AU2019201956A1

AU2019201956A1 - Cumulative Power Generation

Info

Publication number: AU2019201956A1
Application number: AU2019201956A
Authority: AU
Inventors: Sant Sevak Singh
Original assignee: Singh Sant Sevak Mr
Current assignee: Singh Sant Sevak Mr
Priority date: 2016-09-23
Filing date: 2019-03-20
Publication date: 2019-04-11
Also published as: AU2017201714A1

Abstract

The Cumulative power site is built by combining an array of adjacently located Micro power sites. In a logical locality, domestic and commercial premises are installed with power generation and/or power retention system. Each domestic or commercial premises is categorised as micro power generation site. Existing service drop or service lateral connects Micro-Site to grid. Electricity is generated during the power generation period then power is modulated to make it fit for purpose, before it is consumed, retained or sold. The measure of total power generated at the Cumulative-Site is the sum total of all power generated by all Micro-Sites. All individual Micro-Sites and overall Cumulative-Site is monitored, maintained and operated by power management systems. Applicable National/State energy regulator issues an electricity generation licence for the total output capacity of logical facility. The generation facility is recognised within Network Market Operator (AEMO). Power is sold by standard spot bidding process in Network Market Operator (AEMO) as a standard practice.

Description

COMPLETE SPECIFICATION STANDARD PATENT

CUMULATIVE POWER GENERATION

The following statement is a full description of this invention, including the best method of performing it known to me:

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CUMULATIVE POWER GENERATION

The present application claims the benefit of Australian Provisional Application No. 2016903868, filed on 23 Sep, 2016, the full disclosure of which is incorporated herein.

BACKGROUND

Ever since the invention of renewable power generation, various means have been designed to harness and consume the renewable power. Traditionally the renewable power is being generated in either of two ways. First, small scale i.e. a Micro Site, where generator is the consumer and the power generated is in KWs. For example, domestic and commercial premises installed with rooftop solar. Secondly, large scale i.e. Macro Sites, where power is generated in large renewable farms and the sole purpose of power generation is commercial trading for profit. For example, AGL’s Broken Hill Solar Farm.

The innovation of cumulative power generation is explained by example and reference to traditional small-scale/micro & large-scale/macro power generation.

Small-Scale/Micro Site: Rooftop (Standalone and Grid Connected) PV Systems have been around for many years in varying capacity. Electricity companies and other providers have been in business to sell solar solutions to customers packaged as: 100% owned, lease plan, instalments plan, rate locked in plan, power buyback plan and industry/electricity company managed solar. Every micro-site is connected to utility grid by its service drop or service lateral connection. The sole purpose of micro power generation is to self-generate & self25 consume and in some cases excess is exported to the grid at minimal rate. No licence is required and Network Energy Market Operator (AEMO) doesn’t recognise these PV installations as electricity generators.

Example of Micro-Site: A house hold roof top solar. Standalone PV setup as shown in figure

2 and a Grid Connected PV Systems setup as shown in figure 3. The power generation capacity of Micro-Site is generally limited and is in kilowatts.

Large-Scale/Macro Site: So far large scale electric power is being generated by big corporation’s hydro, gas, thermal, nuclear, wind and solar farms and is shown in figure 1.

The power generation site is connected to the distribution grid by high voltage special purpose transmission line. The sole purpose of macro power generation irrespective of type is commercial benefits. The site is categorised a scheduled/non-scheduled generator and electricity is sold at Network Energy Market Operator. A licence to generate power is issued per site by relevant National or State electricity regulatory body. The power generation capacity of such macro sites is in megawatts

Example of Macro-Site: AGL Solar Farm at Broken Hill.

The AGL Broken Hill solar farm has 650,000 PV modules laid on a flat block of land spanning around 150ha producing approximately 53 megawatts of power. The power generated is delivered to the distribution grid by a 22 KV transmission line.

