La potencia aparece en la factura.

In this context, potencia usually means electrical power capacity or contracted power, especially on a utility bill. It does not usually mean abstract power in the sense of political power or personal power here.

So on a Latin American or Spanish utility bill, la potencia may refer to a technical electricity-related value.

Spanish often uses the definite article el / la / los / las more often than English does.

Here, la potencia refers to a specific item that is understood in context, such as the power rating or contracted power shown on the bill. In English, we might sometimes drop the, but in Spanish it sounds natural to include it.

So:

• la potencia = the power / the power capacity

Aparece comes from the verb aparecer, which means to appear or to show up.

In this sentence, though, a more natural English meaning is:

• is shown
• is listed
• appears

So La potencia aparece en la factura means that the power information is shown/listed on the bill.

Aparece emphasizes that something shows up or is present in visible form on the document.

Compare:

• La potencia aparece en la factura = The power appears / is shown on the bill.
• La potencia está en la factura = The power is on the bill.

Both can make sense, but aparece sounds more like it is displayed or listed there. It focuses a bit more on the information being visible on the document.

Factura usually means bill or invoice.

In everyday contexts, especially with services like electricity, gas, phone, or internet, la factura is often best translated as the bill.

So here:

• la factura = the bill
• possibly the invoice, depending on context

This is a very common difference between Spanish and English.

Spanish often uses en where English uses either in or on. With documents, pages, bills, forms, and similar things, en is very common.

So:

• en la factura = literally in the bill
• but natural English translation = on the bill

This is just a normal preposition difference between the two languages.

Because the subject is la potencia, which is singular.

Breakdown:

• la potencia = singular noun
• aparece = third-person singular form of aparecer

If the subject were plural, the verb would also be plural:

• Las potencias aparecen en la factura.

Aparece is in the present indicative.

It can be understood as:

• appears
• shows up
• is shown

Spanish often uses the present tense for general facts and statements, just like English does.

Yes, factura is feminine:

• la factura

And in this sentence, the article and preposition phrase match that:

• en la factura

While many nouns ending in -a are feminine, that is a pattern, not an absolute rule. But factura is indeed feminine.

It is pronounced roughly ah-pah-REH-seh in Latin American Spanish.

The stress is on the second-to-last syllable:

• a-pa-re-ce

A rough guide:

• a as in father
• re with a tapped Spanish r
• ce in Latin America sounds like seh

So: ah-pah-REH-seh

Yes, absolutely. That is a very natural translation if the context is technical or related to utilities.

Possible natural translations include:

• The power appears on the bill.
• The power is shown on the bill.
• The power rating is listed on the bill.
• The contracted power appears on the bill.

The best translation depends on the real-world context of potencia.