The Digital Energy Company June 2013 Connecting the world of energy Safe Harbor Statement Certain of the matters discussed in this presentation contains statements that are forward-looking, such as statements relating to results of operations, financial condition, business development activities and market dynamics. Such forward-looking information involves important risks and uncertainties that could significantly affect anticipated results in the future and, accordingly, such results may differ materially from those expressed in any forward-looking statements made on or behalf of Acorn Energy. All statements other than statements of historical fact in this presentation regarding Acorn Energy’s future performance, revenues, margins, market share and any future events or prospects are forward-looking statements. For more information regarding risks and uncertainties that could affect Acorn Energy’s results of operations or financial condition review Acorn Energy’s filings with the Securities and Exchange Commission (in particular, it’s most recently filed Form 10-K and Form 10-Q). Acorn Energy’s forward-looking statements are not guarantees of future performance and the actual results or developments may differ materially from the expectations expressed in the forward-looking statements. As for the forward-looking statements that relate to future financial results and other projections, actual results will be different due to the inherent uncertainties of estimates, forecasts and projections and may be better or worse than projected and such differences could be material. Acorn Energy undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Confidential 2 The Digital Energy Company Why should you own Acorn Energy? ● Leveraging digital technology vastly improves, protects energy infrastructure ● Controlling position in four energy tech portfolio companies with TAM 0f >$4 Billion ● History of getting macro bets right and generating attractive exits with modest capital ● Strong cash position of $20m in cash as of March 31, 2013 and debt-free Confidential 3 Acorn History and Proven Track Record September 2005 2007 August 2011 • $10MM Market Cap • April COMV IPO @ $250MM Valuation • Sell CoaLogix $100 M • December Secondary @ $600MM Valuation • Buy CoaLogix $10 M $16 million net of dividends raised to create $140 million of value Confidential 4 Acorn Energy Portfolio • Huge revenue growth expected • 4 strong businesses • ACFN majority owner • Great customer traction • We supply growth capital • Strong management teams Confidential 5 Sensing technologies to detect and alert security teams to the presence of U-W threats to critical energy infrastructure Market Drivers Highlights Financial Snapshot • Global insecurity • Seven reference clients • $13.6M Rev 2012 • Non-dilutive funding • $9.6M in backlog • Secure infrastructure • 37% Gross Margin • New tech needed • 84% Ownership Stake TAM $3.5 B+ • 3,500 energy facilities on/near water Confidential 6 Remote monitoring solutions for back-power as well as pipelines During Hurricane Sandy 25% of all Cell Towers were without power • • • • Over 1500 American Tower sites monitored by Omnimetrix, all operated with 100% uptime Unmonitored generators fail 10% of the time called on FCC is holding hearings to improve power assurance for cell towers 220,000 cell towers in USA * Pre- management option pool Confidential 7 Remote monitoring solutions for back-power as well as pipelines Market Drivers Highlights Financial Snapshot • Cell tower power assurance • Lowering costs • $661k Rev 2012 • Dependence on wireless • Recruited sales force • Increasing features • Aging grid • $533k Rev Q1 2013 • 96% gross margin on renewals • 100% ownership* TAM $1B+ • • • • Over 2M permanently-installed back-up generators (50:50 residential/C&I) < 2% generators monitored < 2% households have generator 75% growth in connections and >5,000 monitors * Pre- management option pool Confidential 8 Cost-effective sensors for transformers and power lines (easy retrofit) to help utilities improve electric grid Market Drivers Highlights Financial Snapshot • Demand for reliable power/ 4 challenges • Pilots with 46 utilities • $3.7M Rev in 2012 • Aging grid • Web-based