Overview of Distributed Energy


If you’re not familiar with the world of Distributed Energy Systems (DES) also called Distributed Energy Resources (DER) then download the excellent report ‘Combined Heat and Power‘ published by International Energy Agency (IEA) headquartered in Paris, France.

Another good overview is government-supported report ‘Using Distributed Energy Resources‘ published by the U.S. Department of Energy.

Other references to study:

- Excellent and concise Siemens Report

- Science articles: https://www.sciencedirect.com/topics/engineering/distributed-energy-system

- Diverse info from Barkley Lab: https://building-microgrid.lbl.gov/projects

Overview of Microturbines


DISCLAIMER: The above microturbine is not part of our product; the inclusion of this video in this page only aims to illustrate the principle.

Microturbines are just one type of machine used in Distributed Energy Resources (DER) described above, but their characteristics and benefits allows complete microgrids to be built with microturbines as their basic building blocks.

The U.S. Dept. of Energy describes microturbines as “smaller, somewhat less efficient versions of combustion turbines, in the range of about 30 to 250 kW. They run on natural gas at high speeds (typically around 90,000 rpm). The electrical output of the generator is typically passed through an inverter (an electronics based power converter, also called a power conditioning unit or PCU) to provide 60 Hz AC power. Microturbines targeted to the small industrial and commercial market are designed to be compact, affordable, reliable, modular and simple to install. The newest versions meet very low emissions requirements. Microturbines are commercially available and currently cost around $1,000/kW.”

Here are some of the very best study references:

- National Institute of Building Sciences: http://www.wbdg.org/resources/microturbines

- Environmental Protection Agency (EPA): Microturbines (2015) PDF

- IntechOpen Limited, London, UK: Micro Gas Turbine Engine: A Review

- Science articles: https://www.sciencedirect.com/topics/chemistry/microturbine

Note on Application – Startup Timing

This type of electric generator is suitable for all applications that need either constant supply of power with very short downtime (as short as 3 hrs twice a year, see specs below) – or backup power that does NOT need to be immediate.

Due to the very high RPM of the microturbine section, startup and stabilization will normally take slightly longer than Diesel. For comparison: Diesel engine startup 3-5 seconds, but full power in 10-15 seconds; compare to microturbine that may take up to 120 seconds for full power.

Critical backup power applications such as hospitals and data centers require that this startup time be backed up by batter-powered UPS. Both Diesel and microturbines need this, you just need to be aware of the nearly 2 minute difference.

What’s New Here

WaterfuelPro has invented neither the microturbine nor the idea of boosting it with Brown’s gas. Our innovation comes at the system level, or more correctly several levels of innovation of both system, marketing and deployment to the newly created market.

The innovation in WADES is in the following factors:

- We have a Patent (pending, in progress) at the system level, that deals with how Brown’s gas is delivered, how clusters of Brown’s-gas-assisted microturbines are built and managed for higher electricity output. But since other companies can come up with their own Patents, this is not a major factor.

- The real problem is availability. To deploy 1000’s of microgrids and provide electricity to every island and every site on earth no matter how remote, high up or deep in the ocean, we need very large numbers of microturbines manufactured – and FAST. Sorry California, Sorry Elon Musk, but we strongly believe that Taiwanese aerospace industry is simply faster and more industrious when swift upscaling of production is concerned.

- We implement perfectly standard SISBG units, in other words we use Brown’s gas machines that can be later sold to a jeweler/doctor/whoever user – or vice versa, come from any previous user into a microturbine system. Nothing to develop here as they are pre-designed for clustering in larger systems.

- The missing ingredient is the microturbine – of Taiwanese origin, for example:

   - CT7

   - HTF7000

   - TFE1042

   - TFE731

   - T53-L-701A

   - T53-L-13B

- Our approach is to help Taiwanese industry develop its very own microturbine, while our duty is clever integration that would also market well.

- The rest of the process cannot be revealed on this page, and it will take probably 14 months to get a prototype going, but hopefully by now you got enough of the picture to understand where WADES is heading in terms of global deployment.

DISCLAIMER: The inclusion of the above video in this page neither confirms nor denies details of any cooperation with the Taiwanese Aerospace Industrial Development Corporation.; its here only to show design and manufacture capabilities that (we consider) surpass those of American turbine makers.

Pricing

$149k per 250 kW unit, with 70% certainty.

Larger systems, 10+ MW, are normally priced as multiples of $159k. Smart inter-connectivity built into each 250 kW unit keeps larger system pricing down, because it allows easier esign and quicker set up at system level. Systems larger than 25 MW will be priced on a case-by-case basis.

This pricing level is comparable to microturbines available today that ARE of very good quality but NOT AS ECONOMICAL to run and maintain due to lack of Brown’s gas – hence inevitably having incomplete combustion.

Effective pricing: lower TCO (Total Cost of Ownership) than all types of commercial microturbines.

We expect pricing to go down in direct proportion to the expected scaling up in production and global deployment (estimated time frame 55-60 mo.)

Production Capacity


No accurate estimation can be made at this time. However, knowing the speed in which Taiwanese industry moves especially when backed up by government, you can guesstimate that WADES production can be scaled up to meet any global demand once it’s out there.

