Redwood Energy
Redwood Energy
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Grid-Interactive Load Flexibility Control of Multifamily Heat Pump Water Heater Systems
Evan Green is a Research Engineer highly experienced in applying Commercial Heat Pump Water Heaters (HPWH) to Domestic Hot Water Systems in Multifamily and Commercial buildings. As a member of Ecotope’s Technology Transformation Team, he works closely with HPWH manufacturers to optimize the design of new products; with utilities to test the efficiency and reliability of various plumbing configurations, and performs post-installation monitoring, analysis, and troubleshooting of HPWH systems. He is a subject matter expert in Ecotope’s education and training program for developers, installers, and utilities. Prior to joining Ecotope, Evan was an Applications Engineer for Colmac WaterHeat. In this role, he coordinated plumbing, mechanical, electrical, and controls installation, performed startup and equipment troubleshooting, and educated design firms new to HPWH technology.
Greg Pfotenhauer's career began at Redwood Energy in 2013, studying real-world performance in state-of-the-art all-electric multifamily buildings in California. He has continued to work with Redwood as a partner in various other endeavors while at Build It Green, Franklin Energy, and now as principal at Artemisia Energy which provides research services, data analysis, modeling, and general consulting services for the energy industry. Greg lives in Reno, NV with his partner and two dogs.
Переглядів: 85

