5 million just to install and takes a handful of people to operate. We could always add more automatic controls to the lights and radiators and faucets, but is it necessary to add automatic faucets at $400 instead of changing our behavior to simply turn off the water and not waste it?" 
Parkhurst offered plenty of good practices, but said it boils down to behavior control.
"Behavior has such a huge impact, and the cost can be zero," he said. 
To illustrate his point, Parkhurst brought up a story a local national told him during a trip to another garrison. The local national had rented out a duplex for years to an assortment of tenants. About half of the time an older German couple rented the space. The other half, a succession of military renters occupied it, from couples to small families. The difference in energy consumption was eye-opening. 
"Through years of utility data and tenants he said the Americans used three to five times the amount of heat and five to 10 times as much water," Parkhurst recalled. "Identical units and equipment -- just different people." 
When it comes to energy conservation, it turns out USAG Ansbach is doing many things well.
In general, Parkhurst said USAG Ansbach's temperature regulation is the best area.
Improvements since the last assessment include the installation of radiant heating panels in hangars 1, 4 and 5 at Katterbach Airfield, and at the hangars and maintenance shops at Storck Barracks. New LED streetlights at Katterbach and Bleidorn are also a big plus, in addition to improvements to control systems and the installation of photovoltaic panels at Storck. 
"But, putting in new equipment is costly, and the results could honestly be better," Parkhurst said. "Because radiant heating is quiet, some of the bay doors were left open and people were not aware the heat was on and going out the doors. The better insulation in the housing helps keep the houses warmer, but now many are over-heated and not meeting the energy-savings targets; i.e. delivering the cost savings to justify the added expense in constructing them better."

TIPS 
Parkhurst provided a list of items the USAG Ansbach community can improve on with little or no cost. 
Setting thermostatic radiator valves appropriately was one of those big, no-cost, simple solutions. For example, generally in the winter users should set the valve at 3 in offices, 2 in hallways and 1 on the entry radiator, he said. A 5 will often overheat a space and, "when it's combined with an open window, then we are sending dollars flying out that window." 
Also, keeping windows closed is important to remember, he said, except for the short periods of time each day users vent their homes. Venting should be one or two hours a day, not 24/7.
"That and shutting off lights that are not needed," he added, "either because there's plenty of natural light or it's during lunch break or the area is unoccupied." 
Hangars and maintenance bays also have a big role to play. 
"With the large metal halide lights that take 10 to 15 minutes to warm up, people tend to enter the bays in the morning and turn all the lights on and leave them on until everyone leaves for the day. But, some buildings had half or more of the bays unoccupied and also most had good natural lighting from plenty of windows. If the bay is unoccupied but it's dark outside, then only turn on a portion of the lights. 
"If there are going to be more aircraft or vehicles moved into the bay," Parkhurst added, "turn on the additional lights, go connect the tug to the aircraft and move it into the bay. By the time you need the light it will be on. Even better, label the light switches as to which portions of the bay they light: east, west, Bay 1, Bay 2, etc."

CHANGING COSTLY HABITS 
"The assessment was an excellent look in the mirror for us a garrison," said Kevin Griess, deputy garrison commander, who was at the Jan. 31 briefing. "It is always beneficial to have a highly qualified and experienced third-party subject-matter expert such as this to conduct a thorough review of our garrison. The assessment provided valuable insight to some positive improvements that we can make as a garrison and a community." 
The numbers Parkhurst shared with USAG Ansbach leaders during his briefing told a story of increasing prices and unchanging habits -- something Griess wants to turn around.
Since 2007, USAG Ansbach's facility energy consumption has remained relatively stable at roughly 325,000 MBTUs per year (for reference, one MBTU in this context equals one million British thermal units, and one BTU is equal to the amount of heat energy required to increase the temperature of one pound of water by 1 degree Fahrenheit). In fiscal 2007, that cost the garrison almost $10,000,000. In fiscal 2013, that price went up to nearly $16,000,000. 
"It all comes down to consumption," said Griess, who stressed that changing consumption patterns gives an "immediate and measurable" reduction in costs -- and is easy to do. 
"I say easy because it is easy to close a door, to close a window, turn off the lights, etc.," Griess said. "It is not so easy to change our habits, and that is what we must do as a community. 
Reducing energy consumption brings direct dollars right back to the garrison; dollars that can be used for other projects that benefit Soldiers and their Families." 
Unfortunately for the goal of better energy consumption, too many people have yet to come around to Griess' and Parkhurst's attitude of conservation through behavior control. 
"We really do tend to think, well there's so much money and waste in DoD or the Army that this won't make a difference, that putting this rock in the door is no big deal, that leaving this hangar full of lights on all night is not that important," Parkhurst said. 
"The reality is that the energy bills have to be paid," Parkhurst continued, "and maybe that means we cut a few staff positions, which means the door is not repaired, along with that broken window, and then there's water damage inside, and that causes mold, which means mold remediation, which is costly, and now we have to make some other cuts or forego some repairs. We know what that does to helicopters, or vehicles, or your own car or house."
Hobson Air provides customers with expert vent and duct cleaning services. Visit this website for more on the importance of clean HVAC systems.

