Graymont Energy commissioned a 600kW solar photovoltaic installation at a Tema Industrial Park manufacturing facility, the firm's largest single deployment to date and a step up in scale from the 400kW Greater Accra installation completed in January 2026. The system combines rooftop and ground-mount arrays and includes a battery storage component sized to support the facility's critical load through brief generation interruptions.
The Tema Industrial Park environment presents a distinct design context relative to standalone manufacturing facilities. The facility shares perimeter infrastructure and certain utility connections with adjacent industrial occupants, and the design had to account for grid connection considerations, fire safety standards specific to industrial cluster environments, and the operational requirements of a facility that runs on extended production shifts rather than a standard business-hours schedule.
Audit and load profile analysis took ten weeks, longer than the firm's standard eight-week timeline for commercial installations. The additional time reflected the complexity of the facility's load mix, which combines steady-state production loads with significant short-duration spikes during certain production cycles. System sizing had to accommodate both profiles without leaving meaningful capacity unused during steady-state periods.
The commissioned system covers approximately 58% of the facility's total electricity consumption across a standard operating week based on the first month of post-commissioning performance data. The residual grid draw is concentrated in early morning and late evening periods bracketing peak solar generation, and the battery component absorbs brief midday cloud-induced generation dips that previously caused voltage fluctuations in sensitive production equipment.
Financial modelling carried out during the audit phase projected monthly electricity cost savings of approximately GHS 124,000 against the facility's pre-installation baseline. Post-commissioning data from the first billing cycle showed actual savings of GHS 119,000, within 4% of the modelled figure. At that run rate, the system is tracking toward a payback period of just over four years.
The Tema project required Graymont Energy to scale its project management capability beyond what the firm has previously delivered. Multiple installation teams worked in parallel across the rooftop and ground-mount components, electrical integration required tighter coordination with the facility's existing infrastructure, and the commissioning sequence involved live load testing on a more demanding industrial load than the firm's standard commercial deployments.
Beyond the immediate client outcome, the project meaningfully strengthens Graymont Energy's positioning to take on larger commercial and industrial solar engagements. The firm now has a documented track record at the 600kW scale and the project management discipline to support multi-team installation work. The active enquiry pipeline includes several other large commercial sites at comparable or larger scale, and the firm is in design phase on at least two prospective installations expected to commission in the second half of 2026.