Відео

Ask Sean Show November 11: How to Electrify Your Holiday!
Переглядів 21Місяць тому
This episode is a holiday special featuring our electrification gift guide!
Fast Path to Clean Indoor Air
Переглядів 252 місяці тому
Laura is the Executive Director of 350 Bay Area and 350 Bay Area Action. After a long career providing strategy and marketing consulting to large corporations and startups, Laura left the corporate world to pursue her passion: addressing injustice. Because the changing climate amplifies injustice everywhere, it was a natural fit to work with the 350 Bay Area family to work on getting real clima...
Are we on the Path to a Decarbonized Future?
Переглядів 432 місяці тому
Panama Bartholomy is the Director of the Building Decarbonization Coalition, a highly effective team of 70 staff working with industry, elected officials and regulators to eliminate greenhouse gas emissions from the built environment. Previously Panama worked as the Advisor on Energy and Natural Resources to California Assembly Speaker John A. Perez, served as Deputy Director of the California ...
Managing Residential Decarbonization
Переглядів 1052 місяці тому
Tom Kabat is a mechanical engineer with more than 40 years’ experience in hands-on building science, utility program design, implementation, and utility resource planning. Tom partners with others in electrification design projects for dozens of homes, co-authoring guides to electrification, developing a Power Efficient Design practice aka “Watt Diet” technique for making electrification of bui...
Eco-Detroit Model
Переглядів 102 місяці тому
Amber holds 2 degrees from the University of Michigan, with an engineering undergraduate background and master's degree specializing in Sustainable Systems and Environmental Justice. Her academic journey was enriched by practical experience, including collaboration with EcoWorks to create a roadmap for resiliency hubs in Detroit. Recently, she has applied her knowledge in sustainability project...
California Electrification Retrofit Case Studies
Переглядів 722 місяці тому
Andrew is Co-Founder and Principal at Carbon Zero Buildings, a general contractor focused on multifamily electrification retrofits. Andy or teams he has led have successfully executed over 40,000 units and $40 million in multifamily energy retrofit construction projects in California over the past 7 years. Over 2,000 units were multifamily electrification retrofits.
Hoopa Valley Public Utilities District
Переглядів 252 місяці тому
Linnea Jackson is a member of the Hoopa Valley Tribe in Northern California. For over 4 years, she has served as General Manager for the Hoopa Valley Public Utilities District (HVPUD). HVPUD’s mission is to provide utility services that advance tribal strategies to grow economic development, build a strong foundation of utility infrastructure, and ensure a framework for quality growth and expan...
Ask Sean Show September 30, 2024 How to electrify your home!
Переглядів 282 місяці тому
On this episode we're exploring a case study on a one story, 2 bedroom 1950 beach bungalow and Sean advises on alternative ways to electrify this home.
Let's Get Rooftop Solar Growing For Everyone
Переглядів 522 місяці тому
Dave Rosenfeld is the Executive Director for Solar Rights Alliance, a nonprofit association of California solar users where they believe in the right to make energy from the sun without unreasonable interference from utilities. He has over two decades of experience in organizing, campaigning, policy making, fundraising and management experience aimed at empowering people to better determine the...
Equitable Decarbonization in Practice
Переглядів 802 місяці тому
Jasmine Graham (she/they) is a passionate advocate for a healthy, sustainable, and just world. She is currently the Executive Director at Mid-Hudson Energy Transition, where she is advancing an equitable, local renewable energy transition in the Hudson Valley of New York. Prior to that, she served as the Senior Equity and Affordability Advisor at the Building Decarbonization Coalition, the Ener...
How to Electrify Without Panel Upsizing
Переглядів 3903 місяці тому
Sean Armstrong and Tom Kabat join GreenHome Institute to discuss how to electrify without panel upsizing.
Ask Sean Show August 26, 2024 - CCl Electrification Action Team
Переглядів 313 місяці тому
This session of 'Ask Sean' includes the CCI Electrification Action Team and the education on clean energy.
De cocina de gas a cocina de inducción sin humo
Переглядів 155 місяців тому
Película creada por Alex Sandoval, comisionada por Redwood Energy. En esta película vemos los peligros que puede causar una cocina a gas para su abuela y el cambio que hicieron a una cocina de inducción libre de humo. ¡Comidas deliciosas preparadas de manera segura!
Healthy Homes for All - Sean Armstrong
Переглядів 297 місяців тому
Sean Armstrong is featured in a workshop exploring the barriers and opportunities for electrifying renter-occupied housing units in our communities.
Ask Trang Show May 14, 2024 - Home Electrification (Vietnamese)
Переглядів 107 місяців тому
Ask Trang Show May 14, 2024 - Home Electrification (Vietnamese)
Ask Sean Show April 30, 2024 - Home Electrification
Переглядів 657 місяців тому
Ask Sean Show April 30, 2024 - Home Electrification
Redwood Energy x NeoCharge
Переглядів 4597 місяців тому
Redwood Energy x NeoCharge
Ask Sean Show May 1, 2024 Live Better Electrically
Переглядів 788 місяців тому
Ask Sean Show May 1, 2024 Live Better Electrically
From Gas to a Smoke-Free Induction Stove
Переглядів 368 місяців тому
From Gas to a Smoke-Free Induction Stove
Ask Sean Show October 30, 2023 Electrify your home!
Переглядів 64Рік тому
Ask Sean Show October 30, 2023 Electrify your home!
The Next EPIC Challenge: Meridian at Corona Station
Переглядів 327Рік тому
The Next EPIC Challenge: Meridian at Corona Station
Heat Pump Retrofits Part 1
Переглядів 65Рік тому
Heat Pump Retrofits Part 1
Nate Adams Part 2
Переглядів 19Рік тому
Nate Adams Part 2
Nate Adams Part 1
Переглядів 36Рік тому
Nate Adams Part 1
Heat Pump Retrofits Part 2
Переглядів 33Рік тому
Heat Pump Retrofits Part 2
Heat Pumps for Hot Water Part 1
Переглядів 35Рік тому
Heat Pumps for Hot Water Part 1
Installation Pricing Ductless Mini Splits
Переглядів 32Рік тому
Installation Pricing Ductless Mini Splits
History of Heat Pumps
Переглядів 136Рік тому
History of Heat Pumps
Heat Pumps for Hot Water Part 2
Переглядів 29Рік тому
Heat Pumps for Hot Water Part 2

КОМЕНТАРІ

  • @rickrys2729
    @rickrys2729 23 дні тому

    Utilities like to remotely operate devices like EV chargers, HVAC, or HPWH's. EPRI is trying to make a standard for this communications. Your sophisticated design implies dynamic pricing with local control. Looks like a good but custom control system. Here in MA, the peak savings are to reduce power during peak hours each month, so not every day. Systems with solar will want to run HP when it is sunny -another complication. I'll bet you hear about it if you run out of hot water.

  • @ArmpitStudios
    @ArmpitStudios Місяць тому

    What a horrible thing to do to a vintage film, cutting it up to suit your whims. This sliced up version sucks. So you didn't think the intro was needed. Well, it was. And why cut out about 9 seconds of the announcer asking if we know what circuits are and the woman answering? That's a really stupid edit.

