Method for dynamically controlling a piece of electrical equipment

An electrical system comprising:

• a battery;
• a renewable energy source coupled to said battery;
• a controlling circuit for managing energy and controlling a power supply of a piece of electrical equipment associated with said battery and said renewable energy source, wherein said controlling circuit is configured to control the power supply of said piece of electrical equipment according to an adjustable reference time curve on the basis of at least one external factor and at least one internal factor, and a constraint that an integral over an operating cycle considered for said adjustable reference time curve is lower than a quantity of energy which can be allocated from said battery, during the operating cycle considered;
• and wherein said controlling circuit is configured to control the power supply of said piece of electrical equipment according to a rated capacity of the battery on the basis of at least one of a longest duration of an operating cycle, a maximum energy consumed by the piece of electrical equipment during the longest operating cycle, a battery output efficiency, an expected autonomy, and determining that the battery size is slightly less than the rated capacity of the battery.