My Last Electric Bill, Ever!

[Bandersnatch]

8 hours ago, Startmeup said:

80% capacity disclaimer after x amount of cycles reminds me of my iPhone. When I replaced my battery recently it said I still had 90% capacity. I don't care what it says I know what once lasted me a day and a half for 0-12 months now went dead after 3/4 of a day after 18-24 months of use. 

I know and Apple knows too there is no way that battery had 90% capacity or even 80% capacity but they give warranties to say they will replace it if it goes below 80%. Instead of me getting a battery on warranty I had to fork out and pay it myself. 

Phone batteries and EV batteries are not the same. Leave your phone out in the sun here for a few minutes and it shuts down. EVs have active cooling. My car has a 580km range when it is new. The warranty on the battery is 8 years or 160,000km. If the capacity drops to less than 70% in that time (worse case scenario) the battery will be replaced. So after 8 years it will still have over 400km of range and fast 150kW charging speed.

 

8 hours ago, Startmeup said:

Im curious How do these EV's manage from a heat POV especially when charging in a garage or outdoors? Does the charging cycle stop often with the BMS due to overheating or Is it recommended you have it charging in a garage with air con?

At home you will be slow charging using a 7kW wall charger compared to 150W DC rapid charger. So heat will not be a problem. When DC charging active cooling is working and charge speeds can slow if the temperature rises to much, although I have never experienced this unless charging over 80%.

 

If you are really interested in EVs in Thailand, I started a discussion:

 

 

[Bandersnatch]

9 hours ago, Startmeup said:

Even then it's only suitable for a small amount of people in Thailand as most people live in Condos

This is a common misconception made by visitors to Thailand that only see the big cities and resort towns.
 

In fact the vast majority of Thais live in detached houses giving plenty of opportunities for adding solar.

 

[KhunLA]

One thing these threads highlight (solar & EVs), that many people are extremely ignorant about both subjects.   MSM and the anti YT'er certainly have taken over folks' thinking and researching for themselves.

 

Along with most queries being answered numerous times on AN threads, with links, charts, from people with actual experience of having & owning both.

 

Quite surprising actually.

[motdaeng]

19 minutes ago, KhunLA said:

One thing these threads highlight (solar & EVs), that many people are extremely ignorant about both subjects.   MSM and the anti YT'er certainly have taken over folks' thinking and researching for themselves.

 

Along with most queries being answered numerous times on AN threads, with links, charts, from people with actual experience of having & owning both.

 

Quite surprising actually.

 

i like to express my gratitude to the members of the forum who have electric vehicles (BEV) and/or solar energy

and share their experiences (both positive and negative) with us. i appreciate the patience they have with which

they repeatedly respond rationally to the same negative myths and claims.

a big thank you to those members, please keep posting!

 

everyone who owns an electric vehicle or solar panels is aware that not everything is 100% perfect. nobody claims

to save the world climate solely through these measures. however, it is a fact that electric mobility and solar technology

have advanced extremely far in recent years, and there is still much potential for further progress.

[KhunLA]

15 minutes ago, motdaeng said:

 

i like to express my gratitude to the members of the forum who have electric vehicles (BEV) and/or solar energy

and share their experiences (both positive and negative) with us. i appreciate the patience they have with which

they repeatedly respond rationally to the same negative myths and claims.

a big thank you to those members, please keep posting!

 

everyone who owns an electric vehicle or solar panels is aware that not everything is 100% perfect. nobody claims

to save the world climate solely through these measures. however, it is a fact that electric mobility and solar technology

have advanced extremely far in recent years, and there is still much potential for further progress.

One good thing about answering repetitive queries, I notice a few, have gone from anti/EVs, CH, Solar to at least being more open minded, if not truly enlightened and see the logic & savings of having both, if it works for them 

 

Obviously not going to be applicable to many people.

Edited February 12 by KhunLA

[Beardog]

11 hours ago, KhunLA said:

No

Thanks KhunLa. That is my biggest concern. from what I read you need an inverter which I am sure solar has anyway to make the power work. But thanks I am more inclined to invest in solar now.

[Pink7]

18 hours ago, Crossy said:

Very, very finger in the air!

 

18,000 BTU will swallow 1,800W when running.

 

You need to over-panel a bit so you are generating in the morning / evening, let's say 3kW of panels and a 3kW grid-tie inverter.

 

10 x 340W panels at 3k Baht each. 30k Baht

3kW grid-tie mid-price inverter 12,500 Baht (cheaper units are available). 

 

Say 43k + something for bit's n bobs, say 50k all in.

 

Do you have a conventional spinning disc or electronic meter??

That system will over-generate at mid-day, if you have spinning disc, it will go backwards an electronic meter would ignore it.

 

If you are on an electronic meter, I would now recommend going hybrid with a small energy storage system (battery), more expensive I'm afraid.

 

Start a separate thread if the numbers are not too frightening.

