- What are the US's annual carbon emissions? How do they stack up against other major polluters?
- How many kilowatts does the US use annually?
- How many KWH does the average home use every month?
- How large would a solar array have to be to provide electricity for the entire US (let's ignore the storage question for this one)?
- How many watts of power does and average household use each year?
- How many average solar panels would be required, if working continuously, to meet all of a house's power requirements (assume ideal conditions and assume water is heated separately)?
- How many watts of power/mile are consumed by an electric car driving at 25, 45, and 60 miles/hour?
- Could one massive wind turbine produce enough energy to power a single household?
- How much power could one produce riding a stationary bicycle type power generator?
- How much CO2 does a lawn mower produce? a weed whacker? a rototiller? Leaf blower?
- How much oxygen does an average sized city tree produce? And how much CO2 does it consume? And how many trees are needed to provide enough O2 for one person?
- How is a unit of carbon measured when calculating the cost of manufacturing it?
- Describe an example of how embodied energy is used to justify a purchase?
- Is the energy required to recycle the different materials justifiable, vs. the energy used to produce the same product with new materials?
Friday, May 16, 2008
Monday, May 5, 2008
Anyways, I always thought it would be cool if someone smarter than me put together the *real* cost of living farther out from where you work. Certainly you pay more money for your house if you live nearer to the city, where most jobs tend to be. But at what point does paying high prices for in-city homes outweigh the benefits of being close to work? And at what point does all the driving and commuting outweigh the savings one might get from buying a less expensive home farther out?
Well, the folks at the Center for Neighborhood Technology have finally put something out that lets people measure some of the costs of high priced homes versus a high priced commute.
The site is pretty cool, as it lets you view things like the average cost of housing + transportation for neighborhoods in some of the country's more populous regions. For example, I can see that living in Issaquah (a suburb of Seattle) has a similar cost of housing + transportation to living in my neighborhood in Seattle. And costs being equal, that tells me that I could make my decision on where to live based on the nearness of my place of employment, since that will cause me less commuting stress.
Now, the information is based on 2000 census data, and as a result it's not very current. I also don't think it takes into account the current cost of gas, which could make some locations far from centers of employment much more expensive than what the map shows. But it's a useful tool for comparing one area to another.
Here's the link: http://htaindex.cnt.org
Wednesday, April 30, 2008
New list of Seattle's Green Tech companies
Seattle's 35 "green tech" firms
Wednesday, April 23, 2008
Rebates for installing Solar in WA
The Seattle Times had a few articles on installing solar panels in the paper a while ago, which I was happy to see. One of the articles had this little nugget that was news to me:
"...the state has new production incentives for utilities to pay solar owners 54 cents per kilowatt produced from solar modules and inverters (which synchronize electricity collected to the grid) made in Washington. For a 3-kW system, that would be roughly $2,000 a year, Nelson said. (A new factory is being built in the state that should provide the modules later this year.)Some further research reveals the following:
"With those higher payments and other federal tax breaks and state incentives, owners can effectively recoup their investment in seven years once the factory-built panels are available in our state, Nelson said."
- Your system must, of course, be grid-tied
- The 54 cents/kwh payment expires on June 30 of 2014, so if you acted right now to get a 3000 kw system installed on your home (to the tune of $20-30k), you could potentially recoup $2k/year for the next 6 years only.
- The 54 cents/kwh is based on a base rate of 15 cents/kwh, with some multipliers tacked on (2.4x if you have solar panels manufactured in WA, and 1.2x if you have an inverter manufactured in WA).
- The rebate payment is capped at $2k per year, so you wouldn't benefit from installing a system large enough to generate more than $2k in rebate money (I'm not saying you shouldn't go big, of course...).
Here's a good explanation of the incentives: http://www.solarpowerrocks.com/washington/
Friday, April 18, 2008
Recycling businesses
- Construction waste
- The Re-Store here in Seattle takes construction materials it thinks it can sell again (used windows in good shape, doors, flooring, etc.). There's alot of trash in the trash-to-treasure cycle here, so owners have to be pretty discerning about what they take in.
