Renewable Energy Systems: The Choice and Modeling of 100% Renewable Solutions
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From Henrik Lund
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Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (44 deleted Reviews; avg. rating: 4.3)
- Critical Reviewer (avg. rating: 4.2)
Least Trusted Reviews
We couldn't find any low-quality reviewsAnalysis Details
We discovered a total of 1 deleted Review for this product, with an average rating of 5. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Take-Back Reviewers
7 of the 8 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
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from the same brand
5 of the 8 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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- Created on high-volume days
Read more about our Rating Trend test.
1 of the 8 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
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- Have an overrepresented word count
Read more about our Word Count Comparison test.
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- Used substantial repetitive phrases
Read more about our Phrase Repetition test.
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- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
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- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.