Tämä jääkaappi on energiatehokas ja säästää sähköä.

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Questions & Answers about Tämä jääkaappi on energiatehokas ja säästää sähköä.

What does on mean here?
On is the 3rd person singular present form of olla (to be). It acts as a copula, linking the subject (tämä jääkaappi) with the predicate adjective (energiatehokas).
Why is energiatehokas written as one word?
Finnish frequently forms compounds by combining roots without spaces. Here energiatehokas = energia (energy) + tehokas (efficient). Note that the final -a of energia is dropped when joined.
How do I decline energiatehokas when it’s used before a noun?

Adjectives in Finnish agree with the noun in case and number. For a single refrigerator: • Nominative: energiatehokas jääkaappi
• Partitive: energiatehokasta jääkaappia
• Genitive: energiatehokkaan jääkaapin
…and so on.

Why is sähköä in the partitive case?
Verbs like säästää (to save) often require a partitive object to express an indefinite amount or incomplete action. Sähköä is the partitive singular of sähkö (electricity).
Why isn’t there a pronoun (like se) before säästää?
Finnish verbs encode person and number in their endings, so subject pronouns are usually omitted. The form säästää already signals “he/she/it saves,” making se unnecessary.
How do you pronounce säästää and sähköä correctly?

• Stress is always on the first syllable: SÄÄ-stää, SÄH-kö-ä.
• Double vowels (ää) are long—hold them about twice as long as a short ä.

What case is jääkaappi in, and why?
Jääkaappi is in the nominative singular because it’s the subject of both clauses.
Why is the sentence structured as Tämä jääkaappi on energiatehokas ja säästää sähköä?
Finnish allows flexible word order and the omission of repeated subjects. After the first clause (Tämä jääkaappi on energiatehokas), the conjunction ja introduces the second verb phrase (säästää sähköä) without restating the subject.