Saturday, January 18, 2014

REPOST: Cooling has key role in building energy

RAC editor Andrew Gaved gives emphasis on what the cooling industry can do to help improve building energy efficiency.


Image Source: blogs.law.columbia.edu



















The subject of energy seems to be being talked about nonstop at the moment – from attempts to rein in suppliers to the risk of the Grid reaching capacity to, of course, the rising cost of the stuff.

We have thrown our two penn’orth into the debate by way of our first Building Energy Question Time (see RAC January issue). It was a fascinating discussion which had in about equal parts good news for the industry, depressing news for the industry and challenges for us to rise to.


As is traditional, here’s the bad news first: there is a clear sense that much of the regulation surrounding energy isn’t working, for either the supply chain or for customers. At the Question Time, panellist after panellist talked about regulations that were missing the mark, whether it be Green Deal, which has expensive interest rates, deterring take-up; Part L, which has dropped the consequential improvements element so crucial to keeping heat in a building; or Energy Performance Certificates, and the woeful take-up of the air conditioning inspections – the mandatory inspections remember – which were supposed to help building owners improve energy efficiency.

Image Source: cooling4industry.co.uk















However, the good news is that the cooling industry can play a major role in improving building energy. Former Cibse president Andy Ford painted a particularly compelling picture of using ground source heat pumps to manage heating and cooling across a year, to the extent of linking buildings that have a heat need with those that have cooling. As he wryly noted, this approach ‘introduces the idea that cooling is actually good – not wicked as many green people seem to think’. I hope Ecobuild and its speakers have taken note.


The main challenge is to galvanise our industry to take on these opportunities, and to shout louder than some of the other noisy lobby groups to convince government we have some of the solutions to reducing buildings energy. We will be returning in 2014 with another Buildings Energy debate, so watch this space.


The other thing that a lot of people are talking about (still) is the fallout from the demise of WR Refrigeration and what the industry might be able to learn from it. There has been reaction from across the industry to the opinions of Kelvin Lord in last month’s issue, and we carry some of the responses, as well as a counterpoint from Thermacom’s Trevor Dann in the January issue.


Image Source: ecofriend.com













One of the overarching themes is that the retail contractors’ margins are becoming too low to be sustainable. Doing something about this is of course the big challenge – it has been suggested the only reason retailers get away with consistently driving down prices is because no one is standing up to them. But it isn’t quite as simple as that when the buying team across the desk holds the power over 30 per cent of your business. Or more.


What the industry doesn’t need is for the WR debate to increase tension between contractors and customers. Because now, perhaps more than any other time for decades, the supply chain needs to pull together to meet the demands of a reduced emissions, reduced energy future.


Hobson Air Conditioning Inc. is a full-service air conditioning and heating contractor based in Texas. Visit this website to learn more about its products and services.

Friday, December 13, 2013

wikiHow: How to Cut Heating Bills This Winter

As the price of heating fuel continues to rise, home owners can take the following steps to lower heating bills. While a few suggestions are more costly and will structurally improve your home, others are easier suggestions to seal your home and keep heat in. A little time spent now can mean dollars off your next heating bill.

Read a few tips on wikiHow.

Friday, November 15, 2013

REPOST: Preparing for cold weather

North American Precis Syndicate stresses the need to prepare the heating system, among others, for the coming of colder weather.

You may care to give a warm welcome to these ideas that can help ensure that your home heating system is in tip-top shape to handle the stress that cold weather can place on a home.

