Showing posts with label Energy efficiency. Show all posts
Showing posts with label Energy efficiency. Show all posts

Wednesday, January 6, 2010

Welcome to your new Green Life in 2010


I found a really great article in last year's National Geographic Green Guide describing the day in the life of someone that pulls in all the pieces of a newly-converted environmentally conscious person. (Italicized and bracketed comments are mine). Here's the highlights:

7:00am:  Read the morning paper online.  Reading a year's worth of newspapers on your computer saves 520 pounds of paper, or about three trees per year.  (And, no stepping outside in your bathrobe frightening the neighbors)

7:15am:  Shower with a low-flow showerhead.  Because low-flow showerheads reduce water consumption, they can save up to 10% on water-heating costs.  (Alert:  money saver!)

8:25am:  Pack your lunch in reusable containers.  Containers and packaging make up one-third of municipal solid waste, more than any other category.  (Again, a money saver.  No purchasing baggies or expensive, often-unhealthy, restaurant food for lunch.)

8:45am:  Brew a cup of eco-friendly coffee at home and pour into a reusable mug.  Because conventional coffee is grown on clear-cut land and requires loads of chemical fertilizers, each household that switches to organic, shade-grown coffee helps protect more than 9,000 square feet of rain forest.  Plus, Americans toss out 16 billion disposable paper cups per year.  (Eco-friendly coffee is often a better quality brew as well.  If you're a coffeehouse addict, purchase their coffee and brew it at home.)

8:50am:  Power down before you leave the house.  TVs, stereos, chargers, and most appliances with clocks drain energy when they're plugged in - even if they're not on.  Its called "standby power" and it accounts for 5% of residential energy, costing US consumers over $4 billion per year.  Plug them into power strips that you can switch off easily. 

9:00am:  Carpool to work.  According to the California Air Resources Board, approximately 50% of air pollution comes from automobiles.  (Depending on where you work, this can either be really smart or rather difficult.  Weigh your options and make changes elsewhere if carpooling is not viable.)

9:30am:  At work, fire up your laptop.  Laptops require much less energy than desktops.  (When your firm makes a change in their technology, suggest laptops all around.  Don't forget to donate your used computers to a non-profit or to a school.)

11:00am:  Print on both sides of the page, single-space your files and decrease the size of margins.  Americans use 5.4 million tons of office paper every year.  You use four times less paper when you print single-spaced and on both sides.  Save even more by shrinking the margins to .75 inches from the standard inch.  (Again, your mileage may vary on this one, depending on layout requirements and readability.  But, at the very least keep a basket near the copy machine for accidents and overruns to be used as scratch paper.)

3:30pm:  Schedule a conference call with a client instead of a face-to-face meeting.  Conference calls cost a fraction of site-to-site travel and save a significant amount of energy.  Replacing one cross-country trip with a conference call saves 0.4 metric tons of carbon dioxide and enough energy to power 7,000 hours of videoconferences.  (With programs like Skype and the availability of webconferencing, you can still experience face-to-face.  Invest in a really good quality web-cam and highest speed connection to make it work at highest efficiency.  If your best client is on the fence, spring for a webcam for them, too.  Low cost gift for them and it shows your commitment to reducing your carbon footprint.)

5:55pm:  Plug your computer into a power strip and switch it off at the end of the day.  Over the course of one year, you'll save 1.5 tons of carbon dioxide emissions, and reduce standby power loss.  (And the boss will love you for working to reduce their energy bill.)

6:00pm:  Text your partner to say you're on your way home.  Text messages sent from a cell phone use 30 times less energy than sending an email from a desktop computer.  (Before you start the car, though...  Don't text and drive!)

6:15pm:  Bundle your evening errands to save gas and reduce pollution.  Starting a car with a warm engine emits one-fifth the pollution created by starting a cold engine.  (And you can get to your dinner and movie quicker by effectively planning your time.)

6:20pm:  At the gas station, tighten your gas cap.  In the US, 147 million gallons of gas evaporate every year from cars with gas caps that are damaged, loose or missing.  Make sure your gas cap is tight by turning it until it clicks three times.  (My dad told me that I had to tighten the cap or the car would explode.  In retrospect, I think he was trying to scare me into doing it.  But, since he isn't an 'environmentalist', I'd say it was probably a cost-saving measure.  What doesn't evaporate, stays in the tank to work for you.)

