Le fournisseur d’énergie compare l’auto-relevé et l’estimation.

Because de becomes d’ before a vowel sound. This is called elision.

• de + énergie → d’énergie
• French does this to make pronunciation smoother.

You will see this a lot:

• de eau → d’eau
• le ami → l’ami
• je aime → j’aime

So fournisseur d’énergie is just the normal form of supplier of energy.

Because both nouns are singular and use the definite article le or la, and that article becomes l’ before a vowel sound.

• le auto-relevé would sound awkward, so it becomes l’auto-relevé
• la estimation becomes l’estimation

So l’ can stand for either:

• le
• la

You have to know the noun’s gender to know which one it is replacing.

It is masculine: l’auto-relevé = le auto-relevé → l’auto-relevé.

A useful clue is that relevé is masculine, and the compound noun keeps that gender here.

So you would say:

• un auto-relevé
• l’auto-relevé

not:

• une auto-relevé

Because auto- is a prefix meaning self-, and in this word it is joined to relevé with a hyphen.

So auto-relevé means something like self-reading or self-meter reading.

French often uses hyphens in compound words, although usage can vary depending on the exact word and modern spelling conventions. Here, auto-relevé is the standard written form.

Yes. Compare is the third person singular present tense of comparer.

• je compare = I compare
• tu compares = you compare
• il / elle / on compare = he / she / one compares

In your sentence, the subject is Le fournisseur d’énergie, which is singular, so the verb is compare.

Even though it looks similar to the English word compare, the pronunciation is French, not English.

Both patterns exist in French, but they are used a little differently.

1. comparer A et B
   This is very common and simply means to compare A and B.

2. comparer A à B
   This can also mean to compare A to B, and sometimes feels a bit more like drawing a likeness or analogy.

In your sentence, compare l’auto-relevé et l’estimation is the most straightforward way to say that the supplier is examining the two values side by side.

So for learners, a good rule is:

• for basic factual comparison, comparer A et B is very common and safe

In French, it is very normal to repeat the article before each noun.

So:

• l’auto-relevé et l’estimation

is more natural than trying to use one article for both.

This is especially important here because:

• the nouns are different words
• they may have different genders
• each noun normally keeps its own article

English often drops repeated articles more easily than French does.

Grammatically, it is:

• fournisseur = supplier/provider
• d’énergie = of energy

So the structure is:

noun + de + noun

This is a very common French pattern, similar to:

• un fournisseur de gaz
• un ticket de bus
• une compagnie d’assurance

It is one of the main ways French expresses the English idea of of or a noun modifier.

A simple pronunciation guide is:

Le fournisseur d’énergie compare l’auto-relevé et l’estimation.
≈ luh foo-rnee-sur डे-ner-zhee kom-pair loh-toh ruh-luh-vay ay lay-stee-ma-syon

A few useful notes:

• Le is usually a light luh
• fournisseur ends with a French r, not an English one
• énergie sounds roughly like ay-ner-zhee
• compare ends with a pronounced r sound in French
• et is usually pronounced ay
• estimation ends with the nasal sound -syon

Also notice the smooth linking between words in natural speech, especially around d’énergie and l’auto-relevé.

Because standard French word order is usually:

subject + verb + object

So here:

• Le fournisseur d’énergie = subject
• compare = verb
• l’auto-relevé et l’estimation = object

This is the same basic order as in normal English statements:

• The energy supplier compares the self-reading and the estimate.

So the sentence structure is quite straightforward.

Yes. Fournisseur can often be translated as supplier or provider, depending on context.

For example:

• fournisseur d’accès internet = internet provider
• fournisseur d’électricité = electricity supplier/provider

So the best English word depends on the situation. In an energy or utility context, both can make sense, though supplier is often a very natural choice.