Reliable Power at the Lowest Cost: How Nigerian Businesses Can Take Control of Their Energy Costs
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- 6 min read
Nigeria loses an estimated 40 trillion Naira every year due to unreliable power. For businesses operating in this environment, energy is not merely an operational concern; it is often the highest single cost on the balance sheet, accounting for up to 60% of total operational expenditure.
On 27 May 2026, Detopsy Engineering Limited https://detopsyengineering.com/ and enee.io jointly hosted a webinar that brought together energy professionals, business owners, and advocates to tackle this crisis directly. The session, led by Engr. Etop Inyang (CEO, Detopsy Engineering) and David Smith (Founder & CEO, enee.io) presented three practical steps that any Nigerian business can implement to secure reliable power at the lowest possible cost.
“Energy costs for businesses in Nigeria can be up to 60% of their total operational costs. Without visibility on that energy system, you lack the insights needed to improve performance and reduce costs.” — David Smith, CEO, enee.io
The Energy Problem: Why Costs Keep Rising
Despite successive government administrations pledging a stable power supply, Nigeria’s energy infrastructure continues to underperform. Businesses are trapped in a costly cycle driven by two compounding pressures:
Grid tariffs: Tariffs have risen significantly in recent years and are still expected to increase further, with international bodies reducing subsidies to the Nigerian government.
Diesel dependency: The cost of diesel has risen by approximately 600% over the past five years, and theft of diesel fuel costs Nigerian businesses an estimated 4 trillion Naira annually.
Beyond the headline figures, most businesses cannot answer basic questions about their own energy systems: What is the actual combined cost of grid and generator power? How many hours per day is the generator running? Are they on the correct NEPA tariff band? These knowledge gaps make it impossible to take meaningful action.
The Generator Trap: An Invisible Drain on Profitability
Generators are a necessary reality for Nigerian businesses, but they are almost universally oversized and poorly optimised. Across every site monitored by enee.io, generators are found to be running at 20–40% load well below the optimal 70–80% range. The financial consequences are significant:
A 150 kVA generator costs approximately ₦600 per kilowatt hour to run, compared to ₦220 on Band A grid supply and ₦60 on Band B.
An oversized generator running at 20% load burns 0.5 litres of diesel per kilowatt hour. A correctly sized generator at 60–70% load burns just 0.3 litres — a 60% cost difference.
Generators frequently continue running after the grid is restored, a common and entirely preventable source of waste.
The Solution: 3 Steps to Reliable, Cost-Effective Power
Step 1: Monitor
Visibility is the foundation of energy management. The enee.io monitoring system installs in as little as 10–30 minutes on an existing changeover switch and immediately begins capturing real-time data across the entire energy system, including grid availability, generator runtime, diesel consumption, and cost by source.
The platform is accessible via a mobile-optimised web app, giving operations managers a live, multi-site dashboard and sending instant alerts when generators run unnecessarily, or sites lose power.
Step 2: Optimise
Once data is flowing, inefficiencies become visible and actionable. Key optimisation opportunities include:
Generator right-sizing: Match generator capacity to actual peak load requirements, not design estimates.
Runtime waste reduction: Detect and eliminate instances of generators running when the grid supply is available.
Diesel loss detection: Identify theft, inaccurate reporting, and unexplained consumption.
NEPA tariff validation: Verify actual grid hours against the billed tariff band and challenge incorrect billing with verified data.
Step 3: Save
Optimisation translates directly into measurable financial savings: lower diesel spend, reduced operational waste, better system uptime, and the confidence to make smarter long-term investments, including solar PV and battery storage.
Real Results: Case Studies from the Nigerian Market
Case Study 1: Restaurant Chain — Generator Right-Sizing
A four-site restaurant chain was found to have all generators operating at 20–30% of their rated load. With a net spend of just over ₦40 million in correctly sized replacement generators (partially offset by reselling the existing units), the business eliminated ₦94 million in unnecessary annual diesel expenditure. The investment was recovered in under six months.
Case Study 2: Restaurant Chain — Switching Generator Priority
A second restaurant chain had a 110 kVA primary generator running at just 25% efficiency, alongside a smaller 65 kVA backup unit. Monitoring revealed the backup generator was the better fit for peak loads. Simply swapping their roles at zero capital cost saved the business ₦1 million per month in diesel.