6:25pm:  At the ATM, say no to a receipt.  It takes two billion feet of paper to create receipts for the eight billion ATM transactions that occur each year in America - most of which end up as litter.  (Really...   are you going to write it down when you get home anyway?)

6:30pm:  Take canvas bags to the supermarket.  In the US, we use 11 million plastic shopping bags every hour.  The trick to using your own bags is to put them back in the car as soon as you've unpacked your groceries - they won't do any good if you leave them at home.  (Target offers a $0.5 discount if you bag your items in a recycled bag.  Hey, 5 cents is 5 cents....  good for them.)

7:15pm:  Before you head to dinner and a movie, print the tickets from your desktop.  Movie tickets printed at home are easier to recycle than the paperboard used to print tickets at the theater.  (And breeze by the line!  That's my favorite part!)

8:00pm:  Eat dinner at a restaurant that serves locally grown, organic food.  Check gengreenlife.com for a list of eateries and food stores that sell environmentally friendly vittles in your zip code.  Or, if you eat at home, choose the right burner and don't preheat the oven until you're ready to cook.  If the circumference of the burner is larger than the size of your pan, you're leaking unused heat into the air.  The longer an oven is turned on but not used, the more energy it wastes.  There's no need to preheat if you're cooking foods for longer than 20 minutes.  (Ahh, our grandmas would be so proud of our frugal methods!  She don't care what we call it...  green, sustainable, eco-friendly.  She calls it frugal.  And she's right.)

-Kate Hanley, National Geographic Green Guide

One other great idea I found was to create a "Going Green" kit and give as gifts to clients, customers, friends, and family:

  • Reusable tote bag
  • Stainless steel water bottle
  • Travel coffee mug
  • BYO-lunch supplies - an insulated carrier, untensils, and aluminum foil (instead of plastic wrap)
  • Compact fluorescent light bulb
Brainstorm for other items to include in your Kits and share the sustainability!

Have a great week!

Wednesday, July 16, 2008

Advanced Sustainability

This article is not for those newly initiated into green building. It's not for the faint-at-heart, nor is it for those just learning about sustainability.

Why? Because this article pushes our view of 'green' into the next phase.

So you've wrapped your mind around the idea of recycled and renewable, life cycle costs, carbon footprint, and energy savings. Now, let's talk about embodied energy.

Embodied energy refers to the energy required to extract, manufacture, transport, install, assemble and supply to the point of use a product, service, or material.

On the surface, a product may appear 'green', but what happens when we take into account the full, embodied energy?

The following is an article from Forbes Magazine:

When Building Green Harms The Environment
Matt Woolsey, 07.15.08, 6:15 PM ET

Gay Browne and her husband Tony have set out to build the greenest house in Montecito, Calif., in a small gated community near the ocean. They'll find the task much simpler than when they pursued the same green goal, in 1994, in Pacific Palisades, outside of Los Angeles.

Back then, builders had no idea about which materials were truly sustainable or were start-to-finish green, as opposed to being "greenwashed"--materials and appliances that might purport environmental friendliness through advertising or a fancy seal, but are environmentally detrimental. When Gay needed counter tops, she took a Geiger counter to a rock quarry to find the stones with the lowest radiation levels; she even found the one insulation maker in the country that used cotton batting instead of environmentally harmful fiberglass. In other words, she had to do everything herself.

Today, Browne, as the founder of greenopia.com, a site that helps consumers distinguish between those products that are highly efficient and have a low footprint from those that are masquerading as environmentally conscious (likely to take advantage of the growing green-materials market), has a much better idea as to what home-building materials and procedures are the greenest. The site is now a go-to resource for truly green construction, as buying greenwashed materials isn't just the slightly less environmentally friendly alternative; these products can increase your carbon footprint significantly.

Enthusiasm Despite The Downturn The remodeling market has slid with the housing market. Starting at the end of 2005, activity in remodeling has been decreasing steadily, according to the National Association of Homebuilders' Remodeling Market Index. David Seiders, the NAHB's chief economist, estimates that the market will further weaken through 2008. However, research from the NAHB and the American Institute of Architects indicate that green building is a growing component of the overall sector, and that green contractors have longer backlogs.

As a result, an increasing number of products are being positioned as green to take advantage of one of the few growing segments of housing. The most common false claim involves hidden trade-offs, according to research from TerraChoice Environmental Marketing, an Ottawa-based firm that, in November 2007, tested 1,000 household products making green claims. A good example of a hidden trade-off is concrete, which seems green once you own it, but is environmentally harmful to produce.

