Industry guides
Energy and environment events in the United States in 2026–27: where to focus
The 2026–27 US energy and environment calendar: RE+, CERAWeek, OTC, CLEANPOWER, DTECH, WEFTEC and Gastech, by sector, with dates and how to choose.
By the atndr teamPublished 6 min read
The short answer
The biggest US energy and environment events in 2026–27 are RE+ in Las Vegas (16–19 November 2026) for solar and storage, CERAWeek in Houston (8–12 March 2027) for energy leadership, the Offshore Technology Conference in Houston (3–5 May 2027) and Gastech in Houston (14–17 September 2027) for oil, gas and LNG. Grid, water and waste have their own flagships: DTECH in Atlanta, WEFTEC in Chicago and WasteExpo in Las Vegas.
Key takeaways
- Houston is the centre of the oil, gas and LNG calendar: NAPE, CERAWeek, OTC, IMAGE and Gastech all take place there in 2027.
- Clean power splits into three big shows: RE+ (Las Vegas, November), Intersolar & Energy Storage North America (San Diego, February) and CLEANPOWER (Anaheim, May).
- Utilities and grid teams meet at DTECH (Atlanta, 1–4 March 2027) and POWERGEN (Salt Lake City, 18–21 January 2027).
- Water and waste professionals have WEFTEC (Chicago, 25–29 September 2027), AWWA ACE27 (San Diego, June) and WasteExpo (Las Vegas, May).
- Society-run technical conferences such as SPE ATCE and OTC suit engineers; executive conferences such as CERAWeek suit strategy, policy and investment roles.
On this page
What does the US energy and environment calendar look like?
The US calendar runs all year, but it is split by sector and by city. Oil and gas gathers in Houston. Solar, storage and wind move between Las Vegas, San Diego and Anaheim. Grid and utility events go wherever the utilities are, and water and waste shows rotate between large convention cities.
| Month | Notable events | Sector |
|---|---|---|
| Oct 2026 | SPE ATCE 2026, Greenbuild 2026, Utility Analytics Week 2026 | Upstream oil and gas, green building, utility data |
| Nov 2026 | RE+ 2026, AMI Plastics World Expos 2026 | Solar, storage, plastics recycling |
| Jan 2027 | POWERGEN 2027 | Power generation |
| Feb 2027 | NAPE Summit 2027, Intersolar & Energy Storage North America 2027, Hydrogen Technology Expo North America 2027 | Oil and gas deals, solar, hydrogen |
| Mar 2027 | CERAWeek 2027, DTECH 2027, MINEXCHANGE 2027 | Energy leadership, grid, mining |
| May 2027 | OTC 2027, WasteExpo 2027, ACT Expo 2027, CLEANPOWER 2027 | Offshore energy, waste, fleets, clean power |
| Jun–Jul 2027 | AWWA ACE27, Valve World Americas 2027 | Drinking water, flow control |
| Aug–Sep 2027 | IMAGE 2027, Gastech 2027, WEFTEC 2027 | Geoscience, gas and LNG, water quality |
| Oct–Nov 2027 | The Battery Show North America 2027, RE+ 2027 | Batteries and EVs, solar and storage |
The full, live list is on atndr's energy and environment events in the United States page.
Which events matter most in each sector?
Each sector has one or two flagship events; start there and add specialist events once you know the field.
Oil, gas and LNG
CERAWeek 2027, run by S&P Global at the Hilton Americas-Houston on 8–12 March 2027, is where energy CEOs, ministers and investors debate strategy. The Offshore Technology Conference 2027 runs 3–5 May 2027 at Reliant Park, Houston, co-located with URTeC; its organiser describes an audience of about 25,000 energy professionals. Gastech 2027 comes to the George R. Brown Convention Center on 14–17 September 2027. Engineers also follow the society meetings: SPE ATCE 2026 (21–23 October 2026), the SPE Hydraulic Fracturing Technology Conference 2027 and IMAGE 2027 for geoscientists. NAPE Summit 2027 (3–5 February) is the marketplace for buying and selling prospects and producing properties.
Solar, storage, wind and hydrogen
RE+ 2026 is at the Las Vegas Convention Center: education runs 16–18 November and the show floor 17–19 November 2026. It is powered by SEIA and SEPA, and the next edition, RE+ 2027, is set for 15–18 November 2027. Intersolar & Energy Storage North America 2027 (San Diego, 9–11 February) suits installers, EPCs and distributors. CLEANPOWER 2027 (Anaheim, 24–27 May), from the American Clean Power Association, covers wind, solar, storage, transmission and dealmaking. Offshore wind has IPF: Tech at Sea 2027 in Newport, Rhode Island, and hydrogen has the Hydrogen Technology Expo North America 2027 in Houston.
Power generation and the grid
POWERGEN 2027 (Salt Lake City, 18–21 January) is for utilities, independent power producers, EPCs and OEMs adding generation. DTECH 2027 (Atlanta, 1–4 March) focuses on transmission and distribution. Fleets moving to electric and alternative fuels meet at ACT Expo 2027 (Las Vegas, 17–20 May), and battery engineers at The Battery Show North America 2027 (Detroit, 11–14 October).
Water, waste and materials
WEFTEC 2027 runs 25–29 September 2027 at McCormick Place, Chicago; the Water Environment Federation lists more than 1,000 exhibitors and 125-plus technical sessions. Drinking water utilities meet at AWWA ACE27 (San Diego, 13–16 June). WasteExpo 2027 (Las Vegas, 3–6 May) serves haulers and public-sector operators, and the Plastics Recycling Conference 2027 (National Harbor, 1–3 March) covers the recycling value chain. Architects and developers working on sustainable buildings go to Greenbuild 2026 in New York.
Technical conference, trade show or executive forum: which should you attend?
Engineers get the most from technical conferences, buyers and sellers from trade shows, and senior leaders from executive forums.
| Format | Examples | What happens | Best for |
|---|---|---|---|
| Technical conference with exhibition | SPE ATCE, OTC, IMAGE, WEFTEC, AWWA ACE | Peer-reviewed papers, short courses, an expo | Engineers, scientists, utility staff |
| Trade show | RE+, Intersolar, POWERGEN, WasteExpo, Gastech | Large show floor, product launches, education tracks | Buyers, distributors, project developers |
| Executive forum | CERAWeek | Plenary and dialogue sessions with energy CEOs and ministers | Executives, investors, policy teams |
| Marketplace | NAPE Summit | Booths for buying and selling assets | Landmen, A&D teams, investors |
| Association meeting | CLEANPOWER, Southeastern & International Propane Expo | Industry policy, networking, an expo | Members and their suppliers |
Many technical conferences are run by professional societies, such as the Society of Petroleum Engineers for SPE ATCE and OTC, or the American Water Works Association for ACE27. Members usually pay less, so joining the society can pay for itself if you attend once a year.
Where do these events take place?
Houston and Las Vegas host the largest share of this calendar, followed by San Diego, Chicago and Atlanta.
| City | Main venues | Events in 2026–27 |
|---|---|---|
| Houston | George R. Brown Convention Center, Reliant Park, Hilton Americas-Houston | SPE ATCE, NAPE, CERAWeek, OTC, Hydrogen Technology Expo, Valve World, IMAGE, Gastech |
| Las Vegas | Las Vegas Convention Center | RE+, WasteExpo, ACT Expo |
| San Diego | San Diego Convention Center | Intersolar & Energy Storage North America, AWWA ACE27 |
| Chicago | McCormick Place | WEFTEC |
| Atlanta | Georgia World Congress Center | DTECH |
| Others | Salt Lake City, Anaheim, Denver, Detroit, New York | POWERGEN, CLEANPOWER, MINEXCHANGE, The Battery Show, Greenbuild |
International visitors should check whether they can travel under the Visa Waiver Program with an ESTA or need a business visa, and allow time for an embassy interview before spring events such as CERAWeek and OTC.
How to choose the right energy event in the US
Pick by your sector first, then by whether you need technical depth, buyers or senior contacts.
- Upstream oil and gas engineer: SPE ATCE or OTC, plus the SPE hydraulic fracturing conference if you work in completions.
- Energy strategy, investment or policy: CERAWeek in March.
- Solar or storage developer, installer or distributor: RE+ in November; add Intersolar in February for the West Coast market.
- Utility or grid technology: DTECH for transmission and distribution, POWERGEN for generation, Utility Analytics Week for data teams.
- Gas and LNG trading or infrastructure: Gastech in September 2027.
- Water or wastewater utility: WEFTEC for wastewater and water quality, AWWA ACE for drinking water.
- Fleet electrification or alternative fuels: ACT Expo in May.
If you cover several sectors, March to May 2027 in Houston (CERAWeek, then OTC) and November in Las Vegas (RE+) give the widest view of the US energy market in the fewest trips.
Frequently asked questions
- What is the biggest clean energy event in the US?
- RE+, powered by SEIA and SEPA, is North America's largest clean energy event. RE+ 2026 runs 16–19 November 2026 at the Las Vegas Convention Center, and RE+ 2027 is set for 15–18 November 2027.
- When is OTC 2027?
- The Offshore Technology Conference 2027 runs from 3 to 5 May 2027 at Reliant Park in Houston. URTeC is co-located with it.
- Why are so many energy conferences held in Houston?
- Houston is the main hub of the US oil, gas and LNG industry, so its operators, service companies and traders are already there. CERAWeek, OTC, NAPE, IMAGE and Gastech all take place there in 2027.
- Which US event covers water and wastewater?
- WEFTEC, run by the Water Environment Federation, is the main water quality conference and exhibition. WEFTEC 2027 runs 25–29 September at McCormick Place, Chicago.
- Is CERAWeek open to everyone?
- CERAWeek is a paid executive conference run by S&P Global, aimed at energy executives, policymakers, investors and innovators. Registration is through S&P Global.
- Where can grid and utility professionals meet suppliers?
- DTECH, held 1–4 March 2027 in Atlanta, is the main transmission and distribution event. POWERGEN, held 18–21 January 2027 in Salt Lake City, covers power generation.
Sources
Written and fact-checked by the atndr team. Dates, venues and organizers are checked against each event’s official website; the figures in “At a glance” come live from the atndr calendar. Spotted something out of date? Tell us.
