Üretim tahmini azalacaksa bile kurulu gücü değiştirmeyeceğiz.

This is a very common Turkish pattern: a noun compound.

• üretim = production
• tahmin = estimate, prediction
• üretim tahmini = production estimate / production forecast

In this kind of compound, the second noun usually takes a 3rd person possessive ending:

• hava durumu = weather condition / the weather
• enerji tüketimi = energy consumption
• üretim tahmini = production forecast

So here, -i is not the accusative ending. It is part of the compound structure.

A good way to think of it is:

• üretim tahmini = the forecast of production / production forecast

This is just how Turkish commonly links two nouns together.

azalacaksa bile means even if it will decrease or more naturally in English, even if it decreases / even if it is expected to decrease.

It breaks down like this:

• azal- = decrease
• -acak = future
• -sa = if
• bile = even

So:

• azalacaksa = if it will decrease
• azalacaksa bile = even if it will decrease

In the full sentence, this gives the idea:

• Even if the production forecast is lower / even if the production forecast decreases, we will not change the installed capacity.

Both are possible in some contexts, but they give slightly different feels.

• azalırsa = if it decreases
  This is more general or neutral.
• azalacaksa = if it is going to decrease / if it turns out it will decrease
  This points more directly to a future expected situation.

Because the subject is üretim tahmini (production forecast), the speaker is talking about a future prediction. So azalacaksa sounds very natural: it refers to a forecasted future drop.

Very roughly:

• azalırsa = if it decreases
• azalacaksa = if it is going to decrease / if it is expected to decrease

So the future marker helps match the idea of a forecast.

bile means even.

In this sentence, it strengthens the conditional clause:

• azalacaksa = if it will decrease
• azalacaksa bile = even if it will decrease

So bile adds the meaning despite that possibility.

Turkish often places bile right after the word or phrase it emphasizes. Here it emphasizes the whole condition:

• Üretim tahmini azalacaksa bile...
  = Even if the production forecast decreases...

So yes, its position is important. It comes after the conditional part to mean even if.

Yes, kurulu güç is basically a technical expression.

Literally:

• kurulu = installed / set up
• güç = power

In technical or energy-related contexts, kurulu güç usually means:

• installed power
• installed capacity

Depending on context, English may prefer installed capacity, especially in energy, electricity generation, or industrial production.

So this is not just random vocabulary; it is a standard term in technical Turkish.

Here, gücü is the definite direct object form of güç.

The verb değiştirmek means to change something, so the thing being changed is the direct object:

• kurulu güç = installed capacity
• kurulu gücü = the installed capacity

Turkish usually marks a specific/definite direct object with the accusative ending.

So:

• güç → base form
• gücü → accusative form

The change from ç to c happens because of a common sound change when a vowel-initial ending is added:

• güç
  • -ü → gücü

This is the same kind of change you see in words like:

• ağaç → ağacı
• ilaç → ilacı

It breaks down like this:

• değiştir- = change something
• -me- = negation
• -yecek = future
• -iz = we

So:

• değiştirmeyeceğiz = we will not change

Step by step:

• değiştirmek = to change something
• değiştirme- = not change
• değiştirmeyecek = will not change
• değiştirmeyeceğiz = we will not change

This is a very useful Turkish pattern:

• yapacağız = we will do
• yapmayacağız = we will not do
• değiştireceğiz = we will change
• değiştirmeyeceğiz = we will not change

Because the sentence has an object: kurulu gücü.

In Turkish:

• değişmek = to change / to become different
  This is usually intransitive.
• değiştirmek = to change something
  This is transitive.

Compare:

• Plan değişti. = The plan changed.
• Planı değiştirdik. = We changed the plan.

In your sentence, the subject is we, and the thing being changed is the installed capacity. So Turkish needs the transitive verb:

• kurulu gücü değiştirmeyeceğiz = we will not change the installed capacity

The basic structure is:

• Üretim tahmini azalacaksa bile = even if the production forecast decreases
• kurulu gücü = the installed capacity
• değiştirmeyeceğiz = we will not change

So the overall order is:

[condition] + [object] + [verb]

That is very natural in Turkish, because Turkish usually places the main verb at the end.

A very literal layout would be:

• Even if the production forecast decreases, the installed capacity we-will-not-change.

That sounds strange in English, but it is normal Turkish sentence structure.

Yes, but it is built into the verb.

• değiştirmeyeceğiz already contains -iz, which shows we

So Turkish does not need a separate pronoun like biz unless the speaker wants extra emphasis.

• değiştirmeyeceğiz = we will not change
• biz değiştirmeyeceğiz would usually sound unnecessary or unnatural here

Turkish often leaves subject pronouns out when the verb ending already makes the subject clear.

Yes. Depending on context, several translations could work:

• Even if the production forecast decreases, we will not change the installed capacity.
• Even if the production estimate is expected to decrease, we will not change the installed capacity.
• Even if the production forecast goes down, we will not change the installed power.

The best English version depends on the technical context:

• tahmin can be estimate or forecast
• kurulu güç can be installed power or installed capacity

So there is not always just one perfect translation.