"Concrete is very durable, all natural and technically recyclable," says Eric Corey Freed, the principal of organicARCHITECT, a green architecture firm in San Francisco. "But its chief ingredient is Portland cement, which is heated to 5,000 degrees during manufacturing and lets off high carbon emissions."

How a product uses energy over its life makes a big difference as well. Carpets, for instance, might be made from sustainable fibers or recycled soda bottles. Assuming it's not backed with vinyl, which some are, think about the idea of the carpet itself. It requires cleaning, vacuuming and collects dust and pollen more than hardwood does. You need to amortize every extra watt it will require--and sneeze it will cause--over its life.

Supply-Chain Uncertainties. Another problem stems from how global supply chains work. Very few green operations are completely vertically integrated, meaning that it's rare for a company to own and operate every phase of the manufacturing process. From the time a piece of bamboo is harvested in China to the time it's installed as flooring in an Omaha living room, it's often gone through the hands of multiple companies--some green, some not so much.

While the flooring company in Omaha can truthfully say that it's using sustainably harvested wood (though bamboo is technically a grass), the shipping and trucking companies used to get the materials from China might not be green-oriented, and the factory where the bamboo is pressed might bond it with formaldehyde, or use a toxic finishing product.

"Consumers are looking for easy answers, and when I shop I prefer to see a logo on something and just buy it," says Scot Case, vice president of TerraChoice. "But the biggest piece of advice I have is don't buy a product because it has some green dot on it unless you understand exactly what that green dot means."

If a company doesn't chart all the materials used, makes claims on only one component of its sustainability, or makes no mention of manufacturing techniques, it's important for consumers to call companies and demand a material safety data sheet, which details every material used in the product, its disposal instructions, what sorts of gasses it emits, its level of toxicity and disposal instructions.

But another important tactic is conservation. For example, PaperStone and Richlite make high-end, recycled countertops that will more than likely outlive you, but so will your current granite countertops. Another good example is linoleum floors, which don't off-gas anything harmful, are easy to clean, aren't toxic and will last 25 to 50 years. Neither granite nor linoleum is as green as post-consumer compressed paper countertops or bamboo floors, but if you throw away the old floor and counter top in a landfill just for the sake of switching to a greener material, you're not doing a lot to reduce your footprint.

When a remodel is absolutely necessary, however, take the phone book out from under the short leg of the table, and look up salvage yards. In many cases, older is greener.

"Salvage companies are inherently green," says Freed. "We have clients who buy a new house and want to remodel it, and will throw away a perfectly good toilet and bathtub because it's the wrong color. If we can't change their mind, we try to salvage it."

Though if you've got a flair for design and carpentry, you might want to refashion what wood or metals you're throwing away. As anyone who's ever been to an artisanal furniture store can attest, old barn doors and rafters are converted into high-cost furniture.

"I really like the antique look of reclaimed stuff," says Browne. "But they really do mark it up."

http://www.forbes.com/lifestyle/2008/07/15/green-home-decisions-forbeslife-cx_mw_0715realestate.html

Thursday, January 24, 2008

LEED ROI and Payback

Here we are again, speaking on the cost of going green. I find it remarkable that there are those that still question the value and benefits of going green even when faced with strong Return-on-Investment numbers that confirm that high-performance building is the right way to go. Is it so difficult to believe there's some good deals out there?

I'm currently attending the FEFPA (Florida Education Facilities Planners Association) in Fernandina Beach and this morning's speaker, Alan Whitson, spoke about money and green building: It's the Money: Separating Green Fact from Fiction. (For more information on Alan Whitson, visit www.squarefootage.net) He provides some excellent numbers to share with clients when discussing green building options.

As mentioned before, the first question asked when discussing a LEED project is "How much more is it going to cost?" Or, "What is the payback on this?" If you had to convince an owner that the payback period was 5 years, would you receive a favorable response?

How about if you said the return on investment was 20%?

20% sounds mighty good.

In his example, the 5 year payback earned a 20% return on investment. I think we should start talking in terms of ROI instead of payback. Whitson does, too. He shared some excellent suggestions on why to use ROI instead of simple payback:

Simple payback focuses on how fast capital is returned, not on maximizing the return on capital. Simple payback doesn't consider post payback period cash flows, the time value of money and the risks to the cash flow.
Acceptable time periods are arbitrary and do not reflect market rates of return.

