I discovered that a simple mistake in an electricity contract had caused a loss of 10 million yen over a 150-year period.

I discovered that a simple mistake in an electricity contract had caused a loss of 10 million yen over a 150-year period.
We are currently applying for a subsidy for the headquarters building of a Tokyo builder.
I am currently preparing various documents for this project, but for reference, here are some of the documents I have prepared for my current company.
I got the electricity bill document.
Within five minutes of looking at it, I realized something incredible.
As is common in most office buildings
A normal electricity contract is called "metered electricity"
Low voltage power system commonly used for large ceiling cassette air conditioners
Two contracts were made.
Low-voltage electricity is a contract with an electric company, but in the public
Three-phase 3V, or more commonly known as power.
When I looked at the data on this power source, I was like, "Huh!?"
I thought.
The basic charge is 13801 yen, but the electricity usage is only 215 yen.
I thought I was seeing it wrong, but it's definitely correct.
This may seem obvious to those who are knowledgeable, but there is a trick to it.
For regular pay-as-you-go electricity, the cost is about 31 yen per kWh.
In return, the base price is cheap.
On the other hand, low-voltage lamps have a higher basic fee but are about half the price at around 17 yen per kWh.
In short, power is almost always beneficial if the operating time is longer than a certain amount.
This is a contract method that results in a huge loss for unused rooms.
I received two years' worth of data, and the average was about 2 yen...
To reveal the secret, it was the air conditioner in a rarely used conference room on the top floor.
If this had been a pay-as-you-go system, I think the monthly electricity bill would have been between 400 and 2000 yen.
At a rough estimate, I've been losing about 13000 yen a month.
Moreover, this contract... I heard that it had been going on for 10 years, so in total, he donated roughly 150 million yen to TEPCO.
It's like... what a waste...
In fact, if you look at TEPCO's website, they do provide a proper explanation.
http://www.tepco.co.jp/e-rates/individual/menu/home/home12-j.html
in this
"We recommend that you turn off the breaker for your air conditioner when you are not using it. Some devices allow a small amount of electricity to flow when they are simply switched off, so even if you are not using the device, you will still use electricity (in months when your electricity usage is 0 kWh, the basic fee is half price, but if your electricity usage is even 1 kWh, you will be charged the full basic fee). In addition, before you start using the device, please turn on the breaker and switch it on a few hours beforehand."
It says...
Has anyone ever read something like this?
This is what happens even to housing companies that are experts in a certain way. And there is no way that the general public would even know about it.
In the highly competitive world of mobile phones, if this situation persisted, people would likely switch companies the next day.
I think this is exactly what it means when there is no competition.
Full liberalization of the electricity market will begin in April 2016, including for residential use.
http://denki-erabu.jp/about/
There are cases in other countries where prices have risen since liberalization, so it is difficult to say for sure.
For example, there are electric power companies that only generate electricity from natural energy sources.
"It's a little expensive but I want to buy from there!"
If you go to Europe, you will find people like that.
So, if you are a business owner, check the power air conditioner mainly in the conference room.
For average households, there is a possibility that a significant reduction in electricity bills can be achieved by reducing the amperes.

I definitely recommend checking it out first. Especially President O!!!