P360,000 ang total na nagastos... 3 kw na set up =
P9,000 per month ang savings. P108,000 isang taon
108/360 = 30% ROI, 2.4 years Return of Investment. Great investment
November 1, 2026
Basic Step by Step Technical Tutorial for Solar Power Installation
Savings from oil and coal importation
DIY 8 kw solar power installation
Savings from oil and coal importation
Consultation with qulified electrician is essential
Wiring tutorials for your solar system (to save on labor cost)
Savings from oil and coal importation
Nag invest sa solar wala pa ring savings??!!
Savings from oil and coal importation
1. Hindi nagkuwenta ng actual load ng bahay. No se cuenta, no cuenta. (If you dont compute, there
is no value...
2. Low quality components
3. Nagtipid
Sizing up, computing for your solar power requirements
Savings from oil and coal importation
A shortcut, a hack on how to compute for your solar power requirements so that there is no under of over capacity, so that you will have set up swak for your requirements. Swakto
The size and cost of components to be computed are:
1. Solar panels;
2. The inverter
3. The batteries
4. Wires
5. Breaker
From what I understood, the following are the steps: (hacks)
1. Panels
1. Look at the electric bill Find the monthly kwh consumption. Say you found 449
2. 449 x 10 = 4490 = 5 kw/600 watts/penal = 7.48 = 8 panels
3. Panels required panels
2. Inverters
List down the watts requirements of the household.
Say you determine this to 5,200 watts/0.80 (for margin of safety = 6 kw inverter
3. Batteries:
Morning, pm, or balanced users. So you have choice of batteries:
100 AH - 50k
200 aH - 80k
300 ah -100K. Better buy th 300 ah battery for margin of safety in case of extended black outs or long period of low sunlight...
4. Wires
6,000 watts/230 volts = 26 amps
1, Wires for A C (connecting solar panels)
AWG 10 for 30 amps
2. DC = for 15.5 amps, puwede na 2.5MM but it is safer to use 4.0 mm
5. Breaker
A C side 26 x 1.25 = 40 amps
DC side 15.5 x 1.25 = 1938 = 20 amps
It is important always to consider safety (to prevent fires; solar panels are involved in fires because of overheating, BE ON THE SAFE SIDE.
Dont go for the cheaper side;
The other important factors are installation, delivery, and mounting which could be substandial.
The average rule of thumb price is P50,000 /kw So for 6 kw you need P300,000 budget which is far cheaper than P100,000/kw a decade ago
A lot of changes in the solar energy landscape
Savings from oil and coal importation
1. Decline in costs from P100,000/kw down t just almost P50,000 kw
2. More suppliers, more reliable components
3. More friendly regulations on rooftop installations.
Types: grid tie no battery, connected to the grid
hybrid - with battery, not tied to the grid
But dont attempt net metering. Really they would require that because of variances in specs of suppliers, the well being of the grid could be put at risk.
We are achieving a lot of success. Landbank, SSS are offering rooftop solar financing.... More suppliers, More agree on the benefits of solar panels
Downsides: fires, disposal of old expired panels, just 5 years life of storage, batteries.
Homeowner experience of rooftop solar panels investment
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1. Estimating the power requirements. and compatibility and availablility of matching inverters and controllers
2. Money traps - spending nearly a million to save thousands
3. Peak power production is when the homeowner is at the office
Advantages:
1. Saving on power costs;
2. No brown out, advantages for wfh guys....
But generally the advantages outweigh the downsides.
ERC case vs Rep Leandro Leviste
Savings from oil and coal importation
Many know that these cases are meant to silence and stall him from his privilege speeches on corruption claims vs some kababayan in Batangas. But we know that what is being charged vs his company and his person have impact on renewable energy.
By obtaining the right to grant franchise to companies wishing to provide in RE (and of course having a cut in the business) he has like all other powers that be (whom he is attacking) will dominate the small players. And he hasnt delivered as well to help solve the thin power reserve the country has.
If only he was consistent and would have delivered....
April 3, 2026
Could oil companies raise prices on their sales from old inventories?
Savings from oil and coal importation
Oil Deregulation Law. RA 8479
The no to PUV phase out made us vulnerable
Sec. Garin of DOE said yes. A popular curious senator was saying probably not. The oil deregulation law does not say anything about the issue. The law simply deregulated the industry and this post wonders if there was an IRR. How could legislators at the time of FVR had not be diligent about this. Favoring businessmen while at the same time protecting the citizens.
The no to PUV phase out made us vulnerable
Why did PH become vulnerable to oil shock from the Iran US war/Hormuz problem
Savings from oil and coal importation
We thought that with the RE law and much fanfare about EV PHL has weaned itself from dependence on oil and other fossil fuel. In an interview with a USec (DOE) he revealed that could have been avoided. As early as 2011, their group proposed EVs all through out the government: vehicles for public transport and solar for rooftops. That was 15 years ago.
Maybe their proposal on deaf ears and the tranport group actively resisted modernization what wiht their transport disruption, strikes. Had this mindset changed then and we are now EVs, we would not be panicking this much with P125.00 next week P150.00 diesel prices
He said that there are 26 brands of EV in China and they are much cheaper than ICE. Now everybody is scrambling for EVs.
Grap drivers used to earn P1,500 to P2,000 per day. Now they can do only P500.00 per day. We shot our feet with the delay in EV RE implementation. Most of our powerplants are coal. We even rejected nuclear. But that is clean energy in terms of CO2 emission. SK is nuclear. Most of Germany was nuclear and Premier Merkel who as physicist favored it, but nuked the same as a population made the cost of power in GErmany so high that many manufacturers are leaving Germany as base
When do we learn?
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