The Electricity Saving Thread

**Jiggs** · October 18th, 2012 11:28 AM

kahit pa ipagbargain yang CNG Gen sets na yan....goodluck if you could get a CNG supplier here sa Pinas...Eh yun ngang mga DOE sponsored CNG buses eh kulang lagi ang supply ng Shell Malampaya..yan pa kayang Generators for individual consumers?

I think if you really are big KW consumer ng meralco you will really benefit dun sa TOU program nila..yun nga lang you have to allocate your usage para mafeel mo ung savings.

**ghosthunter** · October 18th, 2012 11:28 AM

Originally Posted by 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...

Possible. Just the issue of getting a regular CNG supply.

Back in the power shortage in the early 1990s, running a diesel gen-set was actually cheaper than Meralco rates.

**glenn manikis** · October 18th, 2012 11:47 AM

Originally Posted by Jiggs

kahit pa ipagbargain yang CNG Gen sets na yan....goodluck if you could get a CNG supplier here sa Pinas...Eh yun ngang mga DOE sponsored CNG buses eh kulang lagi ang supply ng Shell Malampaya..yan pa kayang Generators for individual consumers?

I think if you really are big KW consumer ng meralco you will really benefit dun sa TOU program nila..yun nga lang you have to allocate your usage para mafeel mo ung savings.

AFAIK CNG and LPG pwede daw po gamitin as fuel....

sir shadow kahit naman ngayon much cheaper pa din kung Diesel Gen Sets ang gagamitin... ang NAPOCOR nga sir DIESEL GEN. SETS din lang ang gamit sa ibang lugar... usually ang ginagamit ng NAPOCOR 4 units na 750-1200KVA lang....

**greenlyt** · October 18th, 2012 12:05 PM

Originally Posted by Jiggs

kahit pa ipagbargain yang CNG Gen sets na yan....goodluck if you could get a CNG supplier here sa Pinas...Eh yun ngang mga DOE sponsored CNG buses eh kulang lagi ang supply ng Shell Malampaya..yan pa kayang Generators for individual consumers?

I think if you really are big KW consumer ng meralco you will really benefit dun sa TOU program nila..yun nga lang you have to allocate your usage para mafeel mo ung savings.

well kung may demand magkakaroon ng supplier... i think.....

**Horsepower** · October 18th, 2012 12:46 PM

Originally Posted by ghosthunter

Now a "sticky".

Thank you Sir.

**uls** · October 18th, 2012 01:04 PM

Originally Posted by 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...

saan nabibili ng CNG dito?

sa Batangas at Laguna lang

how will the CNG be transported to the malls?

--

i'm sure big mall owners like SM and Robinson's have already studied all viable ways to lower their electric bill

if CNG gensets are practical they would already be using them. they have more than enough capital to import CNG gensets by themselves

**uls** · October 18th, 2012 01:10 PM

Originally Posted by greenlyt

well kung may demand magkakaroon ng supplier... i think.....

ya may demand naman -- natural gas power plants. yan ang sinu-supplyan ng Malampaya

Malampaya natgas is fed to 3 power plants in Batangas

for transport, i think there are only 2 stations where you can get CNG -- in Batangas and Laguna

there's no pipeline infrastructure to distribute natgas beyond those places

**glenn manikis** · October 18th, 2012 02:13 PM

Originally Posted by uls

saan nabibili ng CNG dito?

sa Batangas at Laguna lang

how will the CNG be transported to the malls?

--

i'm sure big mall owners like SM and Robinson's have already studied all viable ways to lower their electric bill

if CNG gensets are practical they would already be using them. they have more than enough capital to import CNG gensets by themselves

new techonology daw sir? you need trained techinicians to install it sa A.C..... and ang ka partner namin eh yung manager ng co. na gumagawa ng gen. set for AC... sila din kasi yung supplier namin ng GEN. SETS... YUNG CNG siguro baka magka problema kung hindi ppwede ang LPG... what do you think sir? maganda kayang pasukin?

**uls** · October 18th, 2012 04:05 PM

why not?

give it a try

but i have my doubts re CNG-powered gensets

and i don't know about selling gensets to mall owners

those big guys can easily bypass importers and go directly to the source

even if the technology is new the supplier can send people here to supervise the installation

**userfriendly** · October 18th, 2012 05:20 PM

Also remember that for CNG/LPG gensets, you have to get DENR permit, building permit, mechanical and electrical permits and a whole lot of other permits. While I'm sure that the mall operators can get these, its a hassel.

Maintenance is another issue. Unless those are low speed generator sets, you will have maintenance issues. Specially with China units.

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.

**ghosthunter** · October 18th, 2012 05:27 PM

Originally Posted by userfriendly

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** · October 18th, 2012 11:16 PM

Originally Posted by 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** · October 18th, 2012 11:30 PM

natural gas genset suppliers

China Natural Gas Genset, China Natural Gas Genset Manufacturers, China Natural Gas Genset Suppliers and Companies on Alibaba.comGas Turbine Generators

**userfriendly** · October 19th, 2012 01:20 AM

Originally Posted by ghosthunter

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** · October 27th, 2012 07:27 PM

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

**userfriendly** · October 27th, 2012 09:19 PM

Originally Posted by Retz

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** · October 28th, 2012 11:56 AM

Originally Posted by userfriendly

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** · October 29th, 2012 03:12 PM

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** · October 30th, 2012 09:39 AM

^

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

**CVT** · December 18th, 2012 10:40 AM

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

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