Wednesday (21-August-2019) — New Jersey

Backyard Summertime Nature in New Jersey.

Daily Walkabout, today with a Nikon D810a camera and 70-200 mm f/2.8 VR lens. This lens doesn’t quite have the reach, but the high resolution sensor allows the images to be blown up. The Hummingbird Clearwing moths really like the Bee Balm flowers.


Click on the above image to access the individual images in the slideshow.


Daily Electric Energy Used (58.7 kWh) from Sense and Daily Solar Electric Energy Produced (43.2 kWh) from SolSystems and Locus Energy. The WaterFurnace geothermal HVAC had to work hard (21.4 kWh) because the temperature outside went above 90°F. Daily net deficit 15.5 kWh.

One note — the WaterFurnace Symphony software indicated the system used 13 kWh, however the Sense Energy monitor indicated that the geothermal heat pump used 21.4 kWh. I tend to believe the Sense numbers since they more closely the energy being recorded at the external power company (PSE&G) meters. I’ve asked the WaterFurnace folks in the past about the discrepancy, but they didn’t have a good answer. The Sense folks told me they thought that the WaterFurnace/Symphony system was only measuring one phase of the energy even though the system is powered by the 220V circut (using two phases). I wish an electrical engineer that understands this better would correct me here.

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Author: David Mathre

I am a scientist by training (Eckerd College, BSc; Caltech, Ph.D.). I worked for 27 years as a Chemist in the Pharmaceutical Industry developing processes to manufacture medicines for human and animal health. I now spend my time as a photographer and world traveler. My interests include the natural world, wildlife, landscapes, sky, and seascapes, travel, and astrophotography. I look for unique ways of viewing the world and presenting my images. I have traveled to over 55 countries in six continents, often on Semester at Sea voyages. While at home in New Jersey, I spend time on home renovation and expansion of a wildflower garden/meadow.

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