enee.io – Powering efficiency: Resolving overcharging challenges for sustained savings (Nigeria)

The enee.io energy monitoring system identified that a 48V VRLA battery bank in Lagos, Nigeria, was being overcharged, reaching a maximum of 2.35vpc (56.4v) and remaining there indefinitely. This overcharging caused energy loss of 6.2kWh per day and reduced the estimated battery life from 4.0 years to 2.1 years. By adjusting voltage regulation and implementing ongoing monitoring, the system estimates total daily savings of $7.12, consisting of $4.64 from extended battery life and $2.48 from reduced diesel consumption. The enee.io system, costing $340 USD for hardware and the first year's subscription, offers a projected return on investment of 48 days.

• The battery bank, consisting of 24 x 2V 1000ah VRLA cells, experienced overcharging where the charge voltage reached 2.35vpc (56.4v) and remained at that level indefinitely instead of dropping to a float charge of approximately 2.25vpc (54v).
• Overcharging led to significant technical degradation, including the risk of thermal runaway, plate corrosion, and 'dry out' via electrolysis, which reduces battery capacity and can cause irreversible damage.
• The overcharging issue reduced the estimated remaining battery life from 4.0 years to 2.1 years and caused a daily energy loss of 6.2kWh, which corresponds to an additional diesel consumption of 2.5 litres per day.
• Corrective actions through voltage regulation and monitoring are estimated to generate total daily savings of $7.12, with the enee.io system ($340 USD cost) providing a return on investment in 48 days.

APA

Alliance for Renewable Electrification (2024). enee.io – Powering efficiency: Resolving overcharging challenges for sustained savings (Nigeria). https://renewelec.org/case-study/enee-io-powering-efficiency-resolving-overcharging-challenges-for-sustained-savings-nigeria/

Chicago

Alliance for Renewable Electrification. enee.io – Powering efficiency: Resolving overcharging challenges for sustained savings (Nigeria). 2024. https://renewelec.org/case-study/enee-io-powering-efficiency-resolving-overcharging-challenges-for-sustained-savings-nigeria/.

Wikipedia

{{cite report |author=Alliance for Renewable Electrification |title=enee.io – Powering efficiency: Resolving overcharging challenges for sustained savings (Nigeria) |date=9 August 2024 |url=https://renewelec.org/case-study/enee-io-powering-efficiency-resolving-overcharging-challenges-for-sustained-savings-nigeria/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{allianceforrenewableelectrification2024eneeio, author = {{Alliance for Renewable Electrification}}, title = {{enee.io – Powering efficiency: Resolving overcharging challenges for sustained savings (Nigeria)}}, institution = {Alliance for Renewable Electrification}, year = {2024}, month = aug, url = {https://renewelec.org/case-study/enee-io-powering-efficiency-resolving-overcharging-challenges-for-sustained-savings-nigeria/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }