|Ken Novak's Weblog
Purpose of this blog: to retain annotated bookmarks for my future reference, and to offer others my filter technology and other news. Note that this blog is categorized. Use the category links to find items that match your interests.
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Monday, December 23, 2002
U.S. GHG emissions drop: "U.S. greenhouse gas emissions linked to global warming fell by 1.2 percent last year, the largest decrease in a decade, due in part to slow economic growth and a milder winter, the DoE Energy Info Agency (EIA) said." Some facts:
- U.S. GHG emissions in 2001 were 11.9 percent higher than in 1990
- Total U.S. GHG emissions in 2001, including carbon dioxide, methane and nitrous oxide, totaled 1,883 million metric tons, down from 1,907 million tons in 2000.
- Of the total, CO2 is 84%, 1,579 mt, down 1.1% in 2001.
- Of the CO2, 400 mt or 25% are from vehicles.
- U.S. forests absorb about 246 million metric tons of carbon annually, equal to 15.6 percent of U.S. carbon dioxide emissions.
Radio Free Software
: The implications of GNU Radio
, making software to allow general purpose computers to do radio processing. "Since the days of Univac, computer programmers have written software to mimic the functionality of everything from mechanical calculators to videocassette recorders. Wireless communication devices -- radios, cellphones, televisions, etc. -- are merely the latest target, especially now that most carry sophisticated microprocessors." 4:13:28 PM
Bird? Plane? UFO? No, Stratellite: "Three companies are devising plans to send unmanned, spherical airships into the stratosphere to serve as relay platforms for two-way wireless broadband service. .. [The balloons] use GPS detectors and propulsion engines to keep each floating station locked at desired coordinates.. Sanswire will perform a demonstration in early 2003 during which a transmitter-equipped Kevlar balloon will ascend 10,000 feet, communicating with laptops on the ground. Molen hopes to deploy the first fully functional platform within 18 months, at an approximate purchase cost of $10 million. "We think this system can provide broadband to the continental U.S. for about $100 million. People have been coming from all over the world waving checks in the air at us." 4:01:41 PM
World Bank - Climate Protection Projects With A Human Face: As a part of its internal carbon-abatement program, the bank highlights "small-scale community-based projects in World Bank client countries that benefit the global environment .. and local communities." Some brief project descriptions are included:
Lessons learned from PCF so far:
Cost of CDM-like procedures:
Approximate procedural cost: $200-400K (half up front, half after commissioning)
Size of ER purchase from project: $2-3 million
Total size of project: $10-15 million (power projects ~5-10MW)
Small projects involving technologies such as PV, small wind, biomass, micro-hydro often
- have higher unit costs due to small size
- displace lower carbon intensity end-uses
- operate in riskier environments (e.g. remote areas)
BUT they represent majority of CDM opportunites for small developing countries incl small islands. To be competitive in CDM such projects need
- aggregation to reduce transaction costs
- streamlined/ simplified CDM procedures
Storing wind power as compressed air:
"A group of Iowa utility executives is studying whether it can build a $225 million electric-generating plant that would rely on wind turbines and stockpile its own compressed air to use on calm days. " 12:04:35 AM