Case Study 3: Banking Chain — Solar Investment Decision
A banking chain spending ₦4 million per month on energy (60% diesel, 40% grid) used enee.io monitoring data to right-size a solar PV installation. A 30 kWp system reduced their total energy costs by 25%, delivering an annual saving of ₦12 million and providing long-term protection against future energy price increases.
Case Study 4: Remote Business Owner — Generator Discipline
A business owner based in the US had no visibility into his Lagos facility’s energy usage. Despite the site receiving 18–22 hours of grid supply per day, generators were running almost continuously, driving energy costs above ₦2 million per month. Monitoring, combined with automated alerts and an automatic transfer switch installed by Detopsy, reduced his energy bill by ₦1.2 million per month with minimal capital outlay.
Voices from the Webinar
“Business dynamics in Nigeria are becoming more complex, and everything matters right now. If you are not managing your energy efficiently, you are losing money that should be part of your profits daily, monthly, yearly.” — Engr. Etop Inyang, CEO, Detopsy Engineering https://detopsyelectricalshop.com/
“Once you stop monitoring, you open up the opportunity for inefficiencies to creep back in. The ongoing benefit of long-term monitoring is key to keeping your energy costs in line.” — David Smith, CEO, enee.io
Questions & Answers: Key Insights from the Session
Is the enee.io system just for monitoring, or does it actually help save energy?
— Michael Chuma, Webinar Participant
We monitor the energy system and identify wastage within it. We give you the information that is currently missing. Where are you losing money with the system you already have? Once you understand where the losses are coming from, you can take action to correct them. For example, if a generator is oversized, you are losing money, and we can show you that. If a battery bank’s state of health is poor, it causes the generator to run more than necessary. There are many ways we identify losses, but the first step is always to monitor what you already have.
— David Smith, CEO, enee.io
What does the system cost, and what is the return on investment?
— Harrison, Webinar Participant
For a three-phase changeover switch system, the all-in first-year cost covering hardware, import duties, taxes, installation, and 12 months of subscription is approximately ₦700,000. Single-phase systems are lower; multi-generator or multi-load configurations are higher. Typically, customers see full payback within four months, based on as little as a 5% reduction in energy costs. In subsequent years, only the subscription fee applies, making the ongoing cost considerably lower.
— David Smith, CEO, enee.io
Can the system show a blended cost rate across both grid and generator supply?
— Yomi O, Webinar Participant
Yes. We monitor total site consumption and break it down by source, grid and generator separately. You can see your blended cost of energy, and how that breaks down between the two sources. This is available at the individual site level and aggregated across your entire organisation, whether you have one site or one thousand.
— David Smith, CEO, enee.io
Is the system tamper-proof?
— Chuka, Webinar Participant
The system isn't entirely tamper-proof, but we do receive immediate notifications if a monitor goes offline, and we can perform remote fault diagnosis. An offline alert is itself an early warning of potential tampering. The physical security of the equipment also depends on the security of the room in which the changeover switch is installed. Early notification is a significant deterrent if someone has tampering in mind; knowing that an alert will fire immediately changes the calculation.
— David Smith & Engr. Etop Inyang
Who owns the monitoring data?
— Engr. William Jaja, Webinar Participant
The customer who pays for the system owns the data. You can export it at any time. You can also grant access to other users — for example, giving a site manager access only to their specific site while you retain visibility across the whole organisation. Access is fully configurable, and we provide training tailored to each customer’s needs.
— David Smith, CEO, enee.io
Does the monitoring equipment have a verifiable calibration certificate for challenging NEPA billing?
— Consumer Advocate, Webinar Participant
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For NEPA band verification, we are not measuring consumption in kilowatt hours — we are monitoring the availability of grid supply: is the grid on or off? This does not require the same calibration standards as a smart meter. However, your point is well taken. We are developing an automated, signed report of grid hours received over a benchmark period that customers will be able to submit directly to the regulator. Any measurement used to challenge a disco’s billing must be referenceable, and we are building toward that standard.
— David Smith, CEO, enee.io
Getting Started: The First Step Is Seeing Clearly
Whether you run a single shop in Lagos or manage 100 sites across West Africa, understanding your energy system is essential.
To explore how to get started with energy monitoring that works in your environment, visit www.enee.io or speak with an authorised local partner.
Let insight power your next decision.