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Thread: DC changeover switch

  1. #41
    Platinum Member Derlyn's Avatar
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    Quote Originally Posted by GCE View Post
    PE has been pretty open about where and how they want to go - Seems like NERSA is going to insist on Time of Use tariff for domestic in SA
    Panels and Batteries will play and important role in reducing the cost of electricity

    As you can see from the rates pasted below peak times you get hammered on the rate - You just need to move geyser etc out of peak and let the battery supply your evening usage .
    The net billing ( dredit amount ) is well below what you pay

    I think it is fair as the municipalities need to maintain the network and by using your excess generated they can effectively sell it on without having to buy from Eskom

    NMBM Rates for
    SMALL SCALE EMBEDDED GENERATION 2021/22

    Total
    VAT Incl.

    Extra Low Voltage (ELV) Time-of-Use Tariff - 230 Volts
    Basic Charge R/Month 352.84
    Winter
    Energy Charge Peak R/kWh 5.66
    Energy Charge Standard R/kWh 1.91
    Energy Charge Off Peak R/kWh 1.16
    Summer
    Energy Charge Peak R/kWh 2.03
    Energy Charge Standard R/kWh 1.48
    Energy Charge Off Peak R/kWh 1.04
    Net Billing– Extra Low Voltage Time-of-Use Tariff
    Winter
    Energy Charge Peak R/kWh 3.29
    Energy Charge Standard R/kWh 1.06
    Energy Charge Off Peak R/kWh 0.61
    Summer
    Energy Charge Peak R/kWh 1.13
    Energy Charge Standard R/kWh 0.80
    Energy Charge Off Peak R/kWh 0.54

    SSEG Support Charge R/month 88.22
    Gonna be interesting to see how they gonna get the above right.
    All the meters will have to be extremely smart and I cannot see that happening before 2026/7.

  2. #42
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    Quote Originally Posted by Derlyn View Post
    Gonna be interesting to see how they gonna get the above right.
    All the meters will have to be extremely smart and I cannot see that happening before 2026/7.
    They are being and have been installed in PE for the past couple years - I had installed in 2015 when I first installed PV at the office
    In PE you have a 4 quadrant meter installed and they give you access on the system to be able to check your readings daily
    All operates via GSM

  3. #43
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    Quote Originally Posted by GCE View Post
    They are being and have been installed in PE for the past couple years - I had installed in 2015 when I first installed PV at the office
    In PE you have a 4 quadrant meter installed and they give you access on the system to be able to check your readings daily
    All operates via GSM

    Electronic metering and time of tariff usage has been around for a long time, landis and gyr were the pioneers and sometime still used in commercial and industrial applications. trying to get support from them is like dealing with a fibre serve provider

    It use to be a money for jam service companies offer. They fit the meter get your reading sent to their office flip it and send it back to you at a fee, maybe throw in some power factor correction to make a few extra bucks. We were doing it back in 2004.
    Last edited by Isetech; 12-Jul-22 at 07:53 AM.

  4. #44
    Platinum Member Derlyn's Avatar
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    In our valley, we still live in the dark ages. Anyway, the dark ages are quickly returning for the whole country.

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