Making Rooftop Wind Energy Viable Introduction and One Sentence Product Description Making Rooftop Wind Energy Viable Erika Boeing eboeing@acceleratewind.com 1-314-326-8180

The Renewables Industry is Thriving! ….. but not rooftop wind….. 9.6 GW Installed in US in 2018 5 GW installed in US in 2018 Small Wind? 8 GW Installed in US in 2018 4.3 MW Installed in US

Small Scale Wind Is Prohibitively Expensive Cost Today: $5.48/Watt – payback is often longer than lifetime Soft Costs: Reduced through Market Innovations Hardware Costs: Reduced through Technical Innovations

Reduce Soft Costs through Sale to Solar Installers Sell to Solar Installers Installers are desperate for ways to diversify Use their costs for customer acquisition, permitting, and installation Edge of the roof perfect for wind, unused for solar Target Commercial and Industrial Roofs 70% cannot produce energy with solar alone High peak demand charges Empty space available on rooftop edge Ideal wind flow conditions

Wind Speed Increase at the Edge of a Roof CFD Model of Wind Flow Validated with: In-depth sensor study at Argonne National Lab Computational Fluid Dynamics Modeling Work with existing edge of roof technology Up to 3x power increase at edge of roof

How we Capture Faster Speed Wind *Conceptual design – subject to change with CFD Modeling and Architectural Work Additional Cost-Saving Benefits: Mounting with standard solar racking by solar installers Ability to add solar on top of channel and produce both wind and solar

Power Electronics Solution – Intermediate Energy Storage Our Patent-Pending Invention: Typical: Power Electronics are often as much as 50% of total wind turbine costs Using the edge of the roof does nothing to reduce this cost! We need another invention Generator Flywheel Energy Storage Generator Inverter Inverter We temporarily store the wind turbine energy in a low cost flywheel, smoothing out peaks and valleys of generation, and reducing the size and cost of the generator and inverter

Validated Powertrain Solution Photo Credit: Argonne National Laboratory Photo Credit: Argonne National Laboratory System feeds in wind speeds from edge of roof Powertrain Solution (our key differentiator) validated through prototype built at Argonne National Lab

We Make Wind Energy Economically Viable Edge of Roof Performance Advantages Solar-like Infrastructure Costs

Serviceable Addressable Market We offer the opportunity to add an average of 30% additional energy to an average building rooftop In the US Market this is an opportunity of: 901 Million in 2018 1.51 Billion in 2023 We add onto a market with a 18% CAGR today Focus on New Solar Installs rather than retrofits or new wind buildings *Taken from Solar Energy Industry Association Predictions

Current Progress Technical and Market Validation Company 2017: developed core IP and business strategy 2017, participated in accelerators and grant programs June 2018: joined Chain Reaction Innovations Program 2 year fellowship ~$420k over 2 years to develop with Argonne National Lab scientists in Chicago Dec 2019: NSF STTR ($225k) Evolving prototypes to pilot stage Edge of roof capture CFD and validation with similar technology Prototype of drive train architecture Extensive need validation with solar installers

Team: Partners: ANL and IIT Advisors: Erika Boeing Scott Mueller B.S. Mechanical Engineering Fulbright Fellow Previous Systems Engineer at DRS Technologies 4 Patents in Innovative Energy Technologies Scott Mueller Previous VP of Systems Integration at Swarm Robotix Mechatronics and Robotics Expert Partners: ANL and IIT Advisors: Dr. Aaron Greco (ANL) – Wind Turbine Reliability and Drive Train Friction and Wear Dr. Rao Kotamarthi (ANL) – Wind Resource Prediction and Modeling Dr. Mahesh Krishnamurthy (IIT) – Generator Design Tom Zambrano – Previous engineering lead for Aerovironment’s edge of roof turbine Dr. John Carlisle – Founder, ADT