Sustainability Living Podcast: Recent Episodes

Ben Tristem

Join us for amazing discussions on how to look after your own Food, Energy and Water. Not forgetting your own Shelter, Medicine, Air, Recycling and Transport

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Simpler

  • Buy less stuff that creates waste in the first place.
  • Buy cheap, buy twice.
  • Glass is reusable and washable.
  • Care of disposable items.
  • Some brands use less / no packaging.
  • Buy local / markets etc. You can actually talk to people.
  • Buy bulk.
  • Take your canvas bag to the supermarket
  • Take your container of eggs with you.
  • Delivery food has a lot of packaging.
  • Local farmer box or something.
  • Think before hitting that “Buy” button on Amazon.

Smarter

  • Purchase with recycling in mind.
  • Re-fill things. Surface area to volume area scaling.
  • Ask your car supplier what will happen at the end of life.
  • Where can you recycle batteries locally?
  • How repairable is what you are about to buy?

Sustainable

  • Recycle stuff yourself, if not then recycle locally.
  • One person’s trash is another’s treasure.
  • Give stuff away, but only consumables
  • Have a well organized storage system at home- then you can store, not hoard.
  • Compost to a warm or cold compost bin.
  • Buy food and nutritional supplements from companies who design sustainable packaging https://linktr.ee/revivemyhealt
  • Yoghurt pots cut-up for plant labels, or to plant seedlings
  • Cook just enough for those eating.
  • Cardboard-Re-use for returns, eBay, etc., If plain and simple compost it, Give it kids to play with.
  • Know what you can recycle locally.
  • Perhaps creating Biochar from plastic is an option.
  • Styrofoam cup recycling: Liquify it with acetone. Mould something cool with what’s left.
  • Lobby to ban single use plastics, maybe through Citizens’ Climate Lobby.
  • Electronics-Is there a small appliance recycling bin somewhere?
  • Look for someone local to fix your electronic stuff.
  • Be brave, try and fix it yourself. Ask here.
  • Buy durable appliances, maybe https://www.miele.com or https://numatic.co.uk
  • Do recycle batteries properly, they can be quite toxic.

Sequestered

  • Pay to offset the carbon of what’s left.

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If you’re reading this then you’re using a gadget, but how much energy do our gadgets use? Are they efficient or inefficient? Is this something we should lose sleep over?

  • Switching off your charger for one day is used up in 4 seconds of car-driving.
  • The energy saved in switching off the charger for one year is equal to the energy in a single hot bath.
  • Use a Kill a Watt or similar to test for yourself.
  • Even a large TV may use 250W for 4h a day = 1 kWh per day.
  • That’s less than 1% of European personal energy use.

Big factors are…

  • Efficiency of the motor etc.
  • Surface area (lower better).
    • Bigger are fundamentally better.
  • Thickness of insulation (thicker better).
  • Temperature of the room (lower is better).

Discussion* Long tail effect comes in here. * Heating water on demand? + BUT they use pure un-magnified electrical energy. + You could be heating from carbohydrates (e.g. gas, biomass). + Need to be situated close cause of dead water. * Opening fridge door. + Not too much of an issue if you do it briefly. + The sensible heat of dry air is quite low. * Look for “switched-mode” power supplies. + Feel things to see if they are warm.

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  1. Solar Power: Installing solar panels on your property is a popular and environmentally friendly way to generate electricity. Solar panels convert sunlight into electricity through photovoltaic cells. The electricity generated can be used to power your home or stored in batteries for later use.
  2. Wind Power: If you live in an area with consistent wind patterns, you can consider installing a wind turbine. Wind turbines harness the power of wind to generate electricity. Like solar power, the electricity can be used directly or stored in batteries.
  3. Microhydro Power: If you have access to a flowing water source, such as a stream or river, you can use microhydro systems to generate electricity. Water turbines or waterwheels are used to convert the energy from the moving water into electrical power.
  4. Biomass Energy: Biomass energy involves using organic materials, such as wood or agricultural waste, to produce electricity. Biomass can be burned directly to generate heat and power or converted into biogas, which can then be used to produce electricity.
  5. Generators: Portable or standby generators powered by fossil fuels (such as gasoline, diesel, or natural gas) can be used to generate electricity. While generators can provide a temporary power supply during emergencies or in off-grid situations, they are typically not considered long-term sustainable solutions due to their reliance on non-renewable resources and emissions.

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Do you know how much energy is used in the home? By learning what is wasting electricity, we can do something about it and reduce our cost $$.

For Example
If things are getting hot, and they’re not heaters, they’re inefficient.
Switching off gadgets when they’re not in use
Some ideas for efficiency;

  • Add water bottles to your freezer and use them to keep your fridge cold, extra water storage, keep yourself / pets cold.
  • Buy a solar oven to cook outdoor and purify water via boliing
  • Learn where your energy comes from
  • Measure your appliances' energy use

According to the International Energy Agency, standby power consumption accounts for roughly 8% of residential electricity demand.
David JC MacKay- Sustainable Energy- without hot air

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How much energy do cars use?
Is it improving over time?
Can they get much better?
What does it depend on?
How does it compare to other energy consumers?
How does your driving affect energy use?

Frontal Area & Drag Coefficient
Weight & Rolling Resistance
Total Cruising Power
Solar Driving

The Energy Efficiency of Cars 🚙⚡️About SmartFew.orgMusic courtesy of https://www.melodysheep.com.Bullet notes, recordings, PDFs at SmartFew.org.
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Ben is a fan of electric vehicle, but not fanatic, an electrical engineer but not an EV engineer, a Tesla owner (X then 3) but not fossil.
Electricity is everywhere we go, gasoline is only where we take it.

