Could you please correct my short writing?

Could you please correct my sentences to sound natural like a native English speaker says?

I was updating my website when the power was completely went out. I called the electricity service to report it and found out that the service would resume only by power wouldn't be back on until [1, 2] 3PM in my area.

* Is "completely" needed in the first sentence? Or unecessary to sound natural? [3]

* Is "found out" a proper verb? How about "was told" instead? [4]

* How about "in my neighborhood" or "in my block" instead of "in my area"? [5]

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[1] Saying that "the service will resume" is correct, but it is very formal.  The electricity company is likely to use such wording in any official communication.  For example:

"We advise customers that service will resume at approximately 3PM."

It is more colloquial to say that "the power will be back on".

[2] If the power will be back on promptly, you can say the following:

"I was told the power will be back on by 3PM."

However, if the power will take a long time to return, you can emphasize the outage by saying the following:

"I was told the the power wouldn't be back on until 3PM".

[3] It is not necessary. Because electricity cannot be "partially" out, there's no need to say that it was "completely" out.

[4] Either phrase is perfectly natural. Yet "was told" is slightly better.  "Found out" may mean that you listened to a recorded message.  "Was told" suggests that you spoke with a person.

[5] "In my area" is more natural. However, if you live in a city where it is possible for one area to have no power while other areas still have power, then "in my block" would be appropriate.

Could you please correct my short writing?

Could you please correct my sentences to sound natural like a native English speaker says?

I was updating my website when the power was completely out. I called the electricity service to report and found out that the service would resume only by 3PM in my area.

I was updating my website when the power went out. I called the electricians to report it and found out that the service would be back at 3PM.

* Is "completely" needed in the first sentence? Or unecessary to sound natural? Unecessary, change to went to make it more natural
* Is "found out" a proper verb? How about "was told" instead? Either one will work and sound good
* How about "in my neighborhood" or "in my block" instead of "in my area"? Because you are telling the story we just know that you are talking about your area :-)