Market Size and Market Share Estimations


The diagram below describes the various types of distributed energy systems. As a whole, the demand for distributed energy is rising in all parts of the world due to poor quality/cost ratio of the traditional grid. Many consumers require low cost, clean heat as well.

Growth expected in all world markets for microturbines in general: www.energymanagertoday.com/microturbines-opportunities-barriers-0113003/

Among many analysts, William Atkinson of Electrical Contractor magazine predicts explosive growth for distributed energy: www.ecmag.com/section/systems/explosive-growth-distributed-energy-resources-way

Projections by Navigant Research indicate a Global market size of $1.85 billion. Similar to electric vehicles taking over the vehicle market, we expect WADES tech to gradually take over most of the turbogenerator niche, or roughly USD 1.7 billion.

Our WADES products and service, despite patenting, will have to deal with competition (because anybody can add Brown’s gas to a turbine) but we have several advantages to guarantee a good market share:

First to market,

Unique, non-obvious technology,

Unbeatable pay-to-own financing scheme (bank agreement in progress) that allows customers to pay based on a simple formula of usage vs. savings.

Target Markets for WADES, 250 kW each


- No residential (arbitrary executive decision – nothing wrong with this niche market)

- We target industrial/commercial customer that require at least 185 kW: hospitals, universities, military, Bitcoin mines, generator rental firms, shopping malls, etc.

- Additionally, Power & Heat clients who already have excess biogas, such as Sheboygan Wastewater Treatment Plant of Wisconsin, USA: https://youtu.be/GjqUVEXqndo

- Power range: majorly between 185 kW (one WADES working at 75% load) and 10 Megawatt (forty WADES units clustered to a system with shared resources and shared outputs). But we’ll take bigger projects also.


SPEC SHEET
Block Diagram


Microturbine Section
(1) Product:

- Microturbine to produce ROTARY POWER (primary) and heat (secondary).

- No alternator/gearbox – just the turbine part as shown here.

(2) Major Specs:

- Single moving part (turbogenerator shaft) on air foil bearings – no lubricants
- Power: 380 hp* (950,000 BTU/h), variable speed
- Electric starter, ignition time ≤ 60 sec.
- Adaptable to fuels with 350-2,500 BTU: Diesel/Sasol, gasoline, jet, ethanol, natural gas, propane gas, landfill/digester/biogas, flare gas, methane
- Efficiency: ≥ 40%
- NOx Emissions: ≤ 7 ppm
- Air cooled – no coolants
- Operating Temperature: -20°C to +50°C

* Calculated to produce 250 kW of electricity after conversion losses.

(3) Durability and Service:

- MTBF: 9,000 hours or better
- Service life: 45,000 hours (5 years) or better.

(4) Subsystems:

- Heat Recovery Section (see below)
- Fuel Compressor for gas (as necessary depending on supply line).

(5) Scheduled Maintenance:

- At 8,000 hrs: clean/replace air filters, fuel filter, igniter,
- At 20,000 hrs: replace injectors, thermocouple, battery,
- Total downtime: ≤ 6 hrs/year, with each schedule ≤3 hrs if serviced at 4,000-hr intervals (twice/yr).

Electric Generator Section

- High-speed (23,000 RPM) alternator
- Rated voltage: 380 VAC, three phase, 50/60 Hz
- Nominal output: 250 kW (+0/-3 kW)
- Coupled directly to the turbogenerator shaft.

Brown’s Gas Assistance Section

- Same standard SISBG used in most projects, one unit per WADES unit.
- Produces Brown’s gas on demand, i.e., only when the turbogenerator shaft is turning at nominal RPM.

Micro Controller Section

- Automatically adjusts Brown’s gas flow rate to fuel type
- Selects ‘Grid Interface’ mode vs. ‘Stand Alone’ mode
- Controls safety features, load control and battery charge
- Starts and stops its SISBG unit as necessary
- Automatic anti-freezing algorithm
- Autonomous self-fix of certain problems, or calls for maintenance if cannot fix the problem
- To prevent even the most vicious cyber attacks, this section has zero connectivity to any and all intranet/internet/wi-fi networks.

Heat Recovery Section

- Specific performance unknown until final testing (Month 35-37)
- Expect lower (~20%) heat recovery since Brown’s gas causes lower exhaust heat due to higher percentage of any fuel BTU converted to mechanical energy.

Housing

- Houses all the above sections
- Easy technician access
- Dimensions (L*W*H): 450*200*290 cm
- Base: 4 shock absorbers attach with bolts to concrete pad (4,000 kg, 2,500 psi compression strength, level +/- 2°)
- Silencer: attach standard 12″ commercial silencer, residential or industrial as needed.

System-Level Specs

- Total weight: ~3,000 kg (6,600 lbs) w/o Heat Recovery, Silencer
- Emissions: exceeds CARB (California), ISO-14064 (International) and Stage-5 (EU) standards
- Acoustic emissions after housing absorption, rated at a distance of 10 meters (33 feet) per ASTM testing: ≤ 65 dBA.