7 OCTOBER 2007
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2006 FEATURES |
IT SEEMS having many windmills could have some drawbacks. “I’d be driving with this nice view of the beach and I’d see a turbine here and a turbine there, destroying the view,” laments one European tourist here.
While First-World residents may have grown tired of seeing windmills everywhere, tourists and Bangui locals relish the sight of this town’s 15 silent giants, each of which has a relatively modest 41-meter rotor. After all, they sit on a beach that was mostly desolate, save for a handful of houses on the road leading to the site. And when their arms rotate, that means additional power for Ilocos Norte; according to NorthWind, the windmills can produce as much as 74,482 megawatt hours per year. “The residents like the windmills so much that the vendor in public market refused to make me pay for the hangers I was buying when I moved here,” says Tiatco, who is from Pampanga. To this day, he is sometimes still offered vegetables for free. Such hospitality could perhaps be traced partly to the fact that NorthWind also provides employment, tapping locals for some work required for the upkeep of the substation and cables. The odd jobs it offers are obviously better alternatives to the backbreaking work of collecting pebbles at the seashore, a Bangui enterprise that fetches locals P50 for every sack. Local real estate values are also up, as the coming of tourists has begun to generate business, albeit small-scale. The sprinkling of houses along the dirt road leading up to the windmills have bottles of soda ready for thirsty travelers. Another seemingly tentative entrepreneur has laid out two bunches of garlic on a fence with a small “for sale” sign. “The windmills also made students want to study seriously,” says Tiatco. He adds with a chuckle, “They want to replace me.” While NorthWind has a policy of giving Bangui residents first crack at jobs available at the substation, the company has had to “import” engineers from other towns of Ilocos Norte, as well as from Isabela and Mindoro. NorthWind collects an average of P30 million to P40 million every month from INEC. But as part of its social-responsibility program, the firm sets aside a centavo for every kilowatt hour it produces for the host community. It also offers a three-percent discount if INEC is able to pay within 10 days after receiving its bill.
THE WIND, however, does not always blow well for the windmills. During our hot summer months, power production is at its lowest because there is not enough wind to turn the blades. At zero to 3.5 meters per second wind speed, the windmills generate no electricity. But production peaks during stormy months, when the wind of storms up to signal number two are well absorbed by the blades. The windmills shut down automatically, though, when the wind reaches the maximum of 25 meters per second or 90 kilometers per hour. Also, storms do not necessarily guarantee the turning of the blades. Last week, for example, the wind farm generated much activity during Typhoon Hanna. With the entry of Typhoon Ineng, however, Bangui found itself buffeted by two storms that sucked out air. “It created a vacuum in our area,” says Tiatco. “The windmills were not moving.” This is one weakness that for now, rules out full dependence on non-fossil sources of power. Or at least on wind power. “Only God knows how much (energy) will be generated today or tomorrow,” admits Tiatco. In the olden days, windmills had to be physically oriented so each faced the wind. Today computers do most of the work, requiring minimal human intervention (mostly when a cog malfunctions) to operate and maintain the windmills. The windmills of Bangui, like their European cousins, can on their own face the wind where it is strongest. The system is highly computerized that an engineer in Denmark, home base of the windmill manufacturer Vestas, can control the giants of Bangui. “The blades are the most high-tech part of the wind turbines,” says Tiatco. The blades are made of wood, carbon fiber, and fiberglass, making them light in weight but strong enough to absorb wind power even during storms. The blades tilt to an awkward angle, looking much like a dead starfish, when something breaks down. Each tower has a four-meter wide base, wide enough to accommodate men and equipment and a ladder leading up to the tip of the windmill if human hands are needed to fix a mechanical problem. Bangui folk also use the windmills as shelter from the sun as they wait for fishermen to arrive with their catch. For the more adventurous lovers wanting privacy, the windmills have also proven to be an effective buffer from prying eyes, since most parts of that particular stretch of the beach are deserted most of the time. For now, the towers are all gleaming white. Some visitors in the past, however, had been unable to resist writing on the base of some of the windmills. Some of these have thus been painted over after visits by vandals, resulting in slightly different shades of white, as the original special paints used to inhibit rusting because of the salt in the air are not available locally. When the time comes for another fresh coat of paint, the chore would be like painting several buildings, and a contraption such like a crane to carry painters up would have to be used. NorthWind has begun constructing five additional windmills in Bangui, to begin operating in June next year, upgrading the wind farm’s power generation to 33 megawatts. But this Ilocos Norte town may be losing its monopoly on wind-power use in the country. NorthWind has begun to gather wind data in nearby Cagayan province, for another possible wind farm there. Batanes is being eyed as yet another site. (A windmill project by the Philippine National Oil Company in Burgos, another Ilocos Norte town, was scheduled to be finished in 2003, but so far remains incomplete.) In the meantime, Northwind is gearing up for more inquisitive tourists in Bangui, where it will soon open a visitor’s center, complete with a cafeteria, conference hall, and gift shop. But Tiatco, who has become adept at handling questions from the most peculiar to scientific, says he and his handful of engineers will still be around, ready with answers that, well, will not be blowing in the wind.
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