platform • Alain Steven on board • $1.5M Rev in Q1 2013 • Power theft • 43% Gross Margin • Cyber security • 100% ownership* • Renewables TAM $1B+ • • • 30M U.S. transformers (sensor locations) Less than 2% transformers have sensors >400 utility customers worldwide * 17% phantom option plan Confidential 9 The 3D Seismic Imaging Revolution for Conventional Oil Predicts the Benefit of a 4D Seismic Revolution Confidential 10 History and Future of Seismic Evolution from 2D to 4D Seismic Confidential 11 Unconventional Oil Frac Jobs Are Not Meeting Producers Expectations - 50% of frac stages produce zero hydrocarbons - 20% of frac stages responsible for 80% of production “ Confidential 12 Oil Producers Need to Improve Productivity and NPV of Wells Confidential 13 Solution: Revolutionary 4D Microseismic Monitoring Confidential 14 Optical Fibers: The Neurons For Future Intelligent Wells Replace This… With This Electronic-based Sensors Optical Fiber Sensor “..the industry is on the verge of a step change in well and reservoir monitoring capability” -Jorge Lopez et al, Shell Oil Confidential 15 Forbes: Big Data And Microseismic Imaging Will Accelerate The Smart Drilling Oil And Gas Revolution* This (USSI) imaging technology does for seismic the equivalent of going from 20th century x-rays to 21st century MRI. Microseismic brings radically enhanced navigation and, critically, the opportunity for a new era of dynamically controlled subsurface operations …getting the stages to be productive can only come from far more precision and far higher resolution of the underground domain… Operators need to move from today’s static and episodic geophysics maps to dynamic models of how rocks and fluids change. You need to see the micro-fractures from the real-time results of the fracking itself. Hearing the millimeter-scale cracks forming complex arrays in shale a mile away, then separating out the signals from confounding environmental noise is like hearing a whisper from the other side of a noisy auditorium. All of these “micro” events are not detectable with standard seismic. …today’s best-in-class geophones cannot fully unlock the potential of microseismic. The sensors need to see (hear) signals at 100 times the bandwidth, and be at least 100 times more sensitive (quieter). And, in an ideal world - which eventually becomes the standard operating procedure - imaging has to move from snap-shots to continuous real-time monitoring…This will require a new class of sensors both cheap and robust enough to survive for long periods, even permanently in the hot underground. Conventional electronics cannot deliver that combination. Making practical fiber optic geophones has been devilishly difficult. The issue isn’t in the physics ... The challenge has been to come up with a design that is simple, easy to manufacture, yielding a highly reliable and reproducible product. …the revolution really takes hold as the full power of U.S. Seismic’s richer data streams enable the emergence of better algorithms and…models that accommodate the complex mix of both plastic and brittle behavior of rocks in the subsurface…where correlations become possible now across the entire suite of hydrocarbon information - surface survey maps, drill-bit sensors, flow rates, pressures, temperatures, chemical analyses, etc. There is no chicken-egg uncertainty in which comes first; better and richer data flows will drive the emergence of new big data analytics. Microseismic capabilities are not only economically exciting, they promise collateral opportunity for greater safety and environmental monitoring * Mark Mills for Forbes. May 2013 Confidential 16 How Our Technology Works Laser Optical Interrogator Downhole Fiber Optic Geophone Array -High performance -Lower cost -More reliable Confidential 17 How Microseismic Monitoring Works Confidential 18 USSI Gaining Critical Field Experience USSI Geophone Electronic Geophone ● Seven pilot trials two years ● First commercial trial, big system December 25, 2012 ● Soon to announce major customer trial results New Iberia - LO Fayetteville - ARK Confidential 19 Well Head Devine - TX Microseismic Needs a Higher Performance Sensor 10x Better at Low Frequency-100x at High Frequency - highest