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DESCRIPTION

Cumulative power generation coins the method to combine micro sites that generate & retain power collectively in mega-watts. Multiple micro sites are grouped together within the hierarchy of cumulative site based on different business rules. The total power output of the cumulative power generation site is the aggregated guarantee output. The power is traded at network energy market operator (AEMO) for commercial benefits. The cumulative power plant gets recognised as scheduled/non-scheduled power generator capable to supply power on demand.

A cumulative power generation site is created by operation, management & harnessing the output of multiple micro sites. A micro site, is the autonomous building block of cumulative site and is defined as a premise installed with existing/old or newly installed renewable power generation &/or retention systems. All micro sites are connected to utility grid via existing service lateral/service drop connections. The consumption and export of power at micro site is measured separately. At every micro site the power is locally modulated and made fit for use. Simple example; when retaining power, the generated power in DC is stored in DC whereas DC is converted to AC before feeding into the grid. Every micro site is capable to be monitored & administered locally based on local policies or centrally based on overall policies. Precedence of local vs overall policies is established by business rules.

A licence is issued to every cumulative site for its maximum guarantee megawatt capacity by relevant authorities. Every cumulative site is designated as scheduled/non-scheduled generator at network energy Market (AEMO). A Cumulative-Site generates power in Mega25 watts and is shown in figure 4. A simulated local participation to cumulative power generation site is shown in figure 6.

Example 2: The cumulative power generation innovation is explained by reference & replication to AGL’s Broken Hill Solar farm. The output capacity of AGL Broken Hill

Power plant is 53 MW. This output capacity of AGL’s Broken Hill plant is replicated at hypothetical locality/suburb ‘Solar Town’ consisting of 6500 premises i.e. micro-sites. 6500 Micro-Sites in Solar Town combine to form one Cumulative-Site that generates 53MW of power.

In contrast to AGL’s Broken Hill facility Cumulative-Site is connected to utility grid by 6500 individual service drop or service lateral connections. The power generation site is directly connected to utility grid. The replication of AGL’s solar farm at hypothetical Solar Town is shown in Figure 5.

DESCRIPTION OF THE DRAWINGS

The invention may be better understood with reference to the illustrations of embodiments of the invention which:45 Figure 1 shows the traditional method of electric power generation. The power is generated by various modes at specific centralised macro sites. The sites are connected to distribution grid via special high voltage dedicated lines. The power is traded wholesale at network energy market operator. The distribution grid feeds into utility grid where electricity companies supply, meter and bill customer at retail.

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Figure 2 shows standalone photovoltaic system on customer premises. The power is generated and consumed in house only. The PV system is either programmed not to produce power when not being consumed instantaneously or simply discards the excess. Power flows one way only, from grid to the premises shown in red line.

Figure 3 shows grid connected photovoltaic system on customer premises. In this case excess power is exported to the grid as shown with green & red lines.

Figure 4 shows the cumulative power generation site at Solar Town. The micro sites are grouped together to n^th premises in the locality. The figure shows the power consumption in red, generation in green, retention in black and feed in orange.

Figure 5 shows the replication of AGL’s Broken Hill solar farm into cumulative power plant.

Figure 6 shows domestic/commercial premises participation to cumulative power generation site at locality.

Claims

The claims defining the invention are as follows:

1. A Cumulative Power generation site establishment by: the logical grouping of micro sites;

the use micro sites as a building block where a micro-site is a premise with existing or newly installed renewable power generation/retention means;

the mode of connection of every micro site to utility grid as service drop/service lateral connection;

the power aggregation of micro sites output (in KWs) to form total output for cumulative site (in MWs);

the measure of power generation and consumption at every micro site, aggregated to cumulative totals; and the install and operation of power modulation, management & control systems at micro site and cumulative site based on policy.
2. The cumulative power generation establishment as claimed in claim 1 by the use of physical & logical grouping of micro-sites or any variation of it.
3. The use of existing or any new form of service drop or service lateral grid connection to micro sites to create a cumulative power site as claimed in claim 1.
4. The licencing of cumulative power generation site as claimed in claim 1.
5. The ability to trigger power generation, retention or export events locally or remotely based on policy as claimed in claim 1.