evaluation under the requirements laid down by CEI 0-21 and CEI 0-16, SGS
validated that this product meets Italy’s strict technical requirements for
battery energy systems. This critical evaluation fully affirms HoyUltra’s high
reliability and quality.
HoyUltra is an
innovative all-in-one solution integrating vital
features such as liquid cooling,
fire isolation, gas detection and other safety systems within a single compact
design. Equipped with Hoypower’s top-notch liquid-cooling technology and
thermal management technology, this commercial-and-industrial-tailored BESS is
optimized for superior performance and safety across varied applications.
With the CEI 0-21 and CEI 0-16 certifications, Hoypower solidifies its position as a trusted industry leader, offering state-of-the-art BESS to support Europe’s renewable energy transition according to the highest international standards.
 Regulation CEI 0-21, “Technical reference rule for the connection
of active users and passive to the low voltage networks of electricity
 Standard CEI 0-16, “Technical reference rule for the connection of
active and passive users to the high and medium voltage networks of companies