Consider a quality aircon with Inverter. I use to run my whole home at 1000 kw/h or so with 18k btu running + 2 large refrigateors/freezers ( with inverter) + 1-2 tc + 1 to 2 pc ++. Count in the high startup power needed but after that power usage is not high with a quality units. I use Mitsubishi Electric mr slim 18BTU

 

Pink

[KhunLA]

18 minutes ago, Beardog said:

Thanks KhunLa. That is my biggest concern. from what I read you need an inverter which I am sure solar has anyway to make the power work. But thanks I am more inclined to invest in solar now.

We use a laptop, while using our 65" TV as our monitor.  No problem and better than the grid, as the inverter provides a steady current, unlike the ever fluctuating grid power.  Which wreaks havoc on electronics.

[Startmeup]

5 hours ago, Bandersnatch said:

This is a common misconception made by visitors to Thailand that only see the big cities and resort towns.
 

In fact the vast majority of Thais live in detached houses giving plenty of opportunities for adding solar.

 

Interesting. Thailand has become alot more developed since 2010, almost 15 years ago and that means massive amounts of condos have been built in Bangkok, Pattaya, Hua Hin, Phuket etc since then as people leave the countryside and move to cities where there is more work and opportunities available. I would think these stats have changed alot.

 

[Startmeup]

 

6 hours ago, Bandersnatch said:

Phone batteries and EV batteries are not the same. Leave your phone out in the sun here for a few minutes and it shuts down. EVs have active cooling. My car has a 580km range when it is new. The warranty on the battery is 8 years or 160,000km. If the capacity drops to less than 70% in that time (worse case scenario) the battery will be replaced. So after 8 years it will still have over 400km of range and fast 150kW charging speed.

 

Just so I have it clear.

 

BYD will replace your battery if the car won't drive more than 400kms up to that 8 years period, The last day of that 8 year period if you cant drive more than 400kms they will under warranty replace it for you for free?

 

Or they will replace the battery if the vehicle software doesn't show that the battery is below 70% capacity within 8 years?

After 8 years your on you own?

Edited February 12 by Startmeup

[KhunLA]

12 minutes ago, Startmeup said:

Just so I have it clear.

 

BYD will replace your battery if the car won't drive more than 400kms up to that 8 years period, The last day of that 8 year period if you cant drive more than 400kms they will under warranty replace it for you for free?

 

Or they will replace the battery if the vehicle software doesn't show that the battery is below 70% capacity within 8 years?

After 8 years your on you own?

Would imagine they'd do a battery capacity test, to find out why, and if just one or 2 modules not up to par, then they'd probably replace those, and hopefully give you the option to upgrade any others, while they have it opened up.

 

Degradation of >30% would be rare to lose over 8 years.  As an example, our MG ZS EV,

 

I estimate will lose <5% over our 8 year / 180k km warranty.

Edited February 12 by KhunLA

[Startmeup]

2 minutes ago, KhunLA said:

Would imagine they'd do a battery capacity test, to find out why, and if just one or 2 modules not up to par, then they'd probably replace those, and hopefully give you the option to upgrade any others, while they have it opened up.

 

Degradation of >30% would be rare to lose over 8 years.  As an example, our MG ZS EV,

 

I estimate will lose <5% over our 8 year / 180k km warranty.

Thats incredible, where do those estimates come from?

Who makes the MG batteries? CATL maybe. BYD produce their own if im not mistaken. 

[HighPriority]

16 hours ago, Rampant Rabbit said:

Nowhere have I said any of that is  wrong,  so you  have no idea of my understandings, what I  have said is for  most people in Thailand its impractical, Jesus they havent got enough money to get through today yet here  someone posts about a  1.6million baht car   running their  house as  almost normal with a  roof  with more solar  panels  than the size of most peoples  houses and a water  collection system thats enormous...........its simply not  practical or even remotely affordable for most  Thais.

Thats guys house is an exception, a  massive exception and at a  large financial cost out of reach of most Thais.

 

Sorry my bad, I thought you were dim of wit and was trying to help you, now though I can see that you are completely on top of the situation and it’s everyone else who’s stupid.

As you were sir 👍🏼

 

[KhunLA]

4 minutes ago, Startmeup said:

Thats incredible, where do those estimates come from?

Who makes the MG batteries? CATL maybe. BYD produce their own if im not mistaken. 

Read the link, as that was my unscientific estimate, though I think quite accurate, as the car's metering of all things is quite accurate.

 

Yes, MG uses CATL batteries, and BYD used their own of course, along with many other EV manufacturers.

Edited February 12 by KhunLA

[Bandersnatch]

55 minutes ago, Startmeup said:

Interesting. Thailand has become alot more developed since 2010, almost 15 years ago and that means massive amounts of condos have been built in Bangkok, Pattaya, Hua Hin, Phuket etc since then as people leave the countryside and move to cities where there is more work and opportunities available. I would think these stats have changed alot.

 

"I would think these stats have changed alot"

 

10% in 2010 and you think it is now over 50%

 

But no evidence offered to support your thinking.  

