By Alexander Villafania INQUIRER.NET In the aftermath of perhaps the worst typhoon that struck Metro Manila in recent years, environmental groups are blaming climate change for the effects of âOndoyâ (international name âKetsanaâ). In different statements, the World Wildlife Fund (WWF) and Greenpeace warned that such a disaster could be repeated unless comprehensive measures are taken immediately. Greenpeace, in their statement , reiterated their call for industrialized countries to put in money to fund climate change measures especially in disaster-prone countries, including the Philippines. Greenpeace Climate and Energy Campaigner Amalie Obusan said in a statement that the disaster in the Philippines had to happen in between two international climate change meetings, the recently concluded G20 Summit and the upcoming United Nations Framework Convention on Climate Change (UNFCCC) Summit. âWhile world leaders are pussyfooting on their commitments, countries like ours are left to experience the ravages of climate change,â Obusan said. In a separate statement, WWF-Philippines Vice Chair Jose Lorenzo Tan is calling for the reduction of fossil fuel consumption, which is being blamed for contributing to climate change. Tan said the country is not equipped to take the brunt of another similar disaster and so measures must be taken to help mitigate its effects. âPlanning must start from scenarios of the future, rather than from the present. Collectively, we must identify 'next practices', because today's 'best practice' will no longer suffice. We must start small, learn fast and scale rapidly,â Tan said. The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) reported that Ondoy dropped the heaviest rainfall in Metro Manila in recent history, a record 34.1 centimeters (13 inches) of water in less than six hours. The previous record was in 1967 with 33.4 centimeters of rainwater over the course of 24 hours.
September 2009 Archives
By Dennis Posadas THERE are interesting developments in Chinese cleantech, and I will discuss some headlines of interest that have been reported recently. While I will continue to write about Philippine cleantech efforts in renewables and energy efficiency, it is also important to take note of what is happening in the region, and maybe some implications for us. The first is a news report in the New York Times that First Solar, a company that makes thin film solar photovoltaics, bagged a contract to build the world’s largest solar installation in Mongolia. The rated capacity of the solar plant will be 2GW (or 2,000 MW if you prefer), and will be built using the non-silicon technology of First Solar. Thin films like Cadmium Telluride are typically deposited on surfaces like glass, and do not require silicon. The upside of thin films is that you can make it into windows and basically coat a building with it, at a cheaper price. The downside is it is only around 7% efficient, as compared to 11% efficiency of silicon-based solar photovoltaics, which means you need more cells and you need more space (e.g. land). Another is that Cadmium is poisonous, and so while there is no danger of leaching for the active life of the solar cell, the cells have to be disposed of properly once these are past their useful life of around 25 years. The implication for us is that this particular project, because the winner was a thin-film solar technology (which we do not make here as far as I know) did not result in additional business for the local Philippine operations of SunPower and Solaria, which make silicon-based photovoltaics. However, if the 2GW China project is an indication of future opportunities, maybe it will be good for the industry as a whole. The second, featured in both in MIT Technology Review and the New York Times, is what the Chinese are doing with clean coal. It appears that most of the plants being built in China these days are advanced technology clean coal plants, which do not burn the coal directly (which releases carbon dioxide) but instead, using an old pre World War II process, converts coal into synthetic gas (similar to natural gas). China has the world’s third largest coal reserves, after the US and Russia. US Energy Secretary and Nobel Laureate Steven Chu has promised to prioritize its adoption in the US as well. It is important to stress that while the carbon dioxide emissions have been cut by a large percentage, these new plants still emit carbon dioxide. The Chinese have even built a small experimental plant to remove the carbon dioxide from power emissions, and use it for softdrinks carbonation. What a creative way to do carbon capture and storage! Store it in our bodies when we drink it. Of course, we will eventually release it back to the atmosphere. But seriously, the Chinese are also looking at Carbon Capture and Storage (CCS), although I have not seen any major advances yet in China in this arena. The implication here for us is that if the Chinese can develop a better way, or an alternative to CCS that cuts carbon emissions of coal, then maybe coal can have a second life, particularly since we have a lot of it. But that is, in my opinion, still in the realm of research. I do not expect to see carbon capture and storage in the Philippines for a long time; it is still very, very expensive, unless someone comes up with a breakthrough. In wind, China has doubled its capacity in the past few years and will become the world’s largest market for wind equipment. Interestingly enough, India, through a company called Suzlon Energy (you may have seen their commercials on CNN) is now giving US and European wind players like GE and Vestas a run for their money. Locally, I think we should pursue the development of micro-wind and micro-hydro systems. In electric vehicles, Fortune recently did a profile on a company called BYD (Build Your Dreams) which Warren Buffett recently invested in. In solar photovoltaics, Suntech, a Wuxi-based company which was started by local government funds is now one of the largest solar cell manufacturers in the world. The key learning for us here is that Suntech was started by Chinese local government funds, not even national government funds. The figure mentioned in Fortune was $4m, which is doable even here. Maybe that is a learning we can use, but I am not sure if local laws will permit that. Finally, the UK Guardian recently reported that US President Barack Obama may be in China this November to sign a major US-China cleantech alliance accord, prior to the December Copenhagen climate summit. While it is hard to convince the US Senate, which has to contend with a strong oil, gas and coal industry lobby, to go green, it appears that the Chinese see green as a way, not just to improve their worldwide image in the climate arena, but to actually make some serious green (as in greenbacks) out of it. The question there is where does that leave us? __________________________________________________________________________ Dennis Posadas is the editor of Cleantech Asia Online, and the author of Jump Start: A Technopreneurship Fable (Singapore: Pearson Prentice Hall, 2009)