sensitivity (improved signal to noise ratio) - widest bandwidth (detects all signals of interest) - lowest noise floor (detects quieter signals) - highest temperature capable US DOE Lawrence Berkeley National Laboratory (LBNL) Richmond Field test site Confidential 20 Small Increase in Well Productivity Yields Huge Returns Two different services for unconventional oil producers Economics of 3D Vertical Seismic Profiling Current Situation Vertical well cost $1 million 30 fracs cost $9 million The Problem 20% of frac spend is effective= $2.8 million Upfront Investment: $500,000 to survey before fraccing Estimated savings by eliminating 50% unproductive frac stages= $3.1 million ROIC +600% Microseismic while fracking To Improve Yields: $400,000 per well x 8 = $3,200,000 Results: - $33M @ 10% improvement - $65M @ 20% improvement - $100M @30% improvement Confidential 21 Proven Fiber Optic Technology and Team Improves Odds of Success • Revolutionary fiber sensor emerged from DOD -USSI CEO started and led team -Built, installed world’s largest fiber sensor system -Key members of team now at USSI • USSI commercialized technology •USSI expanded IP • 7 issued and 17 patents filed •USSI licensed DOD technology • 4 issued patents Confidential 22 Acorn Energy Directors and Management Team - Chris Clouser, Chairman - John Moore, CEO - Richard Rimer, Executive Vice President - Rob McKee, Director - Mannie Jackson, Director - Ed Woolard, Advisor Confidential 23 Income Statement (Q1 2013) Three months ended March 31, 2013 Revenues $ DSIT OmniMetri x 3,315 $ 533 GridSense $ 1,543 USSI $ 325 Acorn $ — Total $ 5,716 Cost of Sales 2,011 205 882 493 — 3,591 Gross profit 1,304 328 661 (168 ) — 2,125 Gross profit margin 39 % 62 % 43 % (52 )% 37 % R& D expenses, net of credits 271 120 712 898 — 2,001 Selling, general and administrative expenses 836 1,151 1,096 781 1,392 5,256 Operating income (loss) $ 197 $ (943 ) $ (1,147 ) $ (1,847 ) $ (1,392 ) $ (5,132 ) Three months ended March 31, 2012 Revenues $ DSIT OmniMetri x 3,041 $ 103 GridSense $ 918 USSI $ 121 Acorn $ — Total $ 4,183 Cost of Sales 2,014 63 574 332 — 2,983 Gross profit 1,027 40 344 (211 ) — 1,200 Gross profit margin 34 % 39 % 37 % (174 )% 29 % R& D expenses, net of credits 176 16 218 908 — 1,318 Selling, general and administrative expenses 723 201 1,248 596 1,461 4,229 Operating income (loss) $ 128 $ (177 ) Confidential $ (1,122 ) 24 $ (1,715 ) $ (1,461 ) $ (4,347 ) Income Statement Year ended December 31, 2012 Revenues: Projects Products $ Services Total revenues Cost of sales: Projects Products Services Total cost of sales Gross profit Operating expenses: Research and development expenses, net Selling, general and administrative expenses Total operating expenses Operating loss Finance expense, net Gain on sale of HangXing 2011 14,651 $ 11,368 3,880 7,049 888 511 19,419 18,928 10,749 2,996 471 7,886 3,730 399 14,216 12,015 5,203 6,913 6,590 2,995 19,361 11,952 25,951 14,947 (20,748) 57 (8,034) (26) - Loss before taxes on income 492 (20,691) Income tax benefit (expense) (7,568) 2,956 12,767 Net income (loss) from continuing operations Loss from discontinued operations, net of income taxes Gain on the sale of discontinued operations, net of income taxes (17,735) - 5,199 (1,948) 31,069 Non-controlling interest share of loss from discontinued operations Net income (loss) (17,735) 540 34,860 Net loss attributable to non-controlling interests 1,024 Basic net income (loss) per share attributable to Acorn Energy, Inc. shareholders: From continuing operations $ From discontinued operations Basic net income (loss) per share attributable to Acorn Energy, Inc. shareholders $ $ Weighted average number of shares outstanding attributable to Acorn Energy, Inc. shareholders – basic Diluted net income (loss) per share attributable to Acorn Energy, Inc. shareholders: From continuing operations $ $ Diluted net income (loss) per share attributable to Acorn Energy, Inc. shareholders $ Weighted average number of shares outstanding attributable to Acorn Energy, Inc. shareholders – diluted Dividends declared per common share (0.93) $ 0.33 (0.93) $ $ 1.70 2.03 17,462 (0.93) $ 0.32 - $ 1.67 (0.93) $ 17,891 $ 25 $ 35,409 17,891 From discontinued