The Electricity Saving Thread

[ghosthunter]

It may be simpler to go with TOU and buy a Dunhambush ice cell A/C. Its a type of A/C that you typically run at night and produce chilled or ice water that you consume in the morning.

This only takes advantage of cheaper electricity rates at night. But power consumption is overall the same.

Downside, this will only solve the cooling issue. Power consumption for lights, appliances, electronics, etc. are still there.

[glenn manikis]

my eldest talk to me and they are planning to invest and or import on some kind of GEN. Sets that powers mall type A.C. units.... sabi nya kung nasa 40M daw ang Merlaco bill ng isang mall or school bababa daw ito ng 10M lang monthly... ang price nga lang ng isang unit ng GEN. SETs. eh nasa 100M... tried and tested na daw sa china.... GEN. sets powered by CNG.... mura kasi CNG Dito at mahal naman ang kuryente..... pasencya na hindi kumpleto detalye ko... ill ask for the details and ill post it here...

sorry typo error hindi po 100M.....nasa more or less 10M lang

[uls]

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[userfriendly]

This only takes advantage of cheaper electricity rates at night. But power consumption is overall the same.

Downside, this will only solve the cooling issue. Power consumption for lights, appliances, electronics, etc. are still there.

True, the power consumption of the light and other stuff will still be there. But by moving your cooling cost to night time, you lower the building's KW demand. In most buildings, cooling is the biggest consumer of power. This is specially true with big centralized A/C systems. Take for example a 20,000 sqm mall. This mall may have around 1000 TR of cooling capacity. That will use a lot of power. If you can shift the demand to night time when the mall is not consuming electricity, you esentially cut your KW demand by a huge factor. Another benefit is it maximizes the use of the transformer. Transformers use power even 24/7. There is core loss and Cu loss. So in effect, it is not efficient with no load or very low load. By moving cooling load to night time, your minimizing your system loss.

You can also get by with a smaller transformer and capacitor bank. This only appllies new buildings or buildings that will be buying new transformers or cap banks.

However, a new ice cell chiller will not be cheap. Like all other decisions, the building owners need to conduct feasibility study.
For lights, best if they can switch to LEDs.

[Retz]

Hindi ba pumalpak ung Ice Cell ng Dunham Bush sa Trinoma?

[userfriendly]

Hindi ba pumalpak ung Ice Cell ng Dunham Bush sa Trinoma?

ICe Cell pala gamit ng Trinoma. Did not know that. Thanks for the info.

[Retz]

ICe Cell pala gamit ng Trinoma. Did not know that. Thanks for the info.

Yup, pati na rin Serendra and ung mall sa divisoria. Nakausap ko si Guido.

[Horsepower]

That Dunham Bush Ice cell is a failure. Kaya pala napakainit sa Trinoma at Serendra. Lalo na sa Trinoma, medyo humid yung init. I even went as far as telling them that their AC is just way too hot (via their FB page).

Now I know what company is responsible for that horrendous HVAC job.

[Retz]

^

nagtitipid kasi sa kuryente sir, kaya cguro hindi na pinaandar ang compressor at ung ice nalang ginamit sa cooling. pero kulang.

[CVT]

Walandyo,- puno kasi palagi ng tao ang mga Malls sa NorthMM...

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