Energialuokka on hyvä.

to be

Breakdown of Energialuokka on hyvä.

• hyvä: good
• energialuokka: the energy-efficiency class

Questions & Answers about Energialuokka on hyvä.

Why is energialuokka written as one word?

Because Finnish makes very frequent use of compound nouns.
Energialuokka is made from:

• energia = energy
• luokka = class, category, rating

When these are combined in Finnish, they are normally written as one word: energialuokka.

This is very common in Finnish:

• kahvikuppi = coffee cup
• kirjahylly = book shelf / bookshelf
• energialuokka = energy class / energy rating

The last part of the compound is usually the main noun, so energialuokka is a kind of luokka.

Why is there no word for a or the in the sentence?

Finnish does not have articles like English a/an and the.

So Energialuokka on hyvä can mean:

• The energy rating is good
• An energy rating is good
• simply Energy rating is good

Which one sounds best in English depends on context, but Finnish does not mark that difference with articles.

What does on mean here?