  • @tjlovesrachel
    @tjlovesrachel Місяць тому

    How was this edited for “today”???

  • @luisreyes1963
    @luisreyes1963 Місяць тому

    Had all that electric gimmickry were available today, the utility bill would be obscenly high. 🔌

  • @AckzaTV
    @AckzaTV Місяць тому

    sorry but "electric servants" just sounds a little too racial for some reason. I just imagine a Prince album called 'electric servants' with Prince as a cartoon talking purple toaster like from beauty and the beast.

  • @AckzaTV
    @AckzaTV Місяць тому

    sometimes i just play these old disney documentaries on my parents 4ktv via youtube app they dont even know about, and2 they walk by and hear these amazing old memories. I did notice however that AMC or turner classic channel seems to slip in old obscure public domain film reels between the old classic movies.

  • @UniqueunlimitedBD
    @UniqueunlimitedBD 2 місяці тому

    The UA-cam channel video's SEO rating is poor of Due to this your subscribers and views are not increasing, and the titles, descriptions, and keywords SEO should be done correctly only then you will get good results. the same problem in Video every.

  • @UniqueunlimitedBD
    @UniqueunlimitedBD 2 місяці тому

    Every single video on your channel is amazing. But your video views are lower. Because your optimization is very poor. Your optimization needs to improve as soon as possible.

  • @ribbonwing
    @ribbonwing 2 місяці тому

    Audio is left ear only...

  • @joegiotta7580
    @joegiotta7580 2 місяці тому

    Whatever happened to the precipitron?

    • @luisreyes1963
      @luisreyes1963 Місяць тому

      They're now called Air Purifiers & are readily available (albeit pricey).

  • @karendavidson394
    @karendavidson394 2 місяці тому

    Excellent information, very well presented!

  • @solexxx8588
    @solexxx8588 3 місяці тому

    Cold climate hydronic heat pumps should be R290 because they can heat all the way down to -35C and they can produce 80C hot water.

  • @ShanaQuintano-d9n
    @ShanaQuintano-d9n 5 місяців тому

    Shana

  • @Speedo123100
    @Speedo123100 6 місяців тому

    If its edited for today, then I am not interested.

  • @RingtailTheRaccoon
    @RingtailTheRaccoon 6 місяців тому

    Crazy thing is if you pay attention to everything they kinda got it right In a lot of key ways even though we live in 2024 they got so much Right.

  • @Gazdatronik
    @Gazdatronik 6 місяців тому

    This may have been the progeny of wiring houses for 100 amps from the usual 60. The cheap little house I grew up in was a 60 amp 8 circuit house, but dad was good at balancing the load and we never had any problems. My grandmothers house by comparison was a bit of trial and error, a two story 60 amp house built in 1916. once she started using window units, by trial and error she figured out how to run it off of extension cords, balancing the load as she went along. The extra 2% of wire cost had not been spent. I just recently threw out the power strip that she used to power her refrigerator from a less stressed bedroom outlet. It had TORO branding like a lawnmower.

  • @TnseWlms
    @TnseWlms 6 місяців тому

    In the early twentieth century, electrical appliances had on the end of the power cord, a metal and ceramic ball that you screwed into a light bulb socket.

  • @TnseWlms
    @TnseWlms 6 місяців тому

    4:18 The outlet with the T-shaped slots.

    • @luisreyes1963
      @luisreyes1963 Місяць тому

      That was before electrical appliance manufacturers included ground prongs in their plugs.

  • @welding_guy7524
    @welding_guy7524 6 місяців тому

    Haha the way they worded things.. a garbage eliminator, or describing a breaker…the washing center, the drying center, the ironing center and a ghost stepped on the cat

  • @danielsee1
    @danielsee1 6 місяців тому

    Now show us how the homeless are going to live.

  • @danielsee1
    @danielsee1 6 місяців тому

    The refrigerator draws a lot more current when the compressor starts. Also, a lot more current is drawn when Grandma chews the cord.

  • @kr2513
    @kr2513 6 місяців тому

    So this is from 1945 and they’re showing a mid century house

  • @Madness832
    @Madness832 6 місяців тому

    Was that was a blueprint for all those Levittowns?

    • @OldsVistaCruiser
      @OldsVistaCruiser 6 місяців тому

      I lived in Levittown, Pennsylvania in the late 2010s, in a 1953 Levittowner. They did have a lot of modern appliances.

