The diagrams below show the design for a wave energy machine and its location

Grammar and spelling errors:
Line 3, column 105, Rule ID: ENGLISH_WORD_REPEAT_BEGINNING_RULE
Message: Three successive sentences begin with the same word. Reword the sentence or use a thesaurus to find a synonym.
...s, namely an upper and a lower chamber. The upper chamber is where the electricity ...
^^^

Transition Words or Phrases used:
first, if, second, whereas, on the other hand

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 14.0 7.0 200% => OK
Auxiliary verbs: 8.0 1.00243902439 798% => Less auxiliary verb wanted.
Conjunction : 9.0 6.8 132% => OK
Relative clauses : 7.0 3.15609756098 222% => Less relative clauses wanted (maybe 'which' is over used).
Pronoun: 10.0 5.60731707317 178% => Less pronouns wanted
Preposition: 24.0 33.7804878049 71% => OK
Nominalization: 3.0 3.97073170732 76% => OK

Performance on vocabulary words:
No of characters: 1049.0 965.302439024 109% => OK
No of words: 224.0 196.424390244 114% => OK
Chars per words: 4.68303571429 4.92477711251 95% => OK
Fourth root words length: 3.86867284054 3.73543355544 104% => OK
Word Length SD: 2.4293878289 2.65546596893 91% => OK
Unique words: 107.0 106.607317073 100% => OK
Unique words percentage: 0.477678571429 0.547539520022 87% => More unique words wanted or less content wanted.
syllable_count: 328.5 283.868780488 116% => OK
avg_syllables_per_word: 1.5 1.45097560976 103% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 1.53170731707 131% => OK
Article: 6.0 4.33902439024 138% => OK
Subordination: 1.0 1.07073170732 93% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 1.0 3.36585365854 30% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 9.0 8.94146341463 101% => OK
Sentence length: 24.0 22.4926829268 107% => OK
Sentence length SD: 45.9704682445 43.030603864 107% => OK
Chars per sentence: 116.555555556 112.824112599 103% => OK
Words per sentence: 24.8888888889 22.9334400587 109% => OK
Discourse Markers: 5.0 5.23603664747 95% => OK
Paragraphs: 6.0 3.83414634146 156% => Less paragraphs wanted.
Language errors: 1.0 1.69756097561 59% => OK
Sentences with positive sentiment : 1.0 3.70975609756 27% => More positive sentences wanted.
Sentences with negative sentiment : 4.0 1.13902439024 351% => Less negative sentences wanted.
Sentences with neutral sentiment: 4.0 4.09268292683 98% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.139163040261 0.215688989381 65% => OK
Sentence topic coherence: 0.06728568421 0.103423049105 65% => OK
Sentence topic coherence SD: 0.0899706581566 0.0843802449381 107% => OK
Paragraph topic coherence: 0.0953114899696 0.15604864568 61% => OK
Paragraph topic coherence SD: 0.0971472500601 0.0819641961636 119% => OK

Essay readability:
automated_readability_index: 13.1 13.2329268293 99% => OK
flesch_reading_ease: 55.58 61.2550243902 91% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 11.5 10.3012195122 112% => OK
coleman_liau_index: 10.16 11.4140731707 89% => OK
dale_chall_readability_score: 8.21 8.06136585366 102% => OK
difficult_words: 48.0 40.7170731707 118% => OK
linsear_write_formula: 13.5 11.4329268293 118% => OK
gunning_fog: 11.6 10.9970731707 105% => OK
text_standard: 12.0 11.0658536585 108% => OK
What are above readability scores?

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Maximum four paragraphs wanted.

Rates: 67.4157303371 out of 100
Scores by essay e-grader: 6.0 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.