- There are other businesses that can actually take construction debris, like wood, and grind it up into pulp or particles to be used somewhere else. [Need some examples here]
- Yard waste:
- How often have you done yardwork and ended up with a huge pile of weeds and sod, a big ole pile of dirt, or chunks of concrete? Don't you hate the prospect of having to pay someone to haul this away, or even worse, load it up in a truck yourself and take it to the dump? It would be cool to find a way to make hauling this stuff away worth someone's time and effort...
- Computer parts:
- Places like Re-PC in Seattle will take your old used computers and computer components and sell them to other end consumers. They also serve as recycling centers for things like CRT monitors that nobody seems to be able to get rid of these days. They usually charge a fee for recycling monitors.
- Extracting metals and other materials from computer waste - this happens alot in places like China and India where the labor to separate valuable parts is cheap, and the oversight into working with hazardous materials is lax, to say the least.
- Household garbage
- In Seattle, we can recycle glass, cans, paper and food waste by just putting these items out for pickup by the city's waste management services. But there's still alot of crap that gets thrown out that just ends up sitting in landfills. I wonder what this is, and if there's a way to turn it into something useful. [Note: Pyrolisis machines like the one from Clean Solutions Company can dispose of some of this waste]
- Wastewater:
- In cities, most of our wastewater goes to treatment plants. This is how we want it for really nasty stuff, like human waste, but the reality is that we also send alot of "just barely unclean" water to treatment plants, and this water could be used on our own properties. Systems that recycle water within a household are typically called greywater systems, and can take waste water from your shower and use it to flush the toilet, or water the lawn. The use of greywater systems would reduce the energy needed to process wastewater and in the case of using greywater to water your lawn, it would allow the earth to percolate and purify water. This transfers some of the water treatment burden from wastewater systems to the earth (which does it for free. Note that a homeowner would need to be careful about what soaps/chemicals/etc. are put into the greywater systems since whatever goes into the greywater system could end up in the groundwater, so it does require some changes in habits. I wonder if someone has found a simple greywater system that can be installed in new houses? That might be an opportunity for someone interested...
Wednesday, April 16, 2008
Green Tech or Clean Tech?
http://www.cleantechblog.com/2007/07/cleantech-vs-greentech.html
In a nutshell, it appears that Cleantech was coined by some VC folks who did alot of thinking about how to position their efforts (as the post indicates, saying you're part of the "energy and environment" sector was awkward). Greentech was odd for various reasons - too political in some ways ("green" sounds too far-left leaning, perhaps), and, to lift a quote from the post, "who wants green air or green water?".
Anyways, our blog uses Green Tech, and we did an entire 10 seconds of thinking on the name. So take that.
Wednesday, April 9, 2008
Company Research: V2Green
Here are some links for my research into what V2Green does. If I wasn't lazy, I'd summarize this for you, but just like in school, it's better if you read/hear all the supporting material as opposed to just reading the Cliff's Notes:
- The best info source I've encountered is a conf call between David Kaplan, CTO and Founder of V2Green, and Lyle Dennis of GM-Volt.com (a fan site for the Volt). Here's a synopsis of Lyle's conversation with David Kaplan and the associated audio.
- Brief article from USA Today about how utilities are starting to prepare for the eventuality of massive amounts of people plugging their EV's into the grid.
My Point Exactly
Ted Bernhard, Managing Director of the Stoel Rives Energy Ventures Group, blogged about the Northwest's straggling clean-tech investing scene.
