Ever topped up your ECG prepaid meter and wondered exactly how many units that Cedi amount should give you? This calculator estimates your units (kWh) across ECG's three residential tariff bands, using rates set by the Public Utilities Regulatory Commission (PURC).
1. How to Use This Calculator
- Enter the amount in Cedis you plan to top up with, or tap one of the quick-amount buttons.
- The calculator shows estimated units across all three bands — Lifeline, Standard, and Higher Usage — since the rate per unit depends on which band applies to your household's monthly consumption.
- Check which band matches your typical monthly usage to see the most relevant estimate for you.
2. Understanding ECG's Tiered Tariff System
- Lifeline (0–30 kWh/month): The lowest, subsidized rate — designed for very light household usage.
- Standard (0–300 kWh/month): The most common band for typical households, at a moderate rate.
- Higher Usage (301+ kWh/month): The highest rate, applying to the portion of consumption above 300 kWh.
Because the bands are tiered, a household using 350 kWh doesn't pay the highest rate on all 350 kWh — only the portion above 300 kWh attracts the higher rate, similar to how income tax bands work.
3. 2026 Reference Rates (Per kWh)
| Band | Monthly Range | Rate per kWh |
|---|---|---|
| Lifeline | 0–30 kWh | ~GH₵ 0.88 |
| Standard | 0–300 kWh | ~GH₵ 1.80–2.00 |
| Higher Usage | 301+ kWh | ~GH₵ 2.25–2.65 |
These figures reflect rates seen in PURC's 2026 quarterly reviews at the time this page was built. PURC reviews tariffs every quarter, so always cross-check against your latest ECG bill, the ECG website, or PURC's official publications for the exact current rate.
4. Why Your Units Seem to Run Out Faster Than Expected
If your prepaid credit feels like it's disappearing quicker than it used to, a few factors are usually at play:
- Tariff increases: Following a PURC quarterly review, the same Cedi top-up buys fewer units than before if rates have risen.
- Crossing into a higher band: If your household's usage grows — more appliances, AC use in hot months, etc. — you may cross from the Standard band into Higher Usage rates without realizing it.
- Seasonal usage spikes: Air conditioning, fans, and refrigeration use more electricity during Ghana's hotter months, pushing up monthly kWh consumption.
- Appliance efficiency: Older or poorly maintained appliances (especially fridges and AC units) can draw significantly more power than newer, energy-efficient models.
5. Who Sets ECG's Tariffs?
ECG does not set its own prices. The Public Utilities Regulatory Commission (PURC), established under the Public Utilities Regulatory Commission Act, 1997 (Act 538), reviews and approves tariffs quarterly, alongside larger Multi-Year Tariff Order (MYTO) reviews periodically. These reviews account for fuel costs, the GHS/USD exchange rate, transmission and distribution losses, and Ghana's overall generation mix (a growing share of which comes from thermal/gas sources rather than hydro).
6. Frequently Asked Questions
It depends on which tariff band applies to your household's monthly consumption — Lifeline (0-30 kWh), Standard (0-300 kWh), or Higher Usage (301+ kWh). This calculator shows estimated units across all three bands so you can compare.
As your monthly consumption rises through ECG's tiered bands, the rate per unit increases. Tariff increases following PURC's quarterly reviews can also reduce how many units the same Cedi amount buys compared to previous top-ups.
A subsidized, lower rate per kWh for residential customers using 0-30 kWh per month, intended to keep electricity affordable for low-usage households. Above 30 kWh, you move into the standard tariff bands at a higher rate.
PURC reviews electricity tariffs quarterly, with larger Multi-Year Tariff Order reviews periodically. Rates can change several times within a single year, so always check the most current published tariff.
This calculator estimates units based on the core PURC per-kWh rate. Actual top-ups may include VAT, the street light levy, and other small charges, which can slightly reduce the units you receive compared to the headline rate alone.
The Public Utilities Regulatory Commission (PURC), under the Public Utilities Regulatory Commission Act, 1997 (Act 538), sets and reviews tariffs for ECG and other utilities. ECG does not set its own prices independently.
