Insights

The OptiRate Blog

Expert insights on electricity costs, tariff optimisation, billing errors, and energy management for South African businesses.

Utility Bill Auditing 20 May 2026

The Electricity Line Item Your Business Accountant Never Questions

Most SA businesses trust their electricity bills blindly. With 1,548 billing errors found across 6,017+ audits, the numbers tell a different story. That unques…

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Utility Cost Management 20 May 2026

'We Don't Have Billing Errors' — The Most Expensive Assumption in South African Business

Every business thinks their bills are correct. Then we audit. Across 6,017+ accounts, we've found 1,548 billing errors with an 18.6% average saving. The questi…

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Utility Bill Auditing 20 May 2026

How to Spot Electricity Billing Errors on Your City Power Account

City Power serves hundreds of thousands of commercial accounts in Johannesburg. Estimated readings, tariff misapplication, and meter errors are common. Here is…

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Utility Bill Auditing 20 May 2026

City of Cape Town Electricity Billing Errors: What to Check on Your Municipal Account

Cape Town businesses consistently report estimated readings, incorrect tariff categories, and backdated charges on their municipal electricity accounts. Here's…

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Industry Insights 20 May 2026

6,582 Accounts. 1,771 Errors. What OptiRate's Data Reveals About SA Municipal Billing

After analysing thousands of South African business utility accounts, a clear pattern emerges: billing errors are not the exception. They are the norm. Here's …

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Utility Cost Management 20 May 2026

One Audit vs Ongoing Monitoring: Why SA Businesses That Check Once Still Overpay

A one-off electricity audit finds what's wrong today. But municipalities change tariffs, re-estimate meters, and apply backdated charges every month. Continuou…

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Utility Cost Management 20 May 2026

Your Electricity Bill Is Probably Wrong — And You'd Never Know It

South African businesses overpay millions every year on electricity — not because rates are high, but because their bills are simply wrong. Here's what's hidin…

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Utility Bill Auditing 10 May 2026

Why South African Businesses Overpay on Electricity by 20% (And How to Stop)

Research shows South African businesses overpay on electricity by up to 20% due to billing errors, wrong tariffs, and missed optimisation opportunities. Here's…

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Utility Bill Auditing 27 Mar 2026

7 Warning Signs Your South African Business is Overpaying on Electricity

Discover the 7 warning signs that indicate your business is overpaying on electricity. From suspicious spikes to tariff mismatches—learn what to look for befor…

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Utility Bill Auditing 26 Mar 2026

Why South African Businesses Overpay on Electricity by 30% (And How to Stop)

Research shows South African businesses overpay on electricity by up to 30% due to billing errors, wrong tariffs, and missed optimisation opportunities. Learn …

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Utility Bill Auditing 23 Mar 2026

Five Electricity Billing Errors on South African Municipality Accounts — And How to Catch Them

A KZN doctor got a R2.7 million electricity bill. A Tshwane estate was double-charged on a levy affecting thousands of accounts. These are symptoms of a struct…

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Tariff Optimisation 23 Mar 2026

Most South African Businesses Don't Know What Electricity Tariff They're On — And It's Costing Them

Your business pays an electricity bill every month. But do you actually know which tariff category you're billed under? If not, you could be overpaying by thou…

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Industry Insights 23 Mar 2026

R 39 Million and Counting: What OptiRate Has Found in South African Business Utility Bills

Real numbers from real South African business accounts — what OptiRate has identified in savings and billing errors, how it was found, and what it means for bu…

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Industry Insights 01 Jan 2026

1,832 Billing Errors. 6,859 Account Reviews. Here's What OptiRate Has Found

Real numbers from real account reviews. Here's what OptiRate's full platform — electricity, water, metering, solar, and property rates — actually finds on SA b…

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