When DC voltage is applied to the input of an energy storage inverter, large inrush currents will occur as the DC bus capacitance will initially appear as a short. Without the use of a pre-charge unit, these inrush currents can damage the batteries, the capacitors and IGBTs.
At Dynapower, we refer to engineering upgrades as a term used to describe putting a non-original part in a machine as opposed to a repair—which refers to a like part for a like part exchange. An easy way to understand this is if you blow out your tire and replace it with the exact same tire it’s a repair whereas purchasing a higher end tire would be an upgrade.
Our main goal when considering engineering upgrades is determining how we can bring your piece of equipment that you know and love and are comfortable troubleshooting to the next level. When it comes to meeting today’s demand and production requirements, engineering upgrades to existing rectifiers are a great solution for a lot of customers.
In the advanced energy storage market, lithium-ion batteries remain the primary battery technology for energy storage systems. They are used in a variety of storage applications from energy storage sited at commercial and industrial facilities to residential energy storage to multi-megawatt utility-scale energy storage installations.
Despite lithium-ion batteries’ market dominance, they aren’t the only available option. Dynapower has deployed our energy storage inverters alongside other battery technologies including flywheel systems and flow batteries. Here we take a deeper dive into how these batteries work.Read more
Recently, we covered the three main considerations to weigh when buying a rectifier. Now, let’s dive a little deeper and shed some light a common debate in the world of rectifiers. We’re speaking of course about SCR vs SMPS rectifiers. As you will see, the ultimate differences and similarities may surprise you.
First, let’s run through the characteristics of these two classes of rectifiers. A silicon-controlled rectifier (SCR) is a semiconductor power supply that meters electricity by opening electrical “valves,” working together as a team, to rectify electricity. The longer the “valve” is open, the higher the voltage leaving the rectifier will be.
SCR rectifiers are variable voltage DC power supplies that are low frequency, high ripple systems. These systems are rugged and have a history of durability in the market – a number of our customers have systems running after 40 or 50 years. They regulate and react steadily, carry a lot of power in big copper windings, and are fairly easy to troubleshoot with large, easy-to-identify components.
Dynapower is proud to announce that its DPS-500 DC-to-DC converter for solar plus storage has been certified for IEC 62109 from TÜV Rheinland. It is the first DC to DC converter designed for utility-scale solar plus storage applications to receive this important safety designation.
“Dynapower designs and builds the safest, highest performing energy storage inverters and DC to DC converters available today. This is further validation of the quality and safety of our energy storage solutions,” said Tim Varhue, Energy Storage Product Manager.
Massachusetts has become the first state in the nation to incentivize behind-the-meter energy storage for commercial and industrial customers. The recent incentive–ordered by the Massachusetts Department of Public Utilities (DPU)–would allow utility companies to pay customers who agree to use their energy storage systems during peak electricity demand hours to reduce their load on the grid..
The program is being offered through an electric utilities and energy efficiency provider collaborative called Mass Save. The programs are designed for Massachusetts utilities including National Grid, Eversource, Berkshire Gas, Blackstone Gas Company and other smaller utilities in the state.
Global energy storage systems are set to grow exponentially from 9GW/17GWh deployed as of 2018 to 1,095GW/2,850GWh by 2040, according to BloombergNEF.
BNEF estimates that the 122-fold increase in energy storage will require $662 billion of investment.
In a report published on 7/31/19 by BNEF titled Energy Stoage Outlook 2019, the research company predicts a further halving of lithium-ion battery costs per kilowatt-hour by 2030.
Rectifiers can last decades before needing replacement. But not all parts used to build this essential piece of equipment have the same life expectancies. Some circuit boards or semiconductors degrade as part of their natural life cycle, and will need to be replaced several times in the rectifier system’s lifetime. Leaving parts at their end of life installed in the rectifier can lead to:
- Loss of efficiency
- Loss of communication capabilities
- Loss of operator control
- System failure
- Injury or even death
When any of these conditions arise, companies need to assess the source of the issue and decide the best course of action. Customers have a variety of options to maintain their equipment. Some are by choice, and others by necessity.
Dynapower Announces New Financing Program to Accelerate the Adoption of Behind the Meter Energy Storage Nationwide
Dynapower is proud to announce the introduction of our brand new energy storage financing program. We’ve partnered with Lease Corporation of America to bring system integrators and buyers of energy storage systems a financing program that saves money and gets your new equipment up and running as soon as possible.
Our new energy storage financing covers the equipment purchase, installation, commissioning and training costs—up to 1 million dollars—all in one simple lease. Customers are also highly encouraged to take advantage of IRS Section 179 and deduct 100% of the cost of the energy storage equipment in the first year that the equipment is put into service. Use this free tax deduction calculator to see how much your business could be saving on new energy storage equipment.
Rectifiers are power systems that convert alternating current (AC) to direct current (DC) power. The applications in which rectifiers are used are seemingly endless—with everything from metal finishing in the automotive and aerospace industries to mining, military defense and waste water treatment.
When it comes to purchasing a new rectifier or determining if it would be more cost effective to upgrade or refurbish, there are three main areas to consider: Process, environment and people.
Often, customers get lost in questions such as: Air vs. water-cooling? Switchmode or SCR type? Manual controls or PLC?
Like anything else in life, the more you put into researching and understanding the type of rectifier you need and more importantly why you need it—the more successful your operations will be.