The quest for a national smart grid to reduce energy costs has led to the exploration of satellite SCADA as the technology of choice. Satellite SCADA (Supervisory Control and Data
Acquisition) solutions have an upper hand over other networking technologies because of its availability, path diversity, support system and ubiquity. The technology is an innovative form of IP based communication. Smart grid requirements dictate that their applications need a strong network with a remote communication infrastructure. In addition, an IP based satellite platform can provide real time data exchange, broadband reach and operational visibility.
Flexible Solutions for Smart Grid Communications
M2M Satellite SCADA technology offers flexible solutions for smart grid communications through facilitating control over energy costs and consumption. One of the key areas of the smart grid is the integration of two way communication making it an interactive and dynamic infrastructure. The operational efficiency and network reach across the utility territory is increased through:
– Advanced metering infrastructure (AMI) – smart grids require smart meters to assist consumers to regulate and manage their energy consumption and provide utilities with visibility of demand. The meters are connected to an assembly point through a local interlocked wireless network. These assembly points collect information on usage within geographical area and send the data to the utility centers backup through a cellular link.
– Distribution automation- Electricity utilities can use BGAN (Broadband Global Area Network) or BGAN M2M services along power distribution channels as primary or secondary links to the data center. A single IP data connection, also two way, provides automated monitoring and control of switches and devices. This enables the utilities to maintain constant surveillance of their distribution network. The surveillance reveals voltage fluctuations, service demands and outages. The build of the BGAN and BGAN M2M terminals makes them ideal for pole mounting in most locations.
– Substation connectivity- this is ideal for hard to reach areas where fixed line communications may be too expensive to install. Immarsat provides satellite SCADA for the electricity substations either as a standalone solution or together with VSAT. BGAN is flexible enough to serve both low volume and high frequency and can therefore be used as a backup for communications at any substation.

There are common operational requirements that all utilities have to support service crews while on the field. Communication is one of these operational requirements. Satellite SCADA helps in two ways to offer reliable communication for daily operations:
– Workforce mobility- constant communication between engineers and maintenance crews with the headquarters is essential for seamless workflow. Whereas cellular networks are capable of providing this, they are rendered useless in remote areas and in exchange of large data volumes due to limited bandwidth. Using the BGAN network, it is easy to use the satellite SCADA facilities both for bandwidth and voice enabling seamless communication on the field and the headquarters.
– Disaster recovery- continuity in business is vital for utilities that provide essential services in this case electricity. Therefore, responses during natural and artificial disasters that affect the working of terrestrial networks are vital to the continuity. The alternative communication path provided by satellite SCADA helps maintain the channels of communications. For example, Immarsat offers a secure fully equipped communication network that protects the resources and data on the smart grid. The network can also be used to direct operations or restore them completely independent of cellular technology.
The ubiquitous nature of satellite SCADA is the perfect option for utilities that are looking for a bridge between their smart grids and terrestrial network coverage hence achieving a significant improvement in smart grid applications and their communication needs across their entire service jurisdiction.

The network of this geostantionary satellite covers North American and tip of Central America, the Caribbean, Hawaii, and coastal waters. While users of terrestrial land mobile radios have to depend on the coverage of cell towers, satellite dispatch radio users rarely experience service interruptions because of the singular network structure. During emergencies, should terrestrial land based communications become compromised, satellites are the only viable option for communications.
The MSAT-G2 push to talk radio communicates with the lightsquared satellite network and provides push to talk and PSTN voice services for all of North America and the northern portion of South American and the Carribean. The MSAT-G2 is both lightweight and practical, as it can be installed in vehicles, buildings, or put together as a “Go-Kit” for portable satellite communications. The “Go-Kit” comes in a water-resistant durable package that also comes with a battery that delivers power when on the go.
Many different off the shelf interoperability modules and vehicular repeaters are compatibleMSAT G2 Satellite Radio with the MSAT-G2. It is possible to have interoperation between the MSAT-G2 and multiple different models and brands of wireless phones and radios with Push to talk capability using the interoperability modules. The range of the MSAT-G2 installed in a vehicle can be extended using vehicle repeaters. That set-up allows public safety workers to maintain connectivity in a car that has an LMR portable radio. The vehicle then works as the satellite repeater, allowing him to continue communications.
Lightsquared uses a “trunking” concept in their push-to-talk service that allows many different users to share a group of channels with the simple press of the PTT button. The network is designed to be as effective as possible despite having limited satellite power and bandwidth. Satellite power and call-handling resources are managed using demand assigned communication channels. “Call types” are also employed in the network to achieve the same results. When PSTN and cellular network congestion becomes a problem, Lightsquared’s group oriented communications take care of the issue by allowing large numbers to communicate on a single set of frequencies without ever using PSTN. A pre-defined period of activity defines when a frequency will be released.
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By being able to deliver almost 37 times as much data as the competition, IsatData Pro has the ability toisatdata pro satellite m2m meet the increasing demand for richer information in the service. Businesses are now able to diversify their operations and share more via e-mail, electronic forms, remote management and more. The applications delivered by this M2M Satellite service include the maintenance of driver logs, text messaging remote workers, vehicle telemetry information, and the control and management of fixed assets.