Should You Change Your SP Group Meter Option After Installing Solar?
Installing solar changes how much electricity you import, which can make a different SP Group plan worth a second look. Here is why it is worth checking, not a rule to follow blindly.
Quick answer
Installing solar does not automatically change your SP Group electricity plan, but it substantially changes your import volume, which makes it a good moment to review whether the standard tariff or a retailer plan under the Open Electricity Market actually suits your new usage pattern better.
Installing solar does not ever automatically change your SP Group electricity plan, but it is a genuinely good moment to review it, since your consumption pattern after solar looks very different from before. Your metering is updated to measure export as part of the installation, separate from which underlying price plan you are on.
Why does solar change the plan-comparison picture?
Before solar, an electricity plan comparison is based on your full monthly consumption. After solar, a substantial share of your daytime usage is met directly by your own panels rather than grid imports, which changes both your total import volume and, in some cases, when you draw most of your remaining grid electricity. A plan structure that made sense against your old, higher import volume may not be the best fit against your new, lower one.
What are the general plan options in Singapore?
Singapore households can generally choose between SP Group's standard regulated tariff or a plan from a retailer under the Open Electricity Market, each with different pricing structures. Which is genuinely cheaper depends on your specific consumption pattern, which is exactly why this is worth reviewing with your actual post-solar numbers rather than assumptions carried over from before installation.
| Before reviewing your plan | Why it matters |
|---|---|
| Wait until you have a few months of real post-solar usage data | Gives an accurate picture of your new import volume and pattern |
| Compare using your actual updated bill, not pre-solar estimates | Old consumption figures will not reflect your new situation |
| Check with SP Group directly on current plan options | Retailer offerings and terms change, so current information matters |
Who are the actual retailer options under the Open Electricity Market?
Six licensed retailers currently operate under Singapore's Open Electricity Market: Senoko Energy, Keppel Electric, PacificLight Energy, Sembcorp Power, Geneco (Seraya Energy), and Tuas Power Supply. Each publishes its own plans, typically fixed-rate contracts of 6 to 24 months, usually priced somewhat below SP Group's regulated tariff to be competitive.
| Retailer | Typical plan structure |
|---|---|
| SP Group (regulated) | No contract, default option, rate reviewed quarterly |
| Senoko Energy, Keppel Electric, PacificLight, Sembcorp Power, Geneco, Tuas Power | Fixed-rate contracts, typically 6 to 24 months, rates set independently by each retailer |
Exact rates are deliberately not listed here, since retailer pricing changes frequently, sometimes week to week, as each competes on promotional offers. Check current rates directly with a retailer or a live comparison source before deciding, rather than relying on a fixed number in an article that may be several months old by the time you read it.
Does your retailer choice affect your solar export credit?
Yes, indirectly, by changing which scheme applies. Staying on SP Group's regulated tariff keeps you under SCT, a fixed rate calculated from that tariff. Switching to a retailer moves your export credit to ECIS instead, a variable rate tied to the half-hourly wholesale electricity price, unrelated to the regulated tariff.
Neither scheme is reliably better, since ECIS trades a stable rate for one that can be higher or lower depending on real-time market conditions, which is a genuinely separate consideration from whichever plan is cheaper for the electricity you import.
Does the timing of a plan review actually matter, or can it happen right after installation?
Timing genuinely matters here. Reviewing plans immediately after installation means comparing options against an estimate of your post-solar usage rather than real, observed data, since your actual import pattern only becomes clear once the system has been running through a full billing cycle or two. Waiting a few months to gather real post-solar bills before seriously comparing plans gives a genuinely more accurate picture than acting on day one, even though the instinct to sort everything out immediately after installation is understandable.
Is switching plans complicated after installing solar?
The process itself is a standard SP Group or retailer plan switch, not something unique to having solar, though it is worth confirming with SP Group directly how your specific export credit arrangement interacts with whichever plan you are considering, since this is the kind of detail worth verifying directly rather than assuming.
Should everyone switch plans after installing solar?
Not necessarily. For some households, the existing plan remains the better fit even after solar changes their consumption pattern. The point is not that a switch is automatically worthwhile, but that solar changes the underlying numbers enough to make a fresh comparison worth doing, rather than leaving an old plan choice unexamined indefinitely.
Further reading: see SCT and ECIS, how Singapore's solar export credit actually works for how your specific plan determines which scheme applies, and the solar terminology glossary for related terms. Run the Sunnify solar estimate to see your projected post-solar consumption, and use that projection as your starting point for a plan comparison once real bills are in hand.
FAQ
Frequently asked questions
The meter, yes; the plan, no, and keeping those two separate is the key to understanding this whole topic. Your metering is upgraded specifically to measure export as a mechanical part of the solar connection process, entirely independent of which underlying price plan you happen to be on before or after.
Solar substantially reduces how much electricity you import from the grid, which changes the economics of different plan structures. A plan that looked attractive based on your pre-solar usage pattern may no longer be the best fit once most of your daytime consumption is met by your own panels instead of grid imports.
Contact SP Group or review current retailer offerings under the Open Electricity Market directly, using your new, lower post-solar consumption pattern as the basis for comparison, since a plan comparison done on your old usage figures will not reflect your actual situation anymore.
Indirectly, yes, since it moves you from one export scheme to an entirely different one, not by any direct choice about export rates themselves. The scheme switch is a structural side effect of choosing where you buy your electricity from, worth knowing before assuming a retailer switch only touches your import bill.
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