Read the rest of the article here:"I continue to be struck by the fact that there is enormous regional, national, and global institutional investor interest in clean tech, a lot of high quality, clean tech companies and deal flow in the Seattle, Portland and the Northwest, a wide range of new angel organizations focusing on cleantech in the region and a boom (verging on an overly exhuberant bubble) among bay area venture capitalists, yet there is so little or no activity in Oregon and Washington -- the supposed cleantech leaders of the nation."
http://blog.seattlepi.nwsource.com/energy/archives/125006.asp
Other Companies of Interest
Electric Vehicles:
- Th!nk - (also called Think) Norwegian electric car manufacturer (see more complete info on wikipedia here). They have some really cool ideas for their cars, including local assembly shops to cut down on transportation costs, and a monthly fee that covers the battery pack and a communications service so that you can communicate with the car ('hey car, I just found out I have to go to a meeting 20 miles away - how much juice do you have?'). The monthly fee for the batteries has a dual advantage in that it allows one to lease the batteries which cuts down on the initial cost of the car, and it also allows you to exchange the batteries for new ones at no add'l cost when the old ones wear out. Think has a deal with Tesla to buy Tesla's battery systems.
- GM-Volt.com - awesome fansite for the Volt. Lyle Dennis is Volt fan who has created one of the best sites for info on the Volt.
- Tesla - high end electric sports car. Tesla is cool because they are focusing first on a high end car for people with alot of $$, and will parlay success there into a car for the masses.
- Miles Electric - US-based manufacturer with plans to release a high-speed sedan with a 100+ mile range.
Solar Solutions:
Tuesday, April 8, 2008
Finding Green Jobs in Seattle
- Seattle Greendrinks
- About.com's Green Jobs Search
- Greenjobs.com
- SustainableBusiness.com
- JustMeans.com
- Renewable Energy World
- Top 6 paying jobs in green tech
- Interesting salary search engine
- Might be some stuff at vault.com, but I didn’t have time to register and check it out.
Local Seattle companies that deal with green technology
- 3Tier - create maps for wind, solar and wave energy assessments
- Global Energy Concepts - clean energy consultancy
- Infinia - actually these guys are located in Spokane, but they're the only solar technology company I can find in WA
- Imperium Renewables Seattle-based biodiesel company
- Verdiem - products that reduce PC power consumption at locations with alot of PCs (an office, for example)
- AltaRock Energy geothermal startup - no content on page
- PowerIt Solutions intelligent energy management products for buildings
- V2Green manage communication between the plug-in EVs and the grid
- Optimum Energy develops networked building control applications and products to reduce energy consumption in commercial buildings
Sources for Green Tech news
- CNET's excellent Green Tech Blog
- Mr. Cleantech - local VC's blog on clean technology
- WSJ's green biz blog
- EV World - Great site for news on electric cars
- Seattle EV Association
- GreenTechMedia - good source of financial/funding news.
- Earth2Tech blog - daily updates on what's going on in the world of clean technology
Purpose for Seattle Green Tech blog
Background and Goal
We live in a very progressive state, and an even more progressive city. While we’re blessed with this, we are also cursed with very cheap, and relatively clean (depending on your point of view) electric energy. This “curse” means that people have little incentive to explore solar or wind energy options. I am confident that Seattle will be at the forefront of greener energy usage, and I want to be part of that industry here. In order to do that, I believe we need to get involved in the industry locally now, so that we’re experienced and knowledgeable when the industry really takes off.
So, I’d like to start a discussion about the green energy industry with others because a) I don’t know much about the industry, b) I’d like to find ways to get connected locally with the industry, and c) I’d like to figure out what jobs are local that have to do with clean technology.
Here are my initial thoughts on boundaries (e.g. things I want to explore, versus things I don’t care about right now). I’m not saying I don’t want to learn about other alternative energy options, so don’t view this as me trying to set limits on anything, but there are some things I care about more than others.
- I’m primarily interested in electric energy. I’m not that interested in biofuels, ethanol, hydrogen, etc.
- My ideal next career would be with a company that produced clean electric energy (e.g. solar panel company or related), or used clean electric energy to offset some other dirty energy (electric cars, for example). Some ideas:
o Build infrastructure for electric cars
o Build software applications for electric cars (ala the Think City approach to possibly allowing 3rd party apps onboard the vehicle)
o Be part of a movement to make solar electricity or solar hot water heating an affordable option for average homeowners
Anyways, for now I'll use this blog to post information that I find useful as I explore green technology in Seattle.