Start first by scheduling a clean-and-check service call by a qualified technician. Not only will this preventative maintenance help keep your system operating optimally when you need it most, it can help restore lost efficiency, lower utility bills, minimize repairs, improve capacity and extend the life of your heating equipment. No matter how energy efficient your furnace or heat pump was when it was installed, proper maintenance is needed to keep it that way.

A professional heating system technician can help you keep your home comfortable and your heating bills affordable. Image source:scoopsandiego.com

Expert’s Advice

“When looking for a heating, ventilation and air-conditioning [HVAC] contractor, it’s important to ensure they have the proper credentials,” explains Tom Archer, heating product manager, Carrier.

Leading residential contractors gain their certification from three principal organizations: the North American Technician Excellence program (NATE), the Air Conditioning Contractors of America (ACCA) or the Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA).

“If the contractor you’ve found is certified by one or more of these organizations, you’ve found a reputable business,” continues Archer. “In addition, ask your friends and neighbors who they’ve worked with in the past and how they fared with the experience.”

Understanding he Inspection

Once you’ve selected a reputable contractor, schedule an appointment to have your home comfort system inspected. This inspection should include checks to ensure that airflow and drainage are unobstructed and monitors and electrical connections are functioning properly. A qualified contractor will also check all components of the equipment, and inspect the ignition mechanism, the flue draft and indoor airflow for maximum efficiency and the burner assembly and heat exchangers to ensure all heating components are working to capacity. Lastly, the technician will clean and lubricate all necessary parts.

Following the furnace inspection, the technician will also inspect any indoor air quality components you may have, including air purifiers or humidifiers and ventilators. The contractor will then test the thermostat calibration and conduct start-and-run testing to be sure your system is responding properly to what your house needs. Once testing is complete, the technician will confirm that the safety controls are working and effective.

The final step of the visit should be the replacement of the furnace filter, as needed. Filter replacement is a key factor in ensuring efficient furnace operation. Not only does your furnace need clean air to function correctly, the filter is an important part of cleaning the air going into your home. Plus, a dirty filter can restrict airflow and could cause the furnace to overheat and shut down.

How Often Should You Change Your Filter?


“Well, that depends,” says Archer. “For instance, thick, highly pleated filters can trap particles and contaminants for a longer period of time than thinner filters; similarly, furnaces with air filters may only need to be changed once or twice a year. However, if you use your furnace fan all year long to circulate air or if you have pet hair and dander in your home, then you may need to change the filter more frequently. Your technician will be able to assess the type of filter in your system and outline a schedule for you to check and replace it throughout the year.”

There is a lot to consider when preparing for the cold, but with the help of a credentialed, qualified technician, it can be a simple, straightforward process, and one that can keep your home comfort system running efficiently and properly throughout the year.

More on preparing HVAC systems can be accessed from the Hobson Air website.

Sunday, November 3, 2013

YouTube: How It Works: Air Conditioners

This free troubleshooting video provides information on how an air conditioner works and the common problem associated with air conditioners. Gaining an understanding on how the air conditioner works and knowing which parts fail is the first step in the troubleshooting process.


Monday, October 14, 2013

REPOST: New York Power Authority issues guidelines for achieving energy cost savings at K-12 schools

One of the advantages of clean ducts is the amount of energy they save in the operation of an HVAC system. The Niagara Wheatfield Tribune reports the New York Power Authority’s suggestion of improving the energy efficiency of schools in the area, which includes upgrading HVAC systems.
A new report by the New York Power Authority on best practices for achieving energy cost savings at New York schools highlights significant economic and environmental benefits from increased investments in energy efficiency and clean energy technologies at public and private K-12 schools. The accelerated energy efficiency initiatives highlighted in the best practices report would complement Gov. Andrew M. Cuomo's Build Smart NY initiative to reduce energy use in state facilities by 20 percent by 2020.

Image Source: www.archnews.com

"The New York Power Authority looks forward to continuing to support the statewide efforts under Gov. Cuomo to lower the energy bills and carbon footprint of schools through investments in energy efficiency and clean energy technologies," said Gil C. Quiniones, NYPA president and CEO. "We hope that our newly issued best practices report reaches those school districts that have yet to take advantage of our energy efficiency program for schools. We are ready to work with them."