By Dennis Posadas While I appreciate the enthusiasm that groups like Greenpeace and WWF about enabling as much clean/renewable energy as we can put into the system, given that we have a new renewable energy law, there are also a few mindset changes we need to put into place. I am all for renewable energy; however, as a trained engineer, I also realize that there are some hurdles that need to be overcome. First is, some renewable energy sources, like solar and wind, while abundant, are also intermittent. The sun doesn’t always shine, and the wind doesn’t always blow. On the other hand, cogeneration and biomass plants, which are clean sources, can be stable if enough heat or biomass material is forecast and planned. For solar and wind, if we want to use it for 24x7 use, we need to make sure that there is an energy storage mechanism of some type. The most common energy storage device is of course a battery. For bigger solar and wind systems, running in the megawatt range, batteries would have to be connected together, so it probably won’t be practical. Concentrated Solar Plants (CSPs) that employ banks of mirrors in the desert use some type of liquid like molten salt. Another possibility is to use pumped storage, like in Lake Caliraya. When power is available, it is used to pump water up an elevated lake. During nighttime, the lake water can be released to drive a generating turbine. Other schemes involve compressed air (in the US), or as in the case of some wind systems, natural gas turbines. But for many systems, the storage technique they employ is to simply connect the renewable energy system to the grid. Now as we increase the percentage of renewable energy systems that connect directly to the grid, we have to remember again that these are intermittent. You can’t exactly tell the sun to shine exactly at 6:00am, or the wind to start blowing at 9:00pm. So there has to be a way to prevent blowups of circuit breakers or fuses, a way to plan when each energy source will come on stream. There is a role for software and intelligent grid systems that work with meteorological information to determine that there is a high/low likelihood that the wind/sun will be available at a certain time. The grid itself, and components will have to be redesigned to take into account the higher occurrence of intermittent turn-on and turn-off of power sources, many of them being renewable. Appliances may need to have chips in them, telling them that the power at a given hour is mostly coming from renewable sources, or not. Meralco’s plan, for example, to offer Internet over broadband lines, is indicative of this. The common perception is that they plan to mainly utilize this to offer broadband services to the public through their power lines. Actually, it is not as simple as that. The Internet over power lines can also be used to command and control equipment, such as chillers in malls, to turn on or to idle at a certain time. The grid needs to be intelligent, to handle the intermittent nature of clean/renewable energy systems. There will be a lot of new capabilities, already being experienced in places like California and Europe, that we will soon have here. Our electric meters (“kontadors”) for example, will run backwards and forwards. So if we decide to install solar panels or wind turbines on our roofs, not only can we be consumers, we can also be mini power producers supplying to Meralco. The amount we sold, is then subtracted from the amount we consumed. The more citizens and private industry, as well as government, invest in these mini and private renewable energy systems, the less need there will be for big, and often carbon emitting power plants. In other words, power generation will be decentralized to many small renewable power producers, as opposed to a few large ones. Now who will pay for that? Some cities in the US consider solar panels as part of the house (roof) and allow citizens to simply add a little extra to their real estate tax, and amortize the solar panels over 25 years. The payment can actually be taken from the savings generated by the panels, so in effect a no-cash out scheme is feasible. Are we ready for that? We all want reduced carbon emissions. But we don’t get there by simply joining token Earth Hour or Earth Day celebrations. We also need to do some work, and take the time to educate ourselves. ___________________________________________________________ Dennis Posadas is the editor of Cleantech Asia Online, and the author of Jump Start: A Technopreneurship Fable (Singapore: Pearson Prentice Hall, 2009)
By Alexander Villafania INQUIRER.NET After over 50 years, mathematical genius Alan Turing could get the justice he deserves after being prosecuted as a homosexual. Two separate online petitions for an apology by the British government were set up by supporters of Alan Turing, the British cryptanalyst who broke the codes of the legendary German Enigma machines during World War II. The first petition was created by computer scientist John Graham-Cumming. In his blog Cumming said he wanted all records about Turing to be released by the British government. He also said he wanted Turing to get a posthumous knighthood. So far, his petition has gathered about 22,800 supporters. The deadline for the end of signing the online petition is on January 20, 2010. The second petition demanded an apology from the British government for Turing, who was alleged to have been prosecuted because of his homosexuality. The second petition was started by Cameron Buckner in support of Cummingâs first petition. So far, Bucknerâs petition has 8,700 signatories. Based on the records of the British National Archives British National Archives Turing joined the British governmentâs Government Code and Cypher School during World War II specifically to decipher the Enigma machine used by the Germans. His paper, âOn Computable Numbersâ led to the creation of the âTuring machine,â a thought process experiment that simulated the logic of a computer algorithm. Turingâs work on computational algorithms thus led to future development of computer science concepts, as well as the modern computer. But in 1953 Turing was arrested for being a homosexual and was subjected to chemical castration using estrogen injections. He died by consuming a cyanide-laced apple the following year.