The graph of the daily production of one of our plants, dated 5 December 2024, shows an interesting case for analysing the opportunities and criticalities of photovoltaic energy management.

1. Initial phase: morning growth

Time: Around 08:00 hours.

Production: Gradual start, in line with the increase in solar irradiation.

This phase reflects the normal behaviour of an efficient photovoltaic system, which follows the solar cycle.

2. Peak phase: maximum production

Time: Around mid-day.

Production: Reaching the peak, with stable and optimal output.

During this phase, the plant works at maximum available capacity, taking advantage of the favourable atmospheric conditions.

3. Critical phase: production stoppage

Timetable: In the afternoon.

Production: A sharp drop in production.

Cause: Neither an atmospheric nor a technical problem, but the saturation of the power grid, which prevented further energy input.

Consequence: The inverter was forced to stop or reduce production, leading to a loss of turnover and a waste of potential energy.

Problems and opportunities

The critical issues encountered

Saturated grid: The lack of capacity of the grid to absorb all the energy produced is a common limitation in some areas.

Economic loss: Every hour of energy not fed in equals lost profit for the plant and its users.

Possible solutions

Short term:

Collaboration with the network operator to monitor and resolve frequent saturation events.

Medium- to long-term:

Storage systems: Integrating storage batteries, such as sodium ion batteries, allows excess energy to be stored and used later, reducing dependence on the grid.

Management optimisation: Adopt solutions that best balance production peaks and consumption.

Why storage systems are essential

This case clearly demonstrates how important it is to have an advanced storage system capable of

Maximising the value of the energy produced.

Reduce waste.

Ensuring greater energy independence.

Sodium ion batteries are an ideal solution, both for their efficiency and environmental sustainability. With these systems, we can optimise photovoltaic production and successfully meet the challenges of grid saturation.

Investing in intelligent energy management solutions is not only a strategic choice, but a necessity for a more sustainable and profitable future.