
A view of the Maipo river valley, much of the plant life here depends on the river. (c) David Gorski
My name is David Gorski and I am working on a research project called “Patagonia without Dams.” The goal of this project is to promote awareness of the rising issue of hydro-industrialism in the country of Chile, which I am currently traveling to with New River Academy. Chile is seeing a rapid increase in population in cities such as Santiago. Also, recent climate changes in South America have decreased the average snowpack in the Andes Mountains and therefore decreased the amount of water available for this rising population to use. These two changes are making Chilean rivers increasingly vulnerable to hydro-industrialism.
The Rio Maipo and the Central de Paso
When I set out to research hydro-industrialism on the Rio Maipo, NRA’s first destination, I knew immediately that this river would be under particular stress simply because of its location. The Rio Maipo runs through a steep and constricted canyon area about 45 kilometers east of Santiago. This geological phenomenon creates quality whitewater and a beautiful surrounding wilderness which is very valuable to outdoor enthusiasts and the tourism industry. On the contrary, the natural energy of this river as it races toward the Pacific can easily be converted into power, power on many different levels, power which can easily be abused. An interview with Lorenzo Andrade Astorga, a leader in eco-tourism in the Miapo River Valley, tells the story of the struggle for water and land in the Maipo river valley.
Lorenzo’s family has owned land on the Rio Maipo for eighty years which they now use for a rafting company. They’ve been fighting to protect their valley since the times of communism and Pinoche. In the 1960’s the Rio Yeso, a tributary of the Maipo, was dammed by a Spanish company called Aguas Andinas. This was a time when Spain owned all water rights in Chile. Shortly afterward, the country was freed of communism and gained its water rights with the rule of Pinochet. This eighteen year dictatorship which ended in the early nineties kept the economy up to par but also saw much political violence. Thousands of people were killed through genocide by Pinochet, and Chile didn’t truly become a stable country until about eight years ago.
Ten years ago the Chilean government attempted to build a gas line to Argentina alongside the Rio Maipo. When the Astorga family refused to sell their land for this project, the Chilean government tried to take it by force. “We won” said Lorenzo. When the police came after them, they cut down the bridge that lead to their home on the other side of the river. They tried to come in with a helicopter but the mountainous landscape didn’t offer much space for landing other than a little soccer field which was fearlessly defended by Lorenzo and his family.
After growing up here, Lorenzo graduated from Universidad Andres Bello with a degree in eco-tourism and education. He is now teaching Spanish for New River Academy. When I asked Lorenzo about hydro-electricity on the Maipo, he first described the two different kinds of hydro-electricity. One was created by dams and the other by what’s called a central de paso. The central de paso takes water from a steep river, runs it through underground turbines to create electricity, and puts it back out into the river. It virtually dries the section between the input and output. In the 1960’s a few hydropower plants like this were developed on tributaries of the Maipo which take up limited space.
There is a plan for a central de paso on the Maipo which will dry the entire whitewater section. A Canadian company called AES Gener is attempting to build this and use the electricity for a mine in the north of Chile. Most resources taken from this mine will be exported from Chile. This obviously doesn’t benefit the country and many Chileans such as the Astorga family are fighting against it. They’re trying to declare the Maipo river valley as a national reserve. Recently, they made a petition for this which approximately 200,000 people signed. This reserve would protect the 85% of employment in the Maipo river valley which comes from tourism. Even so, this doesn’t seem to be the main reason that most Chileans want to protect this valley. “We do it for the nature more than anything,” said Lorenzo.
Lorenzo also discussed how Chile is the idealistic geographic location for many alternative, less intrusive sources for electricity. With a chain of active volcanoes running down the spine of the country, there’s tremendous opportunity for thermal electricity plants. Also, with almost 4,000 miles of coastline, Wave Power could easily be used to produce electricity all across Chile. These alternatives should certainly be enough to provide power to the growing country of Chile. Since Chile is now a relatively stable, responsible country; the only true threat is power-hungry agencies from the outside such as AES Gener. The only true threat to Chile’s resources is globalization.
The following is a link to Cascada De Las Animas, an ecotourism agency driven to protect the water of the Rio Maipo.
http://www.cascada.net/index_ing/index
Extensive information on all Chilean rivers will be available soon at www.chilerivers.org
Written by David Gorski