He also suggests that we include ALL financial benefits that can be generated including increases in building value and shareholder value. Your assumptions should include a realistic time horizon, inflation, and reinvestment of savings. Also, consider the financial impact of depreciation and income taxes.

Here's a great example Whitson provided:

Let's look at the impact of a $0.40sf. annual energy savings on a 130000sf school.
With no inflation and no reinvestment: $2,600,000 savings
With 2.5% inflation rate and 5% reinvestment: $22,260,535 savings
With 2.5% inflation rate and 8% reinvestment: $41, 093,713 savings

If you could incorporate energy saving measures that would equal $0.40sf on a 130k sf. project, you could reasonably earn back $41M dollars?

Let me guess... "That couldn't POSSIBLY be correct. There must be faulty numbers or everyone would be doing this."

Mmm hmm. Exactly.

As the green building champions that we are, we should be providing our clients the tools they need to make the right decisions. It's up to us to get this information into their hands so that they can move forward with sustainable projects. This is what they need to present their shareholders, or their boards, or their owners, so that they can feel strongly about making the right decision.

Most owners already have the desire to build an environmentally responsible, healthy place to work and live. Let's show them that it can be profitable, too.

Monday, December 17, 2007

Have a Cool Holiday!

With one week left until Christmas Eve, many (if not all) of us are still shopping around for last-minute gift items for friends and family. Take a moment to consider what we can do during this time of excess and indulgence to conserve and protect our natural resources and the environment.

The National Resource Defense Council has offered a few hints on how we can continue to be good stewards of our environment during the holiday season:


1. Ground Shipping: The early bird... cuts pollution? It's true: Do your online and catalog shopping early and you'll be able to request ground shipping. It is six times more efficient than overnight air shipping. It saves fuel and reduces global warming pollution.


2. LED lights: Holiday lights are a fun way to make your home feel festive, inside and out. But to save energy, remember to turn them off when you're not at home and before you go to sleep. Shopping for new lights? Energy-efficient LED lights are the best choice, and they're not available at most major retailers. LED holiday lights use about 90% less energy than conventional lights. They'll help make the season bright while substantially lowering your holiday electric bill. (From the PG&E website: Based on annual operation costs of 225 hours of use (5 hours a day for 45 days), large incandescent holiday lights cost approximately $70 to run, mini-incandescents $5, and LEDs $0.45. Big difference there!)


3. Energy Star: Hoping to unwrap a computer, TV, washing machine, or dishwaser this year? Make sure your loved ones know about the Energy Star label. Home appliances and electronics bearing this label must exceed minimum standards for energy consumption; an Energy Star appliance can lower your utility bills and help reduce the heat-trapping pollution that causes global warming at the same time. (Also, from today's Times-Union, watch out for those snazzy flat-panel TVs: a 28-inch convention television set containing a cathode-ray picture tube, often uses about 100 watts of electricity. A 42-inch LCD set requires about 200 watts of electricity. a 42-inch plasma set sucks up 200 to 500 watts. A 60-plus-inch plasma screen can consume 500 to 600 watts, depending on the model and programming. In the biggest screen sizes, a projection television consumes about 150 to 200 watts. All according to the EPA.)


4. Environmental gifts: Stumped on a gift for that neighbor or second cousin? How about a hand-cranked radio or flashlight? They're climate friendly, and outdoorsy types swear by 'em -- no need to worry about batteries. Also, consider gifts that encourage connecting with nature, like national park passes, binoculars, or a holiday wreath made of birdseed and fruit for birding in your backyard. For a bit of 'good feeling', purchase a TerraPass for your SUV-driving family-member with all the kids. They'll feel better about their impact (even if it isn't much consolation at the pump).


5. Reusable or recycled packaging: When you're stocking up for a holiday feast, look for products that go easy on the packaging, or come in reusable or recyclable wrapping. You'll save the energy that would be used to manufacture and ship the ecess packaging, and shrink your personal contribution to global warming.


6. Hybrid cars: Put a hybrid car on your wishlist this year! It might be a long shot, but if it works out you'll get a shiny new car and the satisfaction that you're really making a difference. A hybrid car saves big money at the pump, and is much more climate friendly than the car it replaces.


7. Remember to recycle: Holiday enertaining can leave behind lots of cans, bottles, and cardboard. Recycle whatever you can in your area to make your home more climate smart. Use recycled paper to wrap your presents. Or, if you're feeling artistic, don't buy gift wrap at all. Get creative with old newspapers, magazines, or fabric, and you'll add a little extra personalization to each present. And be sure to recycle your Christmas tree, which can be turned into mulch for the spring. Go to Earth911 to find a local tree recycler in your area.


