May 2026 Investor Presentation vFinal

May 2026

1

INVESTOR RELATIONS

Aaron Jagdfeld

PRESIDENT & CEO

York Ragen

CHIEF FINANCIAL OFFICER

Kris Rosemann

DIRECTOR CORPORATE FINANCE

& INVESTOR RELATIONS

(262) 506-6064

InvestorRelations@generac.com

2

Forward Looking Statements

Certain statements contained in this news release, as well as • changes and volatility with respect to the trade policies of various other information provided from time to time by Generac countries, which may result in new or increased tariffs, trade Holdings Inc. or its employees, may contain forward-looking restrictions, or other unfavorable trade actions;

statements that involve risks and uncertainties that could • our ability to protect our intellectual property rights or

• the possibility that the expected synergies, efficiencies and cost savings of our acquisitions, divestitures, restructurings, or realignments will not be realized, or will not be realized within the expected time period;

  cause actual results to differ materially from those in the forward-looking statements. Forward-looking statements

  successfully defend against third party infringement claims;

  • risks related to sourcing components in foreign countries;

  • compliance with environmental, health and safety laws and

    give Generac's current expectations and projections relating • changes in durable goods spending by consumers and

    regulations;

    to the Company's financial condition, results of operations, plans, objectives, future performance and business. You can

    businesses or other global macroeconomic conditions, impacting demand for our products;

• scrutiny regarding our sustainability practices;

• government regulation of our products;

  identify forward-looking statements by the fact that they do • changes in governmental policies, particularly with respect to tax

• failures or security breaches of our networks, information

  not relate strictly to historical or current facts. These statements may include words such as "anticipate," "estimate," "expect," "forecast," "project," "plan," "intend,"

  "believe," "confident," "may," "should," "can have," "likely,"

  incentives, tax credits, or grant programs, which could: (i) affect the demand for certain of our products; or (ii) result in a withdrawal or reduction of grants previously awarded to the Company;

  technology systems, or connected products;

• our ability to make payments on our indebtedness;

• risks due to instability caused by geopolitical conflicts;

• terms of our credit facilities that may restrict our operations;

  "future," "optimistic" and other words and terms of similar

  • increase in product and other liability claims, warranty costs,

• our potential need for additional capital to finance our growth or

meaning in connection with any discussion of the timing or nature of future operating or financial performance or other events.

Any such forward-looking statements are not guarantees of

recalls, or other claims;

• significant legal proceedings, claims, fines, penalties, tax assessments, lawsuits or government investigations;

  refinancing our existing credit facilities;

  • risks of impairment of the value of our goodwill and other indefinite-lived assets;

  • volatility of our stock price; and

    performance or results, and involve risks, uncertainties (some • our ability to consummate our share repurchase programs;

    of which are beyond the Company's control) and • our failure or inability to adapt to, or comply with, current or future

  • potential tax liabilities.

    Should one or more of these risks or uncertainties materialize,

    assumptions. Although Generac believes any forward-looking

    changes in applicable laws, regulations, and product standards;

    Generac's actual results may vary in material respects from

    statements are based on reasonable assumptions, you should

    • our ability to develop and enhance products and gain customer

those projected in any forward-looking statements. A

be aware that many factors could affect Generac's actual financial results and cause them to differ materially from those anticipated in any forward-looking statements, including:

• fluctuations in cost, availability, and quality of raw materials, key components and labor required to manufacture our products;

• our dependence on a small number of contract manufacturers and component suppliers, including single-sourcesuppliers;

• changes and volatility with respect to the trade policies of various countries, which may result in new or increased tariffs, trade restrictions, or other unfavorable trade actions;

  acceptance for our products including as part of the growing data center market and energy technology product offerings;

• our ability to accurately forecast demand for our products and effectively manage inventory levels relative to such forecast;

• our ability to remain competitive;

• our dependence on our dealer and distribution network;

• market reaction to changes in selling prices or mix of products;

• loss of our key management and employees;

• disruptions from labor disputes or organized labor activities;

• our ability to attract and retain employees;

• disruptions in our manufacturing operations;

detailed discussion of these and other factors that may affect future results is contained in Generac's filings with the U.S. Securities and Exchange Commission ("SEC"), particularly in the Risk Factors section of the Annual Report on Form 10-K and in its periodic reports on Form 10-Q. Stockholders, potential investors and other readers should consider these factors carefully in evaluating the forward-looking statements.

