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Posted by msmash from the shortchanging dept.
Wind and solar energy producers in Brazil have warned they are reconsidering future investments there after the national grid operator repeatedly capped how much energy they could deliver in the past year, which squeezed their profits. From a report: Brazil has made big strides encouraging companies to invest in wind, solar and other renewable power generation sources, offering generous financing and subsidies. But all the electricity they generate has taxed the grid. More than a dozen executives and industry representatives said renewable energy investments were less viable under the National Electric System Operator’s (ONS) current “curtailments” policy, which temporarily caps how much power ONS accepts from wind and solar plants.
The pressure has been most acute in northeast Brazil, a hot spot for renewable energy investment. There are bottlenecks in transmission lines carrying electricity to Sao Paulo, Rio de Janeiro and elsewhere in the more populous southeast region. ONS has managed the grid more cautiously since August 2023, when a power outage in the northeast spread over most of the country. That has meant more curtailments when electricity generation exceeds consumption or there is a lack of transmission capacity. ONS has said curtailments were not excessive, and were necessary for safety. The operator said its data shows only 3% of electricity generated was lost to curtailments last month.Volt Robotics, a power sector consultancy, analyzed ONS numbers.
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