Elektrilistele
Elektrilistele is an Estonian grammatical form of the adjective elektriline, meaning electrical. It is the plural allative case form, used with plural nouns to express a direction toward or a purpose for the plural noun phrase. In Estonian, the allative suffix is -le; thus elektrilistele is formed from the plural stem elektrilised plus -le. The form is one of several case-inflected variants that adjectives can take to agree with the noun they modify.
A key point is that elektrilistele is not a standalone word with a fixed meaning. It functions
In contrast, elektriliste (without the -le) is the genitive plural form and has a different syntactic use.
Summary: elektrilistele is the plural allative inflection of elektriline, used to indicate direction toward or for