Any forward-looking statement made by Generac in this press release speaks only as of the date on which it is made. Generac undertakes no obligation to update any forward-looking statement, whether as a result of new information,

future developments or otherwise, except as may be required 3

by law.

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Generac Overview

LTM Net Sales

$4.3 Billion

LTM SALES MIX BY SEGMENT

Scale

~9,400 global employees and 19 manufacturing facilities

LTM Adjusted EBITDA

$759 Million

Innovation

~1,200 engineers worldwide focused

on product development and quality

Distribution

Omni-channel distribution with thousands of dealers, wholesalers, retailers, and e-commerce partners

LTM Cash Flow From Ops

$499 Million

Residential: 57% ($2.5B)

C&I: 43% ($1.8B)

Financial data as of 3/31/2026 & Employee data as of 12/31/2025; Amounts for totals, subtotals, and variances may not recalculate exactly within this presentation due to rounding 5

Industry leader in backup power solutions with track record of growth

Omni-channel distribution network Global manufacturing and distribution footprint

Product breadth across energy management solutions

CCI Segment

Capturing A Generational Growth Opportunity

• Large MW solutions multiply served market via data centers

• Core strengths drive share gains in growing global end markets

  Residential Segment

  Mega-Trends Support Long-Term Growth

• Significant penetration opportunity in home standby category

• Differentiated home energy ecosystem to combat higher prices

Mega-Trends Support Generational Growth Opportunity

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Decades Long Track Record of Growth

~14% CAGR 2000-2026F

$5,000

$4,500

$4,000

$3,500

$3,000

$2,500

$2,000

$1,500

$1,000

$500

$-

'00 '02 '04 '06 '08 '10 '12 '14 '16 '18 '20 '22 '24 '26F

Note: $ amounts in millions. Represents net sales. Figures include results from acquisitions completed during 2011-present. CAGR measures revenue growth through

2026F off 2000. 2026F figure assumes midpoint of guidance updated on April 29th, 2026. 7

Product Overview

Residential - $2.5B Net Sales*

*LTM figures as of 3/31/2026

Commercial &Industrial - $1.8B Net Sales*

Home Standby Generators

Portable Generators

Large MW Diesel Generators

Natural Gas & Diesel Fueled Stationary Generators 10kW - 2MW

2.25MW - 3.25MW

Microinverter

ecobee Energy Hub Solutions

Residential Energy Storage

Controls

& Connectivity

EV Charger

Residential Load Manager

Chore Products

Mobile Generators & Light Towers 3kW - 2.3MW

C&I Bess, Mobile BESS, & Grid Services

20kWh - 5MWh

Aftermarket Parts & Accessories, Extended Warranty, ecobee+, Other Services

Aftermarket Parts & Accessories, Extended Warranty, Microgrid Controls, Services 8

Generac

Global Footprint

GEMERA

Global Headquarters

Wau kesha, Wisconsin

Key Locations

Office, Warehouse, Sales,

Research & Development and Other

Manufacturing Operations

Conducted across 19 facilities globally, including 5 locations in Wisconsin, USA

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Unmatched Omni-Channel Distribution

Residential Network C&I Network

Residential Dealers

Generator experts providing direct sales, install & service capabilities

Wholesale Distributors

Deep relationships with electrical, HVAC & solar contractors

Retail Outlets

Create product awareness & availability

More than 10,000 Channel Partners* in the Evolving Generac Home Network

Industrial Distributors

Engage specifying engineering firms, aftermarket service

Data Center, Telecom & Rental

Direct sales to large customers in growing markets

Other Direct C&I

Access to strategic verticals with custom solutions

International Branches

10

17 branches. Local Expertise, Global Scale.

*Residential Dealers, Aligned Contractors, and Solar Installers

Mega-Trends Review : Lower Power Quality

Nearly half of U.S. population in region considered High Risk

North America Electric Reliability Corporation Long-Term Risk Assessment

*See appendix for historical quarterly power outage data

RISK DRIVERS:

• Escalating demand growth

• Increased intermittent generation

• Retirement of traditional thermal generation

• Infrastructure development uncertainty

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Mega-Trends Review: Higher Power Prices

(Increase in Cumulative TWh)

