[ad_1]

SANTIAGO, Chile — A floating island of solar panels is being tested in Chile as a way to generate clean energy and reduce water loss at mine operations, a cornerstone of the Andean country’s economy that uses huge amounts of electricity and water.

The experimental “Las Tortolas” power-generating island is being run by the giant Anglo American mining company at its Los Bronces mine, and the initiative comes as the government pushes to put Chile at the forefront of renewable energy use in Latin America and the world.

The 1,200-square-foot array of solar panels was inaugurated Thursday by Chilean Mining Minister Baldo Prokurica. Officials said that if the test is successful, the $250,000 plant could be expanded to cover 40 hectares, or nearly 100 acres.

The array floats in the middle of a pond that is used to contain the refuse from mining, known as tailings, and it is expected that its shadow will lower the water temperature and reduce evaporation by 80 percent. Thus, the mine would retain more of that water for its operations and could reduce the amount of fresh water it pumps in the dry mountainous region where water is a scarce commodity.

“With this system, we can make our fresh water consumption more efficient, in line with our goal of re-imagining mining and reducing Anglo American’s fresh water consumption by 50 percent by 2030, as well as the CO2 emissions by producing non-polluting energy,” said Patricio Chacana, Los Bronces’ vice president of operations.

If the yearlong experiment works as planned, the solar panel island could be expanded and new ones could be installed at other mining ponds. Experts say there are approximately 800 such ponds in Chile.

“It is an excellent idea for the traceability of the mining industry and especially in terms of more efficient use of water. This is a company that recycles 76 percent of the water it uses in its processes,” the mining minister said at the unveiling and he encouraged other mining companies to follow suit.

In addition, Prokurica said the Mining Ministry is working on a plan to improve the safety of the mine holding ponds, to guard against failures such as one at an iron ore mine recently in Brazil that unleashed a wall of mud that killed at least 186 people and polluted hundreds of miles of river. Many of the tailing ponds in the north of the country are near urban centers.

Los Bronces is about 3,500 meters (11,500 feet) above sea level and is 65 kilometers (40 miles) from the country’s capital, Santiago. In 2018, the mine produced 370,000 tons of fine copper and 2,421 tons of molybdenum.

Almost 20 percent of the energy currently produced and used in Chile comes from renewable sources, up from 6 percent in 2013.

rn{% endblock %}"},"start":"https://users.startribune.com/placement/1/environment/3/limit-signup-optimizely/start"},{"id":"limit-signup","count":12,"action":"ignore","mute":true,"action_config":{"template":"{% extends "grid" %}rnrn{% block heading_text %}Youu2019ve read your 10 free articles for this 30 day period. Sign up now for local coverage you wonu2019t find anywhere else, special sections and your favorite columnists. StarTribune puts Minnesota and the world right at your fingertips. {% endblock %}rnrn{% block last %}rn{{ parent() }}rn{# limit Krux pixel from https://www.squishlist.com/strib/customshop/328/ #}rnrnrn{% endblock %}"},"start":"https://users.startribune.com/placement/1/environment/3/limit-signup/start"},{"id":"meter-desktop-331","count":10,"action":"ignore","mute":false,"action_config":false,"start":"https://users.startribune.com/placement/1/environment/3/meter-desktop-331/start"},{"id":"PDA991499opt","count":9,"action":"ignore","mute":true,"action_config":false,"start":"https://users.startribune.com/placement/1/environment/3/PDA991499opt/start"},{"id":"limit","count":8,"action":"inject","mute":false,"action_config":{"template":"

rnrnrnrn

rn

rn

rn rn

rn t

rn SUBSCRIBErn Already a subscriber? Log in.rn

rn

All Star Tribune readers without a Digital Access subscription are given a limited number of complimentary articles every 30 days. Once the article limit is reached we ask readers to purchase a subscription including Digital Access to continue reading. Digital Access is included in all multi-day paper home delivery, Sunday + Digital, and Premium Digital Access subscriptions. After the 1 month Premium Digital Access introductory period you will be charged at a rate of $14.99 per month. You can see all subscription options or login to an existing subscription herern

rn rn

rn

rn

rn

rn

rn"},"start":"https://users.startribune.com/placement/1/environment/3/limit/start"},{"id":"nag","count":7,"action":"lightbox","mute":true,"action_config":{"height":null,"width":"630px","redirect_on_close":null,"template":"{% extends "shell" %}rnrn{% block substyles %}rn

rn{% endblock %}rnrn{% block page %}rn{#rnrn{{ limit - count - 1 }}rnrn{{ form.flow_form_open({nextAction: 'firstSlide'}, null, null, '_top') }}rn {{ form.btn('Save Now') }}rn{{ form.flow_form_close() }}rnrn

rnrnrnu2022 rnrnrnrn#}rn

rn

rn

You have {{ limit - count - 1 }} articles left

rn

rn rn u00a0u00a0u2022u00a0u00a0rn rn

rn

rn

rn

rn Save More Todayrn

Over 70% off!

rn

rn

rn

rn

99u00a2 for first 4 weeks

rn {{ form.flow_form_open({nextAction: 'firstSlide'}, null, null, '_top') }}rn {{ form.button('Save Now', 'btn nag-btn') }}rn {{ form.flow_form_close() }}rn

rn

rn{% endblock %}rnrn{% block last %}rn{{ parent() }}rnrn{% endblock %}"},"start":"https://users.startribune.com/placement/1/environment/3/nag/start"},{"id":"x","count":4,"action":"ignore","mute":true,"action_config":false,"start":"https://users.startribune.com/placement/1/environment/3/x/start"},{"id":"multi-start","count":3,"action":"fly_in","mute":true,"action_config":{"location":"bottom_left","slide_direction":"bottom","group_id":null,"display_delay":"0","collapse_delay":"10","template":"

rn

rn

rn

rn u00d7rn

rn

rn

From just

rn

$3.79 99u00a2 a week

rn Save nowrn

rn

rn

"},"start":"https://users.startribune.com/placement/1/environment/3/multi-start/start"}]};


[ad_2]

Source link

Leave a Reply

Your email address will not be published. Required fields are marked *