operations Confidential 549 $ (16,711) Net income (loss) attributable to Acorn Energy, Inc. shareholders 0.140 1.99 17,743 $ 0.085 Balance Sheet As of December 31, 2012 2011 As of December 31, 2012 2011 ASSETS Current assets: Cash and cash equivalents Short-term deposits Restricted deposit Funds held in escrow Accounts receivable Unbilled revenue Inventory Other current assets Total current assets Property and equipment, net Severance assets Restricted deposit Intangible assets, net Goodwill Other assets Total assets $ $ 26,147 699 5,481 5,213 5,106 3,547 46,193 927 3,165 115 9,561 6,630 745 67,336 $ $ 34,280 18,000 2,223 5,961 4,965 3,778 2,144 922 72,273 635 2,620 271 4,780 4,637 589 85,805 Confidential LIABILITIES AND EQUITY Current liabilities: Short-term bank credit and current maturities of long-term debt Accounts payable Accrued payroll, payroll taxes and social Deferred revenue Other current liabilities Total current liabilities Non-current liabilities: Accrued severance Long-term debt Other long-term liabilities Total non-current liabilities Commitments and contingencies Equity: Acorn Energy, Inc. shareholders Common stock - $0.01 par value per share: Authorized – 30,000,000 shares; Issued –18,870,526 and 18,325,529 shares at December 31, 2012 and 2011, respectively Additional paid-in capital Warrants Accumulated deficit Treasury stock, at cost – 801,920 shares at December 31, 2012 and 2011 Accumulated other comprehensive income Total Acorn Energy, Inc. shareholders’ equity Non-controlling interests Total equity Total liabilities and equity 26 $ $ 153 $ 677 2,631 2,420 3,323 1,708 10,235 2,052 1,907 2,876 4,544 12,056 4,491 665 5,156 3,837 141 204 4,182 188 183 83,469 55 (29,733) 84,614 427 (13,022) (3,036) (3,036) 716 51,659 286 51,945 67,336 485 69,651 (84) 69,567 85,805 $ Cash Flows 2012 Cash flows used in operating activities: Net income (loss) before non-controlling interests Less net loss from discontinued operations Net income (loss) from continuing operations Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Depreciation and amortization Change in deferred taxes Inventory write-off Increase in liability for accrued severance Gain on sale of HangXing Stock and stock option compensation Other Changes in operating assets and liabilities: Decrease in accounts receivable, unbilled revenue, other current assets and other assets Increase in inventory Increase in accounts payable, accrued payroll, payroll taxes and social benefits, other current liabilities and other non-current liabilities Net cash used in operating activities – continuing operations Cash flows provided by (used in) investing activities: Acquisitions of property and equipment Acquisition of license Restricted deposits, net Advances to CoaLogix prior to sale Amounts funded for severance assets Proceeds from the sale of Coreworx debt and shares Proceeds from the sale of CoaLogix net of CoaLogix cash Proceeds from the sale of HangXing Escrow deposits from CoaLogix sale Release of escrow deposits Short-term deposits, net Acquisition of OmniMetrix net of cash acquired Net cash provided by investing activities – continuing operations Cash flows provided by (used in) financing activities: Proceeds from employee stock option and warrant exercises Short-term bank credit, net Proceeds from borrowings of long-term debt Repayments of long-term debt Dividends paid Other Net cash used in financing activities – continuing operations Net cash used in discontinued operations Effect of exchange rate changes on cash and cash equivalents Net increase (decrease) in cash and cash equivalents Cash and cash equivalents at beginning of the year of discontinued operations Cash and cash equivalents at beginning of year of continuing operations Cash and cash equivalents at end of year Confidential 27 $ $ (17,735) (17,735) 2011 $ 34,320 (29,121) 5,199 1,406 (1,832) 357 573 855 15 851 (14,657) 390 (492) 458 (87) (3,981) (3,076) 1,175 (22,243) (89) (1,027) 1,615 (7,839) (684) (150) 1,680 (476) 5,961 18,000 (7,835) 16,496 (502) (1,091) (278) (315) 100 62,117 492 (6,308) 347 (18,000) 36,562 1,355 (510) 16 (173) (3,208) (2,520) 134 (8,133) 34,280 26,147 211 (557) 68 (342) (613) 30 (1,203) (524) (72) 26,924 807 6,549 34,280 $