Accelerating Demand Growth Causes Upward Pressure on Prices

• Dispatchable power supply lagging accelerating demand through 2030

  Incremental 166GW demand vs 81GW dispatchable supply3

• 2030 peak demand forecasts accelerating

  +2.5x vs prior year forecast

• Data center demand driving future load growth

Electricity demand expected CAGR of 5.7% through 20302

U.S. Electricity Demand Changes

U.S. Residential Electricity Price

$0.20

$0.19

$0.18

$0.17

$ / kWh

$0.16

$0.15

$0.14

$0.13

$0.12

¹EIA - Electric Power Annual - U.S. Energy Information Administration (EIA), ²GridStrategies Load Growth Report, 3Grid Strategies; McCoy Power Reports, 4 Deloitte 12

Mega-Trends Review: Global Infrastructure C AI

Required Investment in Global Infrastructure

~$100 Trillion global infrastructure investment required through 2040 -

secular growth driver for C&I products

AI Driving Rapid Capital Deployment

Data center load growth driving generational C&I growth opportunity & grid supply/demand imbalance

$800

$700

$600

$500

$400

$300

2021 2022 2023 2024 2025 2026F

Hyperscaler CapExf

$ Billions

¹ Amazon, Alphabet, Meta, Microsoft, Oracle historical capital expenditures h most recent FY26 Guidance

$200

$100

$-

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Improveenergy resilienceand independence.

Increase power reliability through onsite generation and storage solutions that provide resiliency for homes, businesses and communities.

Optimizeenergy efficiencyand consumption.

Enableefficient power generation and consumption through monitoring, management and energy optimizing solutions.

Offering innovative solutions that enable and protect next-generation energy production, data centers, and other critical infrastructure.

Innovate to Protectand buildcritical infrastructure.

Powering a smarterworld.

Our Purpose: Lead the evolution to more resilient, efficient, and innovative energy solutions.

Capturing A Generational Growth Opportunity

Serving Diverse End Markets Expanding Competencies C Markets

Global Distribution Capabilities

• Complete distributor coverage in North America

• 17 sales branches Internationally

• Broad energy solutions offering

• Direct sales capabilities with large national h global accounts

• Global aftersales service h support network

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The Generac Advantage

How We Compete Above 2MW

Innovation

• Demonstrated history in engineered solutions

• Controls systems leadership

• Integrated multi-asset solutions

  
  
  

  Execution at Scale

• ~50-year track record of execution in ChI markets

• Global manufacturing h customization capabilities

• Competitive lead times across product offerings

  Operational Excellence

  • Vertical integration in fabrication, packaging

  • Global service networks h direct sales force

  • Agility to serve dynamic customer h market needs

    Strategic Partnerships

  • Global infrastructure companies h other EPCs

  • World-class engine partners with scale

  • Decades-long global supply chain relationships

Proactive Maintenance

Scheduled programs designed to maximize uptime and eliminate unplanned outages before they occur.

Emergency Response

Global Service Capabilities

~900 Domestic Field Techs

~400 Domestic Data Center Field Techs

~800 International Service Partners

24/7 Remote Monitoring & Diagnostics

Rapid-response protocols with dedicated data center technicians ensuring the fastest possible resolution when it matters most.

End-to-End Platform

Salesforce-powered Service Desk Case Management and digital platforms that provide full visibility, traceability, and scalable support.

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Global Data Center Market

Capitalizing on a Generational Growth Opportunity

Generating Early Success

International Colocator Customer Site

12 Units

Domestic Colocator Customer Site

37 Units

• Non-binding 'notice to proceed' with a Hyperscale customer up to $600M

• Preferred supplier of two global data center colocators

• Data center product backlog: $700M+1

  Incremental Opportunity in Expanding Market

• Global market supply shortfall for large diesel generators

• Data center power requirements growing rapidly

  Capacity Expansion & Vertical Integration

• >$1B Domestic manufacturing capacity for large MW gens by Q4 2026

• Organic capacity expansion in Wisconsin, Italy, India, China, Mexico

• New facility in Wisconsin more than doubles domestic capacity

• Enercon acquisition brings packaging capabilities in house

• Internal packaging capacity increases control over delivery timelines

  1. As of February 11, 2026

  2. Cushman h Wakefield - 2025; company estimates

• Vertical integration increases ChI margin profile

Growing Backlog Provides Visibility to Increasing Market Share

¹ As of 4/29/2026, does not include any potential hyperscale volume

Multi-Asset Energy Integration Solutions for Every Backup Power Need

ASSETS: Gen only Multi-asset energy systems USE CASE: Resilience only Multiple value prop GRID INTERACTION: Isolated Grid parallel

LEAST COMPLEX MOST COMPLEX

Beyond standby gens with controls

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Mega-Trends Support Long-Term Growth

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