A pilot project of Dortmund Energy Company Innogy in Germany tested a 450 MHz radio network based on LTE mobile radio technology. At the Gersteinwerk gas power plants in Dortmund and Wayne, partners installed several antennas. The technology can be used to control systems in the power grid, connect to smart meter gateways, and perform emergency communications in black situations. "This is the first pilot project in Germany, including the 450 MHz band, LTE, voice and data communications," said Jürgen Tusch, manager of Innogy's telecommunications department at a project presentation in Dortmund. For example, in Germany, 450 MHz Band radios, but they use CDMA technology. Therefore, only significantly lower transmission rates can be achieved at the UMTS level.
Frequency allocation from 2021: waiting for policy
The testing phase begins when the entire energy industry reaches 450 MHz on the subject. In the future, technology will become the standard for grid communication and control. That's why companies and associations require the Federal Network Administration to outsource radio frequencies exclusively to the energy industry. However, a dispute over the right to use was triggered by German security agencies bidding (according to the Energy Gate report). A subsidiary of Allianz Insurance Company of the Netherlands holds a license for this frequency until the end of 2020. It is reported that a decision will be made before Christmas, who will decide to grant the 450 MHz frequency from 2021.
Innogy manager Tusch made it clear that contracts in the energy industry are very important. He said it was the only way to stop the energy transition without sacrificing supply security. Facing more and more decentralized power generation, the industry needs communication networks that are secure, highly available, and black box-proof. Tusch said: "The 450 MHz radio network is ideal because it has the technical characteristics to meet all key applications." The advantage of 450 MHz compared to other radio networks is that for a radio cell 20 km away, the range is wide, and the building Good material penetration and relatively low cost. "With the nationwide expansion, we expect to invest 300 million euros," Giesing said.
Without 450 MHz radio network, no energy turnover
So far, distribution network operators have been using satellite technology and mobile phones for network control in 3G and 4G networks. In the event of widespread power outages, actors now face major challenges to restore power supplies. Given the expansion targets of decentralized power plants, smart measurement systems and electric vehicle charging infrastructure, it is foreseeable that this problem will be exacerbated. "The situation is getting more and more critical," Tusch concluded. The nationwide 450 MHz radio network will provide increased security. Giessing also sees no other option.