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vgr's profile
Venkatesh Rao
Venkatesh Rao
Venkatesh Rao
@vgr

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Venkatesh Rao

@vgr

Conversational account. For work follow @ribbonfarm, @breaking_smart, @artofgig. Tweets are 90% vacuous views, apathetically held. Mediocritopian. IKEA builder.

Los Angeles, CA
venkateshrao.com
Joined August 2007

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    1. Venkatesh Rao‏ @vgr 31 Dec 2017
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      I literally have no idea how much energy my apartment uses. This is like not knowing whether your car gets 10mpg or 50mpg. Feels like a big gap in infrastructure situation awareness.

      11 replies 5 retweets 43 likes
    2. Abe Stanway‏ @abestanway 31 Dec 2017
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      Replying to @vgr

      Why’s that? Take your bill and divide by 30 for daily average - you can see both volumetric and peak consumption

      2 replies 0 retweets 1 like
    3. Venkatesh Rao‏ @vgr 31 Dec 2017
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      Replying to @abestanway

      Unlike a car which is 2 big loads (motive power and air conditioning), and one small (electrical), home is about a dozen larger loads and several dozen smaller ones

      1 reply 0 retweets 0 likes
    4. Abe Stanway‏ @abestanway 31 Dec 2017
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      Replying to @vgr

      You asked about whole building load, not disaggregation :) Disaggregation is harder - can be (maybe) done with Sense, Bidgely, or DIY with CTs (current transformers) on the breakers

      1 reply 0 retweets 0 likes
    5. Venkatesh Rao‏ @vgr 31 Dec 2017
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      Replying to @abestanway

      I actually meant while building load and it’s *sensitivity* to various operating conditions like “doing laundry while watching tv in winter with heat on while chili is stewing on stove”. The daily/weekly/seasonal variability in home use is much higher than auto.

      1 reply 0 retweets 0 likes
    6. Abe Stanway‏ @abestanway 31 Dec 2017
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      Replying to @vgr

      Err - not following. What’s sensitivity? Load is load - the instantaneous whole building kW load is the sum of all individual appliance loads. And - the kW/h, which is the basis of energy trade, is the average kW load over an hour.

      1 reply 0 retweets 0 likes
      Venkatesh Rao‏ @vgr 31 Dec 2017
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      Replying to @abestanway

      As in d/dt of load-changing actions. Doesn’t matter for supply. It’s a demand side management variable, with or without variable pricing of supply. Basically advanced versions of “run your dishwasher at night.”

      12:57 PM - 31 Dec 2017
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      • Abe Stanway
      2 replies 0 retweets 1 like
        1. Abe Stanway‏ @abestanway 31 Dec 2017
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          Replying to @vgr

          Without AMI - utilities can’t really offer daily demand markets and demand pricing at the residential level like we’d like them to. It will certainly happen eventually though.

          0 replies 0 retweets 1 like
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        1. Abe Stanway‏ @abestanway 31 Dec 2017
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          Replying to @vgr

          However: demand response is a huge market for bigger customers (see: EnerNOC, Enbala)

          0 replies 0 retweets 1 like
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