Residential Postpaid&Solar&Energy Storage IoT Management&Billing Solution

Scenario Preset

(1) This solution request a IoT based cloud monitoring for 8000 residential houses power system with solar PV and energy storage system [BMS&PCS] so that we could realize online&remote monitoring&billing&control for all 8000 houses centralizedly via IoT system.

(2) For each house, there are 3 monitoring points: 

① Grids side monitoring [also need prepaid billing and control]

Rated Current: Max 32A AC; Rated Voltage: 220Vac L-N, Type: 1-phase Circuit

② Solar PV inverter energy Generation Monitoringÿ

Rated Current: Max 32A AC; Rated Voltage: 220Vac L-N, Type: 1-phase Circuit

③ BMS system charger&discharge energy monitoring

Rated Current: Max 125A AC; Rated Voltage: 48Vdc, Type: DC Circuit

(3) For the places that we gonna install IoT gateway, it's covered by stable 4G signal. 

Devices Deployment Plan [Take 1 House for example]

GIS Analyzing

(1) Customer side could manage all the project room/buildings position all over the country.

(2) Customer side could manage all devices that connected to Acrel Cloud Prepaid&Postpaid System to know where these devices are located & which room/buidling was monitored by this devices.

(3) Customer side could receive all kinds of alarm including devices off-line alarm for example for checking the working status of the devices in countrywide project.

(1)GIS Analysing and Command Interface

(2)Write in Project/Building Logistic Location Information

Role setting and Sub account creation

(1) Operator could set the system permission level of each role [administrator, end power user for example]

(2) Sub Account Creation: Administrator could create sub account for their end power user and allow them to only check the energy and billing data of their own house. Also, could ban the permission of end power user for changing everything.

(1)Role and Permission setting

(2 ) Sub account creation and management

Solar PV Monitoring part

(1) Solar PV project overview: For checking the overall power generation, benefit anc etc of Solar PV deployed all over the country. [Solar Power Generation data will be collected by Solar Invertere and further issued to ANET-1E2S-4G gateway for a further 4G upstreaming]

(2) Solar PV monitoring: For checking the solar power generation, house loads overall power consumption sourced from both Solar PV/BMS and Grids, house loads partial power consumption sourced from Grids.

(1)Solar PV Project Overview

(2)Solar Site Monitoring Overview

(3) Solar PV inverter overview: For checking the overall solar PV devices list, model, daily power generation, real-time power generation and etc. 

(4) Solar PV inverter detail monitoring: For checking the solar inverter power generation [daily, monthly, yearly, life circle], annual utilization hours, basic electricity parameter [voltage, current, power, frequency and etc], power generation trend and curves, etc.

(3)Solar PV Inverter List

(4)Solar Site Monitoring Overview

(5) Solar PV inverter Power Generation Report: For checking the daily, monthly, yearly power generation report of certain/all inverters.

(6) Solar PV inverter Power Generation Report Export: The power generation report of solar PV inverter could be exported into Excel format file for further analyzing and storage.

(5)Solar PV Inverter Power Generation Report

(7)Solar PV Inverter Power Generation Analysis Report

(8)Solar PV Inverter Power Generation Analysis Report Export [Excel format]

DC Energy Storage Monitoring

(1) ANET-1E2S will collect the BMS&PCS data from inverter and further upstream to Acrel IoT Energy Management System for a centralized or separate data analyzing and display.

(2) Necessary data will be discharge&charging energy of BMS and the SOC, SOH status of battery packs.

(3) A autogenerated discharging&charging energy report was avaible and could be export in Excel format for further overview.

(1)BMS&PCS discharge&charging overview

(2)BMS battery pack monitoring [SOH, SOC, etc.]

Electricity Prepaid&Postpaid Part - Vendor&Topping up Logic

(0) Operator Side set administrator office for certain region to do the Online Electricity Vending by using WEB based system platfomr.

(1) Administrator create "User Account" for a unique End Power User of certain building/room.

(2) Administrator bond "User Account" to a certain building/room and then bind to a certain postpaid energy meter.

(3) End Power User of certain building/room contact administrator office, do the payment according to their monthly electricity bills. [monthly electricity bills will be issued to end power user via SMS, Email, mobile Application and etc.]

(4) Administrator operate Acrel Cloud Prepaid&Postpaid System to recharging the certain "User Account" after receiving the payment from End Power User which already bound to certain "User Account".

Electricity Prepaid&Postpaid Part - Remote Control Logic

For remote switch on/off control of circuit's CB (circuit breaker), basic control logic was as below [pic 6.1]:

(1) Postpaid Control Logic: Administrator use Acrel Cloud Prepaid&Postpaid System, enter the "room mangement" interface, and issue "force closing/switch on" or "force opening/switch off" command to control the on or off status of circuit's Circuit. [in prepaid control logic, the balance credit >0, or <0 will automatically trigger switch on or switch off command respectively]

(2) ANET-1E2S-4G gateway receive the control command via 4G communication. And further issue this control command to downstream ADL100-EYNK energy meter.

(3) ADL100-EYNK/F energy meter has built-in magnetic holding relay. Once the energy meter receive the "switch on" or "switch off" control command, this will trigger its magnetic holding relay to switch on or switch off the circuit's CB respectively.

(1)Illustration of Remote Control Logic

(2)Administrator use Acrel Cloud Prepaid&Postpaid System to issue "Control Command"

Auto-generated & Auto-issueing Customizable User Report and Electricity Bill

(1) Acrel Cloud Prepaid&Postpaid System could automactically generate a monthly electricity bills and energy report while issueing down to end power user via E-mail, SMS, APP, etc.

(2) Monthly electricity bills will be based on flat rates or step rates accordingly.

(3) End power user could also check their energy consumption or electricity bills on their Prepaid&Postpaid APP.

(4) Customizable User Report was possible according to the customer request.

Noted: Utility side could customize the format of monthly electricity bill&energy report.

(1)System issue Monthly Electricity Bills to End Power User

(2) Customized Monthly Electricity Bills