Algal bloom , upper Turitea dam January 2006
The Algal bloom can be prevented in the following ways:-
1) Algae need three things for optimal growth: light, nutrients and high temperatures. Therefore, By Lowering the nutrients, light and temperature available to the blue-green algae in the water supply will help reduce algal growth. The speed at which water is flowing and mixing is important in controlling light and nutrient availability to algal cells.
2) Keeping livestock away from the farm dam or water supply.3) Avoiding run-off into water supply from fertilizers and pesticides
4) Taking some water treatment measures BEFORE a bloom starts; and if practical - changing mixing patterns or covering the dam/water supply to screen out light may help.
Above picture : the c400 litres of oil from the gearbox can catch fire and fall to the ground while burning, setting fire to vegetation.
May 30, 2008 in Daily Globe
A short movie of a Wind Turbine on fire in Wulfshagen/Germany on May 16th, 2005. This fire is just one of many in the same location. Fire fighters can only wait helplessly on the ground and let these fires burn out. Even wind farmer John Love , who has posted a comment under the nickname of "Lofty" , admits turbines catch fire.
incinerating the Tararua ranges within the city boundary, putting the environment, our water supply
and life and property at risk ?
Well no thinking person would. After all this is a university city isn't it ?
Electrical energy demand likely to decrease as the world faces a severe economic contraction.
NOVEMBER 21, 2008 Surprise Drop in Power Use Delivers Jolt to Utilities
An unexpected drop in U.S. electricity consumption has utility companies worried that the trend isn't a byproduct of the economic downturn, and could reflect a permanent shift in consumption that will require sweeping change in their industry. Numbers are trickling in from several large utilities that show shrinking power use by households and businesses in pockets across the country. Utilities have long counted on sales growth of 1% to 2% annually in the U.S., and they created complex operating and expansion plans to meet the needs of a growing population. [...] The data are early and incomplete, but if the trend persists, it could ripple through companies' earnings and compel major changes in the way utilities run their businesses. Utilities are expected to invest $1.5 trillion to $2 trillion by 2030 to modernize their electric systems and meet future needs, according to an industry-funded study by the Brattle Group. However, if electricity demand is flat or even declining, utilities must either make significant adjustments to their investment plans or run the risk of building too much capacity. That could end up burdening customers and shareholders with needless expenses. To be sure, electricity use fluctuates with the economy and population trends. But what has executives stumped is that recent shifts appear larger than others seen previously, and they can't easily be explained by weather fluctuations. They have also penetrated the most stable group of consumers -- households.
The Turitea wind factory is potentially an extremely expensive white elephant.