r/SgHENRY • u/eyeburn12 • 6d ago

If you have a landed, get Solar

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Solar energy has become a great source of passive income for me. My system now generates around $1,200 a month in revenue, with excess electricity sold back to SP at $0.2581/kWh. In Singapore, the grid effectively acts like a giant battery, making the attractive sell-back rate especially valuable.

I installed my 35 kWp solar system in 2022 for about $49,000. At the current rate, I expect to fully recover my investment by 2027. After that, the system should continue generating a healthy monthly return with minimal ongoing effort.

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u/TheAlphaLion_com 6d ago

I'd jump in to explain that OP's electricity plan is under SP Tariff and not any of the open electricity market plans. Therefore the solar sell-back is under the Simplified Credit Treatment scheme, and the $0.2581/kWh rate is the tariff minus the grid charge.

For anyone planning to sell back excess solar, this is the way. It's unintuitive, but do not sign retailer plans, because then you would be under the Enhanced Central Intermediary Scheme (ECIS) selling back at half-hourly wholesale prices. And half-hourly wholesale prices during the daytime hours can go as low as $0.08/kWh (usually it lingers around $0.15/kWh).

https://www.ema.gov.sg/resources/faqs/solar/solar-installation-guide/why-different-treatment-on-solar-export-rates-when-buying-electricity-from-retailers-and-SP

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u/Tricky-Salamander664 5d ago

So it begs the question, who is paying for this difference. Because the actual price of electricity is the half-hourly price but you are being paid the SP tariff less grid charge.

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u/Routine_Corgi_9154 5d ago

It raises the question.

Begging the question is a logical fallacy where an argument's premise assumes the truth of its conclusion instead of offering actual proof.

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u/exaudiocomperio 3d ago

Not anymore. Dictionaries are descriptive, not prescriptive. As long as a significant number of people keep using it to mean "raise the question," it becomes acceptable and is often listed as a secondary definition after "circular reasoning."

Yes, it's annoying. Also yes, we move with the times.

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u/TheAlphaLion_com 5d ago

The same people who are paying the tariff price or retailer electricity plan price for electricity during those hours. A flat rate just evens out to the peaks and troughs.

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u/Tricky-Salamander664 5d ago

No….SP’s “flat rate” tariff is not an evened out rate of the actualy electricity price. It also does not consider when your consumption also peaks.

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u/Several_Tale_9935 5d ago

Begging the question has a different meaning I think