Traditional and current electrical design practices for Voltage Drop overlook best practices relevant for digital age facilities such as data centers, robotic manufacturing complexes, and more. It is time to re-think current practice to capture extreme savings in both energy use (at least 7%) and electrical equipment (over-specification of equipment -- too much expensive copper).
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Click to watch: Shark Bait: 7%+ in Energy Savings Watch to see how PowerCalc applies known science to save 7%+ of electrical energy use. At the NetZero Accelerator of the US Green Building Council's LA Chapter, PowerCalc presented all the details to a shiver of sharks in a feeding frenzy. Watch the video to see the action for yourself. Hi, I’m June Adams, CEO of PowerCalc. Let’s talk about saving at least 7% of electrical energy use in each circuit, each building, and each city. A dramatic proposition. There are 2 electrical delivery systems…one is the power grid and the other is the electrical distribution system inside the building. The conductor is the single longest link between where electricity is generated and where it is used…but no one is talking about it. Why? Because designing the electrical distribution system is complicated…about 2000 calculations for a 10,000 SFoffice building. PowerCalc is patented software that automates these calculations. It designs differently adding actual electrical demand loads from the circuit to the grid’s entrance to the building or bottom-up. In contrast, our competitors, design from the top-down basing their calculations on estimates. Simply, PowerCalc’s 7.5 M integrated equations let lots of great things happen—exacting accuracy, fast design, easy, and green. And, for the first time, the detail of specifying conductor sizes is easily possible resulting in incredible savings in electrical energy use, electrical equipment / copper, and SF of space. All of this is based on established science. In 1827, Ohm’s law identified the measurement for the electron’s difficulty in passing through material. If there is resistance, heat is produced indicating energy losses. But correctly sizing conductors reduces this resistance and also reduces heat and energy loss. It is time to implement established science for energy savings of at least 7% with PowerCalc. That’s close to $17 per 20 Amp circuit per year. And, that’s enough energy to run a water heater for 7 days. What about materials and space? A recent backup generator installation called for (10) 112 kVA transformers. In a peer review, PowerCalc re-specified this equipment downsizing to (10) 30-45 kVA transformers for over $2 million in savings in a third of the SF of space. ROI is about 2 years, also calculated by PowerCalc. Simply, it is time to implement established science for energy savings of at least 7% with PowerCalc. Last, PowerCalc is well recognized. We’ve included information on our great team as well as a few case studies for your review. Thank you, and it would be great to speak with interested parties about possible investments and pilot projects. |
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| And remember, we have a free live / real time demonstration on the first Friday of each month: FREE Demo, Friday, June 4th at 12 pm EST . And here is a video of a recent demo Video of PowerCalc Demonstration Hope you will join us! Thank you for your support! Stay well. |
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In a peer study,
PowerCalc was used to review the installation of a backup generator.
The electrical design for the installation specified ten (10) 112.5 kVA transformers. That's a lot of transformers, an oversight easily identified by a seasoned professional. This specification is about three times (3X) the amount of electrical power typically designed for such a facility (10W / SF instead of 3 W / SF).
Running the same design through
PowerCalc resulted in a reduction of this specification for transformers instead to ten (10) 30 kVA to 45 kVA transformers. This "downsizing" resulted in over $2,000,000 in savings by not only reducing the size of the transformers, but also the related conductors and conduits.
For all involved in construction every day, these types of mistakes are not uncommon. These issues arise from the current electrical design practice of using "rules of thumb", makeshift spreadsheets, and software that "designs" from the
top-down
(
estimating
the total electrical load at the start of design). The accurate design approach is to instead know the
actual
electrical demand load by adding electrical loads from the circuit to the facility's connection to the power grid (
bottom-up). This
bottom-up
approach is
PowerCalc's patented design methodology.
In contasting approaches,
guestimating
the size of the electrical load in conjunction with pre-sets for panelboard sizes, transformers, equipment disconnects, feeders, and overcurrent protection devices at the start of the project may lead to an
inaccurate
baseline on which to build the electrical engineering design instead of an
accurate calculation of the
Total Electrical Load
based on the project's
actual
electrical demand.
This distinction in approach is important as electrical equipment that is (1)
oversized
results in increased costs for the developer and/or owner for expensive electrical equipment as well as wasted electrical energy and (2)
undersized
results in a potentially increased risk to safety (fires).
FYI: the initial design was done by an engineering consulting firm ranked in the top 100 nationally using leading electrical design software with a top-down design approach.
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