El local electoral abre ahora.

In this sentence, el local electoral means the polling station or the voting place.

Literally:

• local = premises, venue, place
• electoral = electoral, related to voting/elections

So together, it refers to the place where people go to vote. In Spain, this is a normal and natural expression in formal or official contexts.

Because local is a masculine noun here.

• el local = the premises / the venue / the place

Even though an English speaker might not know the gender from the meaning, in Spanish nouns have grammatical gender, and local is masculine when it means venue or premises.

That is why the article is el, not la.

Not in this sentence.

In Spanish, local can be:

• a noun meaning premises, venue, shop unit, place
• an adjective meaning local

Here it is a noun, so it does not mean local in the English adjective sense.

So el local electoral is not the local electoral...; it means the electoral venue / polling station.

Because in Spanish, adjectives usually come after the noun.

So:

• local electoral = electoral venue
• proceso electoral = electoral process
• campaña electoral = electoral campaign

This is the normal word order in Spanish. English often puts adjectives before the noun, but Spanish usually puts them after.

Abre is the third-person singular present tense of abrir (to open).

So it can mean:

• he opens
• she opens
• it opens
• you open (formal usted)

In this sentence, the subject is el local electoral, which is singular, so abre means opens / is opening.

Abre is a simple and natural way to say that the polling station opens now.

Compare:

• El local electoral abre ahora. = The polling station opens now / is opening now.
• El local electoral está abierto ahora. = The polling station is open now.

So:

• abre focuses on the action of opening
• está abierto focuses on the state of being open

As for abrese, that is not the normal form here. You may see forms like se abre in other contexts, but in this sentence the direct, active form abre is the natural choice.

It can mean both, depending on context.

Most basically, ahora means now. In this sentence, it most likely means:

• now
• right now
• at this moment

But in real Spanish, ahora can sometimes be a bit flexible and mean something like nowadays or at this point in other contexts. Here, though, the most natural meaning is immediate: the polling station is opening now.

Yes. That is also grammatical.

Spanish word order is more flexible than English. These versions are possible:

• El local electoral abre ahora.
• Ahora abre el local electoral.

The difference is mainly one of emphasis:

• El local electoral abre ahora puts the topic first: the polling station
• Ahora abre el local electoral emphasizes now

Both are natural, depending on what you want to highlight.

Because electoral is an adjective, not a noun here.

So the structure is:

• el = the
• local = noun
• electoral = adjective modifying local

You do not need a second article. Spanish does not say something like the place the electoral. It simply says el local electoral.

Yes. Adjectives agree with the noun they describe.

Here:

• local is singular masculine
• so electoral is also singular masculine in agreement

However, electoral has the same form for masculine and feminine singular:

• el local electoral
• la campaña electoral

In the plural:

• los locales electorales
• las campañas electorales

So the adjective agrees in number, and its form does not visibly change for masculine vs. feminine in the singular.

A simple pronunciation guide:

• abre ≈ AH-breh
• electoral ≈ eh-lek-toh-RAL

Stress:

• abre: stress on the first syllable
• electoral: stress on the last syllable

Full sentence:

• El local electoral abre ahora
• roughly: el loh-KAL eh-lek-toh-RAL AH-breh ah-OH-rah

In Spain, the r in abre and electoral is tapped lightly.

There are other ways too.

Depending on context, you may also hear:

• colegio electoral = polling station / polling place
• mesa electoral = polling table/board, not exactly the whole place
• centro de votación = voting centre (more common in some other Spanish-speaking countries)

In Spain, local electoral is a normal official term, especially in administrative or election-related language.