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

A case study by enee.io on a 48V battery bank at a bank branch in Lagos, Nigeria, identifying that overcharging was reducing the battery lifespan from a potential 4.0 years to 2.1 years and increasing diesel consumption.

• An analysis of a 48V battery bank (consisting of 24 x 2V 1000ah VRLA cells) installed in August 2023 revealed that overcharging was occurring because the battery bank reached a maximum of 2.35vpc (56.4v) and remained there indefinitely after becoming fully charged, rather than dropping to a float charge of approximately 2.25vpc (54v).
• Overcharging of the VRLA battery bank leads to several technical failures, including the breakdown of water into hydrogen and oxygen gases (electrolysis) causing 'dry out', plate corrosion of positive plates, and the risk of 'thermal runaway' which can cause electrolyte leakage or explosions and fire.
• The overcharging issue resulted in a significant reduction in battery longevity and increased operational costs, with the battery bank's estimated end-of-life reduced to 2.1 years compared to 4.0 years if issues were resolved. Additionally, overcharging caused a daily energy loss of 6.2kWh, which equates to an extra 2.5 litres of diesel consumption per day.
• Implementing the enee.io system and recommended voltage regulation adjustments costs $340 USD (including hardware and first-year subscription) and is estimated to provide a total saving of $7.12 per day, resulting in a return on investment (ROI) of 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} }