  • @tkacandes2052
    @tkacandes2052 6 місяців тому

    Would love to see an analysis with more recent data on refrigerants emissions and oil & gas emissions from US production including estimate of intentional releases.

  • @briansmith-l1q
    @briansmith-l1q 6 місяців тому

    yes, a mangle,,, so easy. had a speed queen as an ornament, with a poster under the hood with about 18 easy steps to iron a collared shirt, lol. the nick name 'mangle' was given for a reason

    • @davebaker9128
      @davebaker9128 6 місяців тому

      Mangle is not a nickname, it's the real name of the Wringer washing machine at the time

  • @jeromeglick
    @jeromeglick 6 місяців тому

    "Electrical living in the happier years that lie ahead" -- When was the last time you heard of a technology being sold to promote happiness?

  • @2007cgarza
    @2007cgarza 6 місяців тому

    The first world issues were better wiring. Today's issues are that our kid's have no realistic way of obtaining a home in the first place. FYI.

  • @curtislowe4577
    @curtislowe4577 6 місяців тому

    Everything was going smoothly until the narrator claimed the power company brings three wire service identified as three circuits. That looks suspiciously like three phase service. What power companies really supply to residential housing is single phase to get 240 VAC for high current devices which is split to provide 120 VAC for the normal circuits and wall plugs.

    • @OldsVistaCruiser
      @OldsVistaCruiser 6 місяців тому

      220 VAC 60 Hz service in North America is separated into two "legs" of 110 VAC and a neutral. The 2 legs are combined to obtain 220 to power larger appliances.

    • @curtislowe4577
      @curtislowe4577 6 місяців тому

      @@OldsVistaCruiser Yes and no. Look at how the xfmrs are wired. They are however many thousands of volts (probably in the 4k to 6k range) input stepped down to 240ish with a center tap that is the neutral. So yes each leg to the center tap neutral is 120 VAC and no bc the 240 VAC is the full output of the step down side of the xfmr. US low voltage single phase electricity is called split phase bc of the physical location of the neutral on the step down side. The two 120 legs are not "combined" to provide 240.

  • @SwingBandHeaven
    @SwingBandHeaven 6 місяців тому

    I am struggling to see why this needed to be edited "for today". I am sure it contained language and references of the period but surely we haven't become so feeble minded that we couldn't put it into the context of that period. Are you scared we would wither away with the shock at such references?

    • @seanarmstrong5684
      @seanarmstrong5684 4 місяці тому

      @SwingBandHeaven, I chose to edit out the inaccurate, boring monologue that predicated the technical information on home wiring. I paid for the video, I paid for the editing, and it's America where I can say what I please, and so can you. Since I'm the boss, and I'm not a white Christian nationalist fanboy, I stand by my 1st Amendment rights to cut the bull****. Go wither away elsewhere.

  • @michaelquinones-lx6ks
    @michaelquinones-lx6ks 6 місяців тому

    That cartoon was made in 1955

    • @sterlinsilver
      @sterlinsilver 6 місяців тому

      It looks way older than that, these designs look to be more from the mid 40s.

    • @michaelquinones-lx6ks
      @michaelquinones-lx6ks 6 місяців тому

      @@sterlinsilver Looks like mid forties animation, And, Thank you for answering my comment.

    • @TnseWlms
      @TnseWlms 6 місяців тому

      MCMXLV = 1945

  • @thaaang
    @thaaang 6 місяців тому

    Aaaaand. You only needed one domestic diva to run the house 😅

  • @johnp139
    @johnp139 6 місяців тому

    Why is the dining room so far away from the kitchen?

    • @More_Row
      @More_Row 6 місяців тому

      Because eating close or in the kitchen back in those days was considered low class .

    • @TnseWlms
      @TnseWlms 6 місяців тому

      In early houses, the kitchen was in the basement, so they used a dumb waiter to bring the food up to the dining room- dumb, because it doesn't speak, and waiter because it brought your food. Hence the expression "coming up!"

  • @johnp139
    @johnp139 6 місяців тому

    Electric water heaters are EXTREMELY EXPENSIVE to operate!

  • @johnp139
    @johnp139 6 місяців тому

    Only a 1 car garage?