 

 

 

[nickmondo]

On 2/10/2024 at 8:57 AM, scorecard said:

Several impressive situations for sure.

 

A farang acquaintance told me recently he purchases a solar 'set up' to create enough charge to run one a/c all night and it worked well, so he bought a second unit.

 

Any comments on this much appreciated.

 

Why, because our family is big, my Thai son has 3 very young kids and we run 3 a/c's most of the night, so our bill is pretty high, if son can establish more positive comments re solar just for a/c's he intends to buy.

 

(By the way, I'm not looking for snide / judgemental comments on a/c's for kids.) 

you can only run an ac from solar during the night if you have a battery.  This battery is charged from the sun during the day (or from the grid) and the power from the battery can be used at night.  Its the cost of the batterys that make solar very expensive.  It can be a very good investment if your kwh useage is large, but if you only use about 10 a day, it would take a long time to re claim your investment

[Bandersnatch]

1 hour ago, nickmondo said:

It can be a very good investment if your kwh useage is large, but if you only use about 10 a day, it would take a long time to re claim your investment

 

I have already shared my payback.

 

 

Using these figures for your example of 10kWh/day usage

 

5,000 watts of PV @ ฿5/W = ฿25,000

5kWh of BESS @ ฿5k/kWh = ฿25,000

5kW of Inversion @ ฿5k/kW = ฿25,000

Total cost (not including installation and ancillaries) = ฿75,000

 

Savings

PEA Bill 3,650kWh/yr @ ฿5/kWh = ฿18,250/year

 

Payback = 4 years

 

 

Or 

 

Total cost including installation and ancillaries (estimated)  = ฿100,000

 

Savings

PEA Bill 3,650kWh/yr @ ฿5/kWh = ฿18,250/year

 

Payback = 5.5 years

 

 

Edited February 12 by Bandersnatch

[KhunLA]

1 hour ago, nickmondo said:

you can only run an ac from solar during the night if you have a battery.  This battery is charged from the sun during the day (or from the grid) and the power from the battery can be used at night.  Its the cost of the batterys that make solar very expensive.  It can be a very good investment if your kwh useage is large, but if you only use about 10 a day, it would take a long time to re claim your investment

That would depend if you are home during the say, and how much your system cost.  3kw invert w/6 panels doesn't add up to a lot.

[HighPriority]

52 minutes ago, Bandersnatch said:

 

I have already shared my payback.

 

 

Using these figures for your example of 10kWh/day usage

 

5,000 watts of PV @ ฿5/W = ฿25,000

5kWh of BESS @ ฿5k/kWh = ฿25,000

5kW of Inversion @ ฿5k/kW = ฿25,000

Total cost (not including installation and ancillaries) = ฿75,000

 

Savings

PEA Bill 3,650kWh/yr @ ฿5/kWh = ฿18,250/year

 

Payback = 4 years

 

 

Or 

 

Total cost including installation and ancillaries (estimated)  = ฿100,000

 

Savings

PEA Bill 3,650kWh/yr @ ฿5/kWh = ฿18,250/year

 

Payback = 5.5 years

 

 

So you concede he’s right and you’re wrong… 🙄

🤣🤣

 

[lom]

3 hours ago, HighPriority said:

So you concede he’s right and you’re wrong

Right about what?

[HighPriority]

18 minutes ago, lom said:

Right about what?

He’s right about nothing son. 

One guy voiced an opinion backed by nothing and another gave a detailed analysis that corrected said opinions with  detailed costings. 
 

Nothing wrong with opinions but if you’re talking to experts you should be asking more than stating… and most of the guys stating in here know very little about the topic at hand. 

[Bandersnatch]

I felt the falling price of solar deserves it’s own topic

 

https://aseannow.com/topic/1319773-solar-power-is-cheap-and-it’s-going-to-get-even-cheaper-very-soon/

 

[UWEB]

On 2/10/2024 at 3:24 PM, Bandersnatch said:

 

You should watch my other videos on my channel about how I setup V2L. Basically I used a transfer switch to select between 2 sources of ac power input. In your case the grid and V2L. Set your inverter to SBU (solar first, then Battery, then Utility) with Utility if there is no V2L it will switch to PEA/MEA

 

I have single phase so I can’t say for certain that it would work. Does your inverter have the option to accept a generator input?

Have seen your Video, but how such a Switch can be installed with a 3 phase System? Would it be an option to have a 3 phase Hybrid Inverter and connect the V2L System to the Port where usually the Solar Battery is connected?

Edited February 13 by UWEB

[Bandersnatch]

7 minutes ago, UWEB said:

Have seen your Video, but how such a Switch can be installed with a 3 phase System? Would it be an option to have a 3 phase Hybrid Inverter and connect the V2L System to the Battery Port?

As I’ve never used 3 phase or any 3 phase solar equipment, I don’t feel a can answer your questions. Power coming from V2L will be single phase you need to find a way to integrate the single phase into your system. Do you split the phases across different zones of your house? In which case you could treat one of the zones as a UPS using V2L.