Since its inception in 1991, NYPA's Energy Services for Schools Program has benefited nearly 1,300 schools in 33 counties, which represent about 30 percent of public K-12 facilities statewide. The program, has reduced the peak energy demand of schools by more than 70 megawatts, and eliminated nearly 180,000 tons of greenhouse gas emissions a year. (One MW is enough electricity to meet the needs of 800 to 1,000 typical homes.)

Moreover, the program has saved school districts roughly $37 million in energy costs annually.

The more than 650 projects that NYPA has financed and implemented, to date, at primary and secondary school facilities account for more than $400 million in capital expenditure improvements.

Image Source: www.appanet.org
Installations include new lighting and sensors; energy-efficient chillers, boilers and controls; heating, ventilation and air-conditioning modernization; energy management systems; on-site solar photovoltaic arrays; and replacement of coal boilers with dual-fueled clean heating systems that burn natural gas and No. 2 fuel oil.

The goal of The Best Practices for Energy Cost Savings in New York State Schools report is to provide a high-level overview of the achievable energy efficiency potential in K-12 facilities across the state. The report states that, even with the achievements of NYPA's Energy Services for Schools Program, the remaining potential for increased energy savings is nearly five times the level of what has been achieved to date.

The report notes that, by maximizing the economic energy efficiency potential at schools, more than 18,000 jobs would be created by 2030 in energy-related products and services industries. It would also reduce annual carbon dioxide emissions - a cause of climate change - by 1.4 million metric tons, or the equivalent of taking about 300,000 cars off the road each year.

In its undertaking of energy efficiency upgrades, NYPA recovers the project costs through the savings over several years' time after which the schools keep all of the recurring annual savings.

The recommendations in the best practices report include performing benchmarking and energy audits of current school energy use; promoting awareness at schools of the benefits of energy efficiency and behaviors that impact energy use; adopting best practices of other school energy-efficiency programs around the nation; providing specialized support tailored to the individual schools and districts; expediting the start of construction projects through a streamlined review and approval process by New York state agencies; and tapping into low-cost and no-cost energy-savings opportunities.

"Districts are encouraged to use the guidelines included in the report to identify ways to reduce energy costs," said Carl Thurnau, director of the office of facilities planning, New York State Education Department. "This report is a helpful tool to assist school districts in managing their facilities to conserve energy and allow greater resources to be devoted to the classroom."
For more on the benefits of a clean or upgraded HVAC systems, visit this Twitter page for Hobson Air.

Monday, September 23, 2013

REPOST: Air conditioner: Keep in or take it out

As autumn approaches, it may no longer seem necessary to keep the air conditioner around, specially since the warm air can escape through the hole in the wall where the appliance sits. With the unpredictable temperature fluctuations, the question is when to take the air conditioner out. This video article on WWLP discusses a few options.

Video source: WWLP

As the temperatures drop, it's probably something you're considering: whether you'll need your air conditioner again before next spring.
The problem is mainly for people with window air conditioners, take them out too soon and you might be caught sweating on the next warm day.
"I had my heat on last night," said Anthony Rondoletto from Springfield.
Cold nights and mild days make it tough to decide whether it's time to take out your window air conditioning units.
Around Chicopee neighborhoods it was easy to see that many people still have them in, but some won't keep them in for much longer.
Most people like the indoor temperature of their home to be in the upper 60s or low 70s and while cooler air is certainly on the way into October, there could be those warmer day exceptions.
For example, just last week temperatures hit the mid 90s in the lower pioneer valley.
"I'd probably take it out just because it doesn't stay hot very long now. It might be hot for a day then it cools down at night so I don't really see the need for it," said Scott Griffith from East Longmeadow.

While taking your a/c out too early could be a bit of a risk, if you keep your air conditioner in too long you could be letting warm air out and bringing an unnecessary increase to your heating bill when the cold air does arrive.
"What month do you normally take it out? Umm it could stay there until November sometimes," said Sheena Neily from Springfield.
For comparison, after this date last year we hit the mid 70s or higher only three days through the end of the year.
Electricity bills can run very high if heat or cool air is not properly insulated in the home.  Hobson Air conducts maintenance checks to ensure that a household is maximizing the benefits of their cooling or heating systems.  Follow this Twitter account for more tips on energy efficiency.