  • @johnp139
    @johnp139 6 місяців тому

    Was 20 Amp service common back then?

    • @Sparky-ww5re
      @Sparky-ww5re 6 місяців тому

      Many homes built before WWII had 30 amp, 120 volt service. Two wires from the pole to the meter. Inside was a fuse box with two to four circuits for the entire house. Some fuse panels from the 1930s or earlier had fused neutrals, this is, two fuses per circuit, so a very old fuse panel with 4 screw in fuses might actually be 2 circuits. I actually lived in a duplex, built in 1942 we were told, from when I was in third grade to sixth, 1998 - 2001. Old fuse box, 4 sockets but only 3 were used, I stuck my finger in the unused socket and got thrown back and busted my head on the coffee table and needed stitches. Anyway I think there were 3 circuits in the house, 120 volts only because there was a gas range, small window air conditioner that plugged into the old two prong outlet in the living room, only one outlet in each bedroom, one outlet on the kitchen countertop, and two outlets for the living room. Bathroom didn't have any outlets so Mom had to run an extension cord from the bedroom to the bathroom when she needed to use her hairdryer or curling iron. Outside was two small circular electric meters, and two gas meters, one for the upper unit and other for downstairs unit, which we lived on. Cast iron radiators for heat, water heater/boiler in mechanical room only accessible by the landlord. No washer/,dryer hookups. All outlets were two prong, and a mixture of toggle switches with a loud snap when operated, and the style with two small buttons that pop in and out when you turn the lights on or off.

    • @thedopplereffect00
      @thedopplereffect00 6 місяців тому

      ​@@Sparky-ww5remakes our modern 240V 200amp services in new homes seem absolutely ridiculous. My panel doesn't even have spares with several 15amp mini breakers!

    • @Sparky-ww5re
      @Sparky-ww5re 6 місяців тому

      @@thedopplereffect00 @thedopplereffect00 I know, right? 😂 It's crazy to think that, 75 years ago, less than a century, a couple of circuits provided plenty of power for a house, until you realize that almost all of the pre-wwii houses were 1000 square feet or less and most famlies didn't have a TV until the early-mid 1950s and that was a rather substantial investment. For a typical family in the 1930s, a radio in the living room provided entertainment, a couple of fans and table/floor lamps, and having a percolator, toaster, flat iron, waffle iron, were all considered luxuries, so two to four circuits was plenty of power at the time

  • @johnp139
    @johnp139 6 місяців тому

    Why would you be ironing while making toast? Why would you iron at all?

  • @jamesgizasson
    @jamesgizasson 7 місяців тому

    I wish they still animated things like this. Nowadays, the population is 'too stupid' and the technology is either 'too advanced' or 'too dangerous' to meddle with. Take every opportunity to learn about the world around you. Pay attention to the man behind the curtain!

  • @timothygorman6054
    @timothygorman6054 7 місяців тому

    I appreciate you censoring this for common sensibilities instead of leaving it intact as a cultural artifact. You did us a great service.

    • @More_Row
      @More_Row 6 місяців тому

      I hope you’re sarcastic

    • @SecretCervix
      @SecretCervix 6 місяців тому

      Oh brave new world, that hath such people in it.

    • @thedopplereffect00
      @thedopplereffect00 6 місяців тому

      Found the communist book burner...

  • @operatorjeffdeathstar7759
    @operatorjeffdeathstar7759 7 місяців тому

    Dumbed down beyond belief...Lol

  • @hanschristianbrando5588
    @hanschristianbrando5588 7 місяців тому

    It truly was the dawn of the highest living standard in human history, when a household and family could be supported on a single salary, and higher education and world travel were within the grasp of the middle class. It will never be that good again; we're going back to the good old bad old days of aristocrats and peasants, nothing in between. The difference between 20th century appliances and today's digital marvels is you weren't expected to replace them every three years.

    • @johnp139
      @johnp139 6 місяців тому

      World travel has never been cheaper.

    • @dregenius
      @dregenius 6 місяців тому

      Corporatism, landlordism and other rent-seeking, profiteering behavior is higher than pretty much all of recent history. 😢

    • @katanatherobocrux
      @katanatherobocrux 6 місяців тому

      prices go up, but wages stayed flat since the 1970s

    • @davidlloyd1526
      @davidlloyd1526 6 місяців тому

      Nah - you had to be rich back then too... Not much has changed.

