COMPANY

A WARM WELCOME

We are - together with our partners - your competent and reliable partner

when it comes to solutions for self-sufficient and regeneratively supplied

energy networks in the range from 3 KVA to 3 MVA. Our grids can be mobile,

off-grid or hybrid with integration into a public grid.

For the optimal use of volatile energy sources in the tropics,

we have developed a special and exclusively PV-based generator solution.

Depending on the overall demand situation, we can make economically viable use

of up to 95 percent of the available energy. In addition to PV generators,

battery systems play a prominent role in our solutions.

Our storage systems are mainly portable and scalable.

They can therefore also be used very well in the field of mobility with

two-, three- and four-wheeled electric mobility from 48 to 400 VDC.

We do not want to start a new power war - like the one between Thomas Edison

and George Westinghouse in 1890. Future energy sources, however,

will increasingly generate direct current, energy storage systems will also

almost always provide direct current. In addition energy consumers are final DC users,

or frequently-modulated AC consumers with DC link. Therefore direct use of DC

offers significant efficiency advantages.

Exploiting these consistently is a primary goal of our solutions.

For those solutions in the power range around 3 KVA,

we prefer to use 48 V DC with high volume manufactured components or products,

that are reliable, extensively tested, certified and reasonably priced.

Only where special conditions require an even more efficient,

more precise and thus more economical solution,

we rely on the development of our own products.

OUR SERVICES

Market observation

We continuously analyse the international markets in the fields of battery cell technology,

battery systems, PV module technology, inverters, DC/DC converters and PV generator designs. Furthermore, we closely follow the development of 2- to 4-wheeled electric mobility and in this

context especially the use of portable battery systems.

Concepts

Renewable energy sources include wind, water, sun, biomass and geothermal energy.

In most regions of the world, it makes economic sense to use a suitable mix of different types of sources.

In the case of small, self-sufficient supply solutions, however, this leads to considerable additional

costs that are hardly justifiable from an economic point of view. If a high level of supply security is also required, there is always a need for larger storage systems. With our special expertise in the application cases of "local supply in the tropics", "self-sufficient supply for mobile homes" and comparable

situations, we can offer economically reasonable and reliable supply solutions.

Simulations

Simulations are the most important and cost-effective solution for testing concepts. With our methods

and experience, we can identify the strengths, weaknesses, restrictions and limitations of an energy

supply system with little time and effort for PV generators combined with storage systems before

the real implementation. The simulation results can be used to identify any remaining deficiencies,

to find solutions for them or to confirm performance.

Developments

Our activities in the field of electronic circuit design focus particularly on efficient DC/DC converters for various application areas and the organisation of the distribution of charging and discharging power in cluster systems of often portable battery systems. The development goals focus on high efficiency over a broad power band and less on high efficiency in one power point. Our developments end with a product that has been extensively tested and fully certified in pilot series. The latter is then already carried out together with the later production partner or licensee.

NEWS

August 1, 2022

Portable battery systems 3rd part

Portable, i.e. easily replaceable battery systems are not the solution for everything, but they will be used frequently in numerous applications or world regions. At the end of the day, economic efficiency will always be the deciding factor. In areas with less robust and efficient power grids, the slow and less reliable charging process of a larger battery will take too much time. In certain applications, even the fastest charging process will still take too much time, and in applications with low annual operating hours, the use of the battery system will only become economical if there are other uses.

The partnership now agreed between Yamato Transport Co. Ltd (Yamato Transport) and the Commercial Japan Partnership Technologies Corporation (CJPT) aims to ensure that the standardisation and commercialisation of replaceable battery systems for commercial vehicles progresses rapidly.

global.toyota

February 16, 2022

Portable battery systems 2nd part

One wunderkind, ex-SAP executive Shai Agassi, has already failed at this with his company Better Place. The idea behind his project: Agassi wanted to cover entire countries with stations where batteries for electric cars could be exchanged and recharged. This was supposed to solve a core problem of the

e-car industry. In 2007, the electric cars could only cover relatively short distances before they had to pause again because they needed to be recharged. Now CATL, the world's largest Chinese cell manufacturer, and NIO, an up-and-coming Chinese electric car maker, are launching a new offering that has government backing, at least in its home market.

electronicdesign.com

January 18, 2022

Portable battery systems

Portable battery systems are often found in e-scooters. What is new now, however, is that a manufacturer of e-scooters is making its technology available to another manufacturer of motorised two-wheelers, which, in addition to the portable battery systems, also includes the matching charging stations. Today, there are at least three consortia worldwide that are striving to standardise portable battery systems. We are convinced that this will sooner or somewhat later lead to a global expansion, both in urban centres and in rural areas, of charging stations for at least one battery type.

techcrunch.com

October 12, 2021

The developments regarding battery cells until 2030

This article was published a year ago, but it is still up-to-date and one of the few well-founded and at the same time easily readable texts on this topic. In a sober consideration of the many aspects, it becomes clear which potentials the further developments of today's dominating Li-ion cell concepts have. Whether there will be additional and better alternatives for certain applications is, in our estimation, not of great importance. It can only get better. In addition to further increased safety and improved fast-charging capabilities, this decade will see a further cutting of manufacturing costs in half, more than 5,000 charging cycles and lifetimes of more than 20 years. This will reduce the cost of storing one kilowatt hour of energy from 15 to 30 euro cents today to around 4 to 8 euro cents.

silvano.com