
To Store Renewable Energy, Some Look to Old Mines
- Bias Rating
- Reliability
N/AN/A
- Policy Leaning
-10% Center
- Politician Portrayal
54% Positive
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Bias Score Analysis
The A.I. bias rating includes policy and politician portrayal leanings based on the author’s tone found in the article using machine learning. Bias scores are on a scale of -100% to 100% with higher negative scores being more liberal and higher positive scores being more conservative, and 0% being neutral.
Sentiments
N/A
- Liberal
Sentence | Sentiment | Bias |
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Reliability Score Analysis
Policy Leaning Analysis
Politician Portrayal Analysis
Bias Meter
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Center
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-100%
Liberal
100%
Conservative

Contributing sentiments towards policy:
57% : Pumped storage could help solve one of the biggest hurdles in renewable energy -- that solar and wind farms don't always produce electricity when it is needed.55% : Around the world, companies are seeking to repurpose old mines as renewable-energy generators using a century-old technology known as pumped-storage hydropower.
47% : Another reason to go with pumped storage, these companies say: For communities that have relied heavily on mines, often in rural or remote areas, the projects could ensure some local jobs and revenue remain after mining ceases.
*Our bias meter rating uses data science including sentiment analysis, machine learning and our proprietary algorithm for determining biases in news articles. Bias scores are on a scale of -100% to 100% with higher negative scores being more liberal and higher positive scores being more conservative, and 0% being neutral. The rating is an independent analysis and is not affiliated nor sponsored by the news source or any other organization.