    • @michaelquinones-lx6ks
      @michaelquinones-lx6ks 6 місяців тому

      And, No 'MADE IN CHINA' shit either which falls apart within one week or one month whichever comes first.

  • @historicradiotelevision-bi2861
    @historicradiotelevision-bi2861 7 місяців тому

    Edited = censored for safe space weirdos and freaks. Go find the unedited version.

  • @SnepperStepTV
    @SnepperStepTV 7 місяців тому

    Where's the one some modern clown didn't mess with

  • @LonnyGrafman
    @LonnyGrafman 7 місяців тому

    Love it!

  • @bowl1820
    @bowl1820 7 місяців тому

    Edited for today= They cut out the first three minutes out it was the history of the years 1630-1775-1860 (pre electric). Also some (what they probably considered) problematic language was used in those years, (mentioning how women worked in the home.) The unedited version is also on youtube.

    • @RicardoRamosRetrocomputacao
      @RicardoRamosRetrocomputacao 6 місяців тому

      The current version avoids tantrums from progressives, Democrats and other left-wing variants.

    • @6toCampamento
      @6toCampamento 6 місяців тому

      @@RicardoRamosRetrocomputacao Esta situación de que nos obliguen a recortar las obras originales es horrible. ¿Dónde está la original?. Gracias Google Translate por poder decir en ingles lo que escribo en castellano. This situation of us being forced to cut the original works is horrible. Where is the original? Thank you Google Translate for being able to say in English what I write in Spanish

    • @kandigloss6438
      @kandigloss6438 6 місяців тому

      @@6toCampamento as said, the unedited version is easily available on youtube, just search for it. Editing out the section was the decision of this uploader, not the evil liberals that supposedly control the internet according to your guys.

    • @mackdaddyg321
      @mackdaddyg321 6 місяців тому

      Ricardo, honey, calm down. They can't hurt you no matter how weak and feeble minded you really are.

    • @thedopplereffect00
      @thedopplereffect00 6 місяців тому

      There is nothing wrong with women working in the home

  • @guitaoist
    @guitaoist 7 місяців тому

    What a fantasy illusion they sold us

    • @gaze505
      @gaze505 7 місяців тому

      We choose how to use scientific discoveries and envision their potential. Didn’t we buy what was sold? We also continue to buy the practical applications of ideas. I agree that we have a money driven social structure.

    • @guitaoist
      @guitaoist 7 місяців тому

      @@gaze505 sure but my concern is not about money, its about culture. I wanted a future like the Jetsons, but what i got was politics spreading hate and polarizing people and making us worry about every “ism” in the book

    • @theotherohlourdespadua1131
      @theotherohlourdespadua1131 6 місяців тому

      ​@@guitaoist Sounds like a return to the "glory" that is the 1950's where the Jetsons culturally base itself. Only thing lacking is civil unrest, National Guardsmen in every street corner, and somebody getting killed for their politics...

    • @jeffreywoods4040
      @jeffreywoods4040 6 місяців тому

      @@guitaoistthat’s what you get for acting like communism ended when the Wall fell.

  • @kellymurphy9844
    @kellymurphy9844 8 місяців тому

    Well done Sean and team!

  • @nishiki393
    @nishiki393 8 місяців тому

    This is super cool! You should provide relevant links either as a pinned comment or in the show notes.

  • @Ariccio123
    @Ariccio123 9 місяців тому

    14:30 I'm so glad to see these kinds of waste heat recovery systems reaching the market en masse. So so glad.

  • @Dallas-yf5po
    @Dallas-yf5po 10 місяців тому

    So if the site is not providing the 50 v2g vehicles, are you just hoping that nearly 40% of the LOW INCOME units will happen to own electric vehicles? And not just regular EV's but EV's that are v2g enabled. I would be surprised if luxury apartment complexes had 40% of their units as EV owners. If not, are you reserving 50 out of the 138 spaces for non residents (people who do own EVs) and hoping that the people who choose to charge at an apartment complex they don't live at have v2g enabled cars?

  • @sirajdeen260
    @sirajdeen260 11 місяців тому

    I am getting error which says u value of windows or interior floor value not less than 0.05. But even after I fix the error it's saying the repeatedly. Could you guide me how to solve it?