Jordan A. Davis

Reverse DC-Coupled PV+Storage

In 2018, Dynapower deployed the first DC-DC converter in a DC-coupled PV+S (PV + storage) configuration at an existing utility-scale PV+S installation.

Since then, the innovative solar-plus-storage solution has gained traction due to the ability of DC-coupled PV+S to increase PV energy capture and decrease the costs as compared to AC-coupled energy storage solutions.

Recent reports from IHS Markit and Wood Mackenzie (GTM) forecast DC-Coupled PV+S will be the standard hybrid PV+S topology by 2023 because of its economic advantages over AC-coupled solar plus storage solutions.

Dynapower is currently delivering two DC-coupled PV+S configurations for our customers. Each has specific use case advantages. We work closely with our customers to determine which DC-coupled configuration is best suited for the customer’s application. Here we examine each.

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Jordan A. Davis

SMA and Dynapower Collaborate on DC-DC Converter

We recently collaborated with SMA on a 500-kW DC-DC converter for use with an SMA inverter for utility-scale solar+storage projects. We displayed the integrated system and our own Chris Larsen—Director of Business Development at Dynapower—discussed the system alongside SMA’s Energy Storage Product Manger Tim Stocker at Solar Power International for an interview with our good friends at Solar Power World.

The SMA DC-coupled PV central inverter includes connection points for up to six DC converters. Dynapower worked with SMA extensively on this inverter to ensure the solution is as streamlined and as effective of a product as possible.

The DC-DC converter marries up to the SMA Sunny Central Inverter and can be put in parallel with other units to help developers size their storage package appropriately to match their solar array.

This air-cooled system has the capability of both operating as a current source device but also can operate as a voltage source device where it’s actually emulating the PV array, as Larsen points out in the video.

This 500-kW DC-DC converter boasts bi-directional functionality so you have the flexibility to not only charge from solar but also from the grid. The unit also boasts many different use cases for the DC-coupled energy storage market such as clip loss capturing and time shifting.

Check out the video to learn more from Chris and Tim.

Jordan A. Davis

Dynapower Launches New Preventative Maintenance Plans

A couple weeks ago, we published a piece on the different types of maintenance approaches for your rectifiers and industrial power systems. These included three types of maintenance: reactive maintenance, preventive maintenance and predictive maintenance.   

In this piece, we highlighted the disadvantages of adopting a purely reactive maintenance approach and shed some light on the benefits of adopting a preventive maintenance and ultimately, a predictive maintenance approach.

To recap, preventive maintenance is primarily based on anticipating failures and updates based on manufacturer recommendations while predictive maintenance is all about using data analysis to dial in your machines to achieve the maximum lifetime value out of them and give you the greatest process and product possible.

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Jordan A. Davis

Dynapower Volunteers Roll Sleeves Up at Habitat for Humanity Build Day

At Dynapower, we take our commitment to the local community very seriously. As such, we organize company volunteer days where employees are encouraged to take a day to help out local organizations. 

Our latest Dynapower Volunteer Day happened on Friday, October 18th in Burlington, Vermont. 

Green Mountain Habitat for Humanity had been looking for eight volunteers to help out at their Convent Square project in Burlington. Dynapower was happy to fill all eight spots and our volunteers had a blast aiding in the construction of a home for a local family in need. 

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Jordan A. Davis

How Energy Storage Can Transform Grid Resiliency

Mass blackouts and power outages have been plaguing hundreds of thousands of Californians in the past week. The outages are a result of one of the state’s largest utility companies–Pacific Gas & Electric–shutting off power to avoid potential wildfires. 

This has sparked quite a debate among the public and media. PG&E has received criticism from officials that they are putting corporate profits over public good and safety. 

“Californians should not pay the price for decades of PG&E’s greed and neglect,” said California Gov. Gavin Newsom on Twitter. “PG&E must be held to account.”

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Jordan A. Davis

3 Reasons to Meet With Dynapower at Solar Power International

As part of the North America Smart Energy Week, Solar Power International will be taking place in Salt Lake City from September 23rd through the 26th and Dynapower is proud to be a part of this excellent event. 

Solar Power International will be hosting the largest gathering of solar industry professionals and vendors in the country. We will be posted up at Booth 3431 throughout the week and would love to discuss our next generation of energy storage systems with you!

Here are three reasons to come visit us at SPI. 

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Jordan A. Davis

The 3 Types of Maintenance Approaches for Industrial Rectifiers

When it comes to preventative maintenance for industrial rectifiers, there are three levels that we most often see. By understanding these three levels of preventative maintenance and determining what category you fall into, you can begin thinking about how you can adopt new a higher-tiered strategy to save money and become more active rather than reactive. 

Level I: Reactive Maintenance 

The reactive form of preventive maintenance is akin to going in for an oil change every 3000 miles. You do it because that’s what you’re told to do. You don’t perform any checks or maintenance on your vehicle other than changing whatever the manufacturer tells you to change. 

The reactive maintenance approach basically involves taking action only when a problem has arisen. “When your equipment is down and there’s flames and smoke and downtime, you call us to fix it,” says Dynapower’s Repairs Supervisor Remington Schieffer. 

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Jordan A. Davis

Dynapower’s Black Start Technology for Microgrids

Islanded operation, or operation in the the absence of grid connection, is a primary application of energy storage systems. In the case of a microgrid, the ability to island enables energy storage to provide backup power, increasing resilience and reliability of the microgrid.

In the event a microgrid were to be de-energized due to a grid outage, or enter a “black out” state, Dynapower has developed a simple and reliable approach to black starting or “restarting” the microgid’s energy storage inverters.

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Jordan A. Davis

Dynapower Company Video: Who We Are

Since 1963, Dynapower has been a leader in the development and production of purpose-built solutions in the power conversion industry.

Our vast array of products–which include energy storage systems, inverters, DC converters, rectifiers and custom transformers–are designed and built in our 150,000 square foot vertically integrated facility right here in South Burlington, Vermont. 

The video below provides a great insight into who we are and what we’re about: