About us
Alamo Sierra Club (local branch of the Sierra Club) holds outings including hiking, camping, bicycling, backpacking, etc.
Upcoming events
15

Alamo SC Meeting - Approaching Carbon Neutrality in a Mid-Century Home
Eco Centro, 1802 N Main Ave, San Antonio, TX, USOur February 17th meeting features Alan Montemayor of San Antonio. He will discuss how he and his wife achieved their goal of an all-electric home with energy consumption largely offset by renewable solar energy.
This is an in-person-only meeting
Venue:
William R. Sinkin Eco Centro, 1802 North Main AvenueMeeting schedule
| Informal get-to-know-you | 6:00 to 6:15 pm |
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| Announcements | 6:15 to 6:30 pm |
| Featured program | 6:30 to 7:30 pm |
| Discussion | 7:30 to 8:00 pm |## Program topic
Alan Montemayor and Cheryl Hamilton have prioritized energy efficiency over aesthetic changes to their mid-century home during the past thirty years. While retaining the original kitchen, bathrooms and flooring, they have substantially reduced their carbon footprint. In the mid-1990’s they added attic insulation, double-paned external windows/doors, native plant landscaping and energy efficient appliances. Between 2000 and 2020, they added a standing seam metal roof, wide gutters, two 1600-gallon rainwater tanks, a raised bed garden, ten solar panels and two battery electric vehicles.
For the past five years, Alan and Cheryl have generated as much solar energy as they consumed from CPS Energy. This includes charging two electric vehicles for free in that time frame. They have recently added five more solar panels and replaced aging natural gas appliances and their furnace with a high efficiency heat pump air conditioning system, heat pump water heater, and heat pump clothes dryer.
In December CPS Energy removed the natural gas meter as they reached their goal of an all-electric home powered by renewable solar energy.
## About our presenter
Alan is a lifelong San Antonio native and has been active with the Sierra Club since 1983. He has a Bachelor of Science in mechanical engineering from Texas A&M University and worked at Southwest Research Institute for 25 years, designing alternative fuel vehicles. He is an environmentalist, hiker and do-it-yourselfer.
Before COVID, Alan and his wife loved to travel the world. He’s passionate about conservation of natural resources, clean energy, local agriculture, sustainability and improving the quality of life for not just San Antonio and Bexar County but the whole world. His efforts are directed towards local actions that will lead to sustainable energy, water, air quality and food policies for our region. Climate justice is a large part of that local work, and there’s plenty to be done.
Alan is chairman of the Alamo Group of the Sierra Club and sits on the board of the Greater Edwards Aquifer Alliance. He says, “I thought retirement would allow me to sleep late and enjoy life, but I’m up every morning at 6am, ready to save the world.”
Eco Centro is located at San Antonio College, 1802 North Main Avenue @ Locust Street. There is a parking lot adjacent to Eco Centro which is entered from Locust Street.
We can also use SAC parking lots 14, 15 and 17 (map of parking lots) to the north, west and south of the STIC building across North Main Avenue from Eco Centro. Parking is also allowed on the residential streets to the east, north and south of Eco Centro.
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31st Annual Basura Bash
Location not specified yetSign up for the 31st Annual City Wide Basura Bash!
https://basurabash.org/
https://basurabash.org/tributaries/You can sign up as an individual or a team
This is an Unhosted event - please direct any questions to the Basura Bash team at https://basurabash.org/
ATTENTION VOLUNTEERS!
Here’s what you need to know to help pitch in with the Basura Bash Annual Waterways Cleanup Event.
WHAT:
Volunteers will collect trash from the banks of San Antonio area waterways listed below.
WHEN:
Registation/Check-in: 8:30 AM – 9:00 AM (Some Tributary Captains may offer breakfast at 8:00 am – check Tributary page for info)
Waterways Cleanup: 9:00 AM – 12:00 PM
WHERE:
Various parks and other areas along the waterways.
IMPORTANT:
All volunteers must complete a liability form to participate in Basura Bash.
Please review our liability waiver and be prepared to sign it on site the day of Basura Bash.
Click Here to download the Liability FormThe waterways and greenways that define San Antonio need your help. Every year, our community unites for one city-wide mission: The 31st Annual Basura Bash Citywide Waterway Cleanup! But let’s be clear—we aren’t just picking up litter. We are protecting the places we love and restoring the beating heart of our city.
We all have one shared purpose: to remove debris from our beloved rivers and creeks and reclaim our special natural zones from basura.
The impact of just three hours is incredible. Last year, 2,130 volunteers worked side-by-side to recover over 105,000 lbs of trash from the San Antonio River Basin. This year, on March 7th, we are ready to do it again.
| Registration is now Live at BasuraBash.org |
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|| Register Here! |
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Cleanup Date: Saturday, March 7, 2026
Time: 9:00 AM – 12:00 PM
Multiple cleanup locations across San AntonioBasura Bash’s Lifetime Impact

54,782 volunteers have participated
971.47 tons of bagged trash removed (1,942,930 lbs.!)
33.52 tons of recyclables collected (67,040 lbs.)
36.23 tons of metals recovered (72,460 lbs.)
7,566 tires removed from local waterways1 attendee
Alamo Sierra Club Monthly Meeting
Eco Centro, 1802 N Main Ave, San Antonio, TX, USThe Alamo Group of the Sierra Club holds its general meetings the 3rd Tuesday of most months. They're always free and open to the public.
Meeting schedule
Informal get-to-know-you 6:00 pm to 6:15 pm
Announcements: 6:15 pm to 6:30 pm
Featured program: 6:30 pm to 8:00 pm
Venue:
William R. Sinkin Eco Centro, 1802 North Main AvenueEco Centro is located at San Antonio College, 1802 North Main Avenue @ Locust Street. There is a parking lot adjacent to Eco Centro which is entered from Locust Street.
We can also use SAC parking lots 14, 15 and 17 (map of parking lots) to the north, west and south of the STIC building across North Main Avenue from Eco Centro. Parking is also allowed on the residential streets to the east, north and south of Eco Centro.
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|1 attendee
Past events
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