8. Beat the traffic: Share a ride or take public transit while doing your holiday shopping. If you must drive to get to the shops, bring a friend or two along. Cars are responsible for 20% of the CO2 pollution the US produces, so carpooling really helps (And you'll get to swap gift ideas with your shopping buddies.)


9. E-mail: Instead of mailing holiday cards and letters to loved ones, try using e-mail. You'll save paper -- and the carbon-sequestering trees it is made from -- and reduce emissions from delivery vehicles. You'll reach your friends and family faster, too. While you're at it, browse through NRDC's Earth Action Center and send a heart-warming message to your elected officials expressing your concern about global warming, air pollution, and other environmental issues.


10. Give a gift: Another way you can make a difference is with a gift to NRDC (or an environmental stewardship organization close to your heart). A membership makes a great gift for an environmentally conscious friend or relative, or a great treat for yourself -- either way, you're giving the Earth a gift too.


And remember, recycle, reduce, rejoice this holiday season!

Friday, August 31, 2007

Green Building Success Story

I've been reading a report by the World Business Council for Sustainable Development called "Energy Efficiency in Building: Business realities and opportunities". It's a 38-page report on... well, energy efficiency in buildings. (Summary reports tend not to be very creative with their titles) Most importantly, though, it provides insight on why the building industry is slow to move forward into sustainability. To cite some comments:

1. Building is too multi-disciplinary and the key players tend not to interact. Local authorities work with developers and owners; the owners work through agents with the end users and the developers. The developers commission designers, engineers and contractors. The capital providers talk to the developers. Most have short-term interests, the end-users have very little say in decisions, those commissioned by the developer only communicate if they are integrated, and those that foot the bill for energy-efficient measures perceive that they're not receiving the benefits. All this results in decision-making "islands" which means ineffective communication and overall inefficiency.

2. Fully integrated design-build projects are perceived as more costly. Developers believe competition results in lower bids and tend not to be interested in a cooperative design/build approach, though DB often results in improved building performance, lower costs, and fewer disruptive changes.

3. Actual cost v. perception: When asked "how much more do you think a certified-green building would cost relative to a normal building", respondents from around the world answered approximately 17% more. The actual cost around the world? Closer to 5%.

4. Overheard from an academic in Japan: "The biggest barrier is that investors have the final decision-making authority on buildings and, under current circumstances, they are pursuing profit maximization. Sustainable building options conflict with profit maximization."

5. Four main barriers for decision-makers in the building industry: Personal know-how, business community acceptance, supportive corporate environment, and personal commitment.

6. When asked about driving change, most leaders suggested they were somewhat willing to drive change, but only if the measures prove to be "tried and tested". Very few business leaders were willing to step up and be risk-taking leaders in the industry.

7. 84% of total building energy is typically consumed during the use phase, assuming a building life of over 50 years. Buildings with a shorter life therefore consume more embodied energy. Buildings need to last longer and utilize higher-performing systems to make this possible.

8. Despite stated interest of real estate managers in energy efficiency, a 2007 study found that only 2/3 of companies tracked energy data, only 60% tracked energy costs, and only 30% included energy efficiency requirements in RFPs.

9. Levers for change: Adopt a holistic building approach, Make energy in buildings more valued, education and motivate.

Here's a light at the end of the tunnel... Cast studies and success stories are often the pivotal piece of information required to tip someone to build green. Here's a wonderful one:

Council House 2 in Melbourne Australia:

It's a ten-story office building for the City of Melbourne's staff opened in 2006. It was designed to copy the planet's natural ecology, using the 14-hour solar cycle and uses rainwater to power, heat, cool and supply water to the building.

"The north facade has 10 dark-colored air ducts that absorb heat from the sun. The hot air rises, taking the stale air up and out of the building. The south facade has light-colored ducts that draw in fresh air from the roof and distribute it down through the building. The west facade has louvers made from recycled timber that move according to the position of the sun and are powered by photovoltaic roof panels."

Here's the best part:

The building consumes approximately 35kWh/m/year. Compared to the previous Council building (c1970), this equals savings of:


  • 82% electricity consumption

  • 87% gas consumption

  • 72% mains water supply

Financial savings of $1.96 million dollars annually.

Spread the word!