Safe - Industrial

SAFE as an energy load manager in on-grid systems, with or without renewable energy generation.

A customized solution for small and medium enterprises, seeking to cover a large part of consumption related to production and even disconnection of the customer from the grid or production in special situations. Directed at customers with a contracted power >15 kW, with or without the possibility of installing renewable energy, with either a single or three phase supply.

The solution will seek to lower the energy bill through the simultaneous implementation of two solutions: self-generation (if it is possible to install renewable energy generating systems) and/or through the management of the purchase of energy at off-peak rates for storage and subsequent use.

The storage shall be sized in order to have the maximum degree of independence from the grid, considering storage of above 600 kwh. For systems of this type, an additional advantage is obtained with the UPS mode, as this prevents major disruptions in business activity in the event of any outages or malfunctioning of the conventional grid.

This option offers two possibilities:

Systems in which there is no renewable energy generation, in other words power can only be supplied from the conventional grid.

In this hypothesis, SAFE will be programmed to remotely connect with the official databases providing the daily publication of the official figures for the energy sales prices for the following day, and to automatically purchase the expected amount of energy in the off-peak time bands, to store it and make it available for consumption at the desired time. The amounts of energy stored will depend on the SAFE equipment storage capacity. This will be suitably sized to cover at least 90% of consumption requirements. Should the SAFE equipment be unable to supply the amount of energy for a one-off demand (for example to start up a motor, or item of equipment) then the consumption peak would be drawn from the conventional grid. Only the consumption peak will be drawn from the conventional grid, and this will be done automatically with no zero-point micro-cuts, so that it will be imperceptible to the customer.

Systems in which, in addition to the conventional grid, some renewable energy generation is also possible. In other words, part of the energy consumed is self-generated and part is from the conventional grid (hybridization).

The energy stored by the SAFE equipment is sourced from renewable energy generation (self-generated) and from the conventional grid. The SAFE equipment is programmed to store 100% of the renewable energy generated and to only draw the maximum permitted storage balance from the grid. As for mode 1.1. above, the purchase of energy from the grid shall take place through the remote connection with the official databases providing the daily publication of the official figures for the energy sales prices for the following day, in order to automatically purchase the forecasted amount of energy in the off-peak time bands, to store it and make it available for consumption at the desired time. In this way, the energy consumed shall be: 100% of the self-produced renewable energy, whilst the balance shall be sourced from the conventional grid and automatically purchased at off-peak times.


In this operating mode, the ENERGY BILL SAVING will be the sum of the following concepts:

Energy purchase

The energy purchased from the conventional grid at the lowest price published in the official pages for the price band for the following day, is the energy which is strictly necessary to cover the storage requirements calculated for the consumption habits, and that required to cover the power peaks that may be required by the customer at any specific time.

Lower power term.

Given the fact that the energy stored in the SAFE equipment is the basis of consumption, then there will be a reduction in the contracted power, as the customer only needs to contract the power required to cover any consumption peaks in which the said storage is unable to meet demand.

As an Energy Load Manager in off-grid systems, incorporating renewable energy generating systems (solar, wind-power, biomass, etc.)

In this case the customer has the possibility of installing one or more renewable energy generating sources. A Detailed Energy Study (DES) of the customer's needs and load curve makes it possible to design the appropriate renewable energy generating system to produce sufficient power to guarantee self-consumption and disconnection from the conventional grid. Additionally, and as a way of over-guaranteeing supply in the event of demand peaks or excessive, unplanned consumption, it is possible to install a gas or fuel powered genset (micro-generation) to solely operate at times when there is an energy storage shortage or an alarm is triggered. In this scenario, 100% of the energy is self-produced, and there is therefore no conventional energy bill given the fact that the system is disconnected from the utility company.