  • Choose your charging energy source consciously.
  • Be aware your mass is 100kg, and an EV is over 1000kg.
    • This is fundamentally inefficient.
  • Keep an eye on Hydrogen as an option, especially for fleet vehicles.
  • Be sure your solar installation can work when the grid is down.
    • That is get a battery, and perhaps some DC coupled panels.
    • Look into “vehicle to grid” capable cars.
  • Be realistic about the benefits of EVs, see through marketing
  • Displacing other forms of travel.
    • Think driving instead of flying.
  • How to be self-sovereign in transport.
    • AC vs DC coupling.
    • Going off in a power cut vs not.
  • Grid impact?
    • Texas has its own grid, cannot accept power from other states.
  • Recycling of batteries.
    • Tesla currently constrained by the lack of old batteries.
    • They won’t go into landfill because they are so valuable.
  • .

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Sustainability Solutions

Startups Featured

Zumee; An alternative to Eco Friendly cars for short trips.Eco Vehicle Start-up - Designing a new range of low carbon vehicles, and transport solutions.
A Net Zero Future

  • Costs only 34p per day to run.
  • Ditch your gym membership
  • Ditch your car
  • Charge your devices from energy stored on your commute
  • Trips up to 60km.
  • Prototype stage, should be ready 2023.
  • Vehicles made using recycled plastic and cost <£5,000.
  • See also The Energy Efficiency of Cars 🚙⚡️
  • Developed an Autonomous Driving system in collaboration with CEMET

See Zumee in our database.

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10 Episodes in, what have we learned?

  • What is Sustainability
  • Why should we care about Sustainability
  • Energy vs Pollution goals
  • Individual Behaviors Should Change
  • Think before you Click and Buy
  • Using Home Assistant to power off devices and room lights
  • Consciousness is key to Sustainability
  • Non Profit Organization dedicated to spreading the message about Sustainability
  • Bens Mission

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Sustainability Solutions

Startups Featured
Fashion that restores the planet for you, without the hassle of owning it.

⚠️ Fashion produces 4-8% of CO2 emissions globally!

Using materials that either reduce pollution or restore biodiversity, our clothes are designed in a way that they are recyclable.

Based on how often you repeat your outfits, you can choose to buy to keep for as long as you like and return for guaranteed store credits, or, rent to wear once.

Once the outfit is worn out we take the responsibility of recycling it.

Renting recyclable clothes ensures savings in carbon emissions and methane emissions.

  • They are focusing on B2B (Business to Business) at first.
  • Projected 4.5MT per year CO2 saving in the UK alone.
  • Currently pre-seed stage.
  • Looking for angel investors, around £10,000+.

Sustainability Solutions

Startups Featured

Carbon negative? Focus on recycling / waste negativity & clean logistics.

Satatland Circular Fashion

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Sustainability Solutions

Startups Featured

Low emissions, high efficiency bottle packaging.
https://packamama.com/
Packamama | Packaging Protecting Mother Earth | Home of eco-flat wine bottles

Low emissions, high efficiency bottle packaging.

Operating in the commercial wines space.

  • Fine wines need glass as O2 barrier.
  • Save about 1kg of CO2 per case of bottles.
    • Maybe 1 Billion bottles / year at full scale.
    • So that’s 1B/6=160MT of CO2 saved.
      • That’s 0.4% or 2022 emissions.

Carbon negative plans? Perhaps through Biochar to sequester CO2 into the bottle.

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Sustainability Solutions

Startups Featured

Unifi.id
Making buildings more sustainable and efficient, whilst reducing overall costs and enhancing safety must be your priority.

  • Focused on commercial real-estate.
    • Responsible for 40% of CO2 emissions apparently?
  • They help them manage the buildings more efficienctly.
  • They use occupancy data and data analysis.
    • Can predict occupancy of buildings floor-by-floor.
    • Integrates to BMS (Building Management System).

Fairly established startup working with some large companies.

  • Have built many sensors for long-range detection of RFID (Radio Frequency ID) cards.
    • For example hotel room ID cards.

No data going to China.

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Sustainability Solutions

Startups Featured

Wasteshark

Cleaning up waterways with small unmanned robotic boats. Richard Hardiman

  • Zero greenhouse emissions
  • Ease to operate
  • Low cost
  • Reliable operation in salt, fresh and brackish water

The “Waste Shark” is their first product.

  • Hunts trash, e.g. biomass or plastics.
  • A coffee-table sized robot.
  • Stays on the surface.

Startup of currently 20 people.
Problem: currently, 18 billion pounds of post-consumer plastic waste drains into oceans yearly.

  • They use Eureka water probe on the robot.
  • Size of battery? How long without charge?
    • 6h of autonomy according to specs (manual drive)
    • 10h of autonomy according to Richard (auto drive)
    • Battery capacity:
    • Maybe 1m^2 of usable space on roof?
    • UK averages about 22 W m^-2.
    • Can operate day and night.
  • It’s quite hazardous for humans to clean waterways.

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Sustainability SolutionsStartups FeaturedLimetrack Helping businesses track, report on and reduce food waste saving CO2 in the process by Andy King

Homepage " Limetrack
Brits consume about 1.5 teabags a day each (calc).
Anaerobic digestion of 6 teabags could provide the energy to boil a cup of tea. Assuming 8 kWh / kg that’s 0.02 kWh energy (calc)Boiling a cup takes maybe 0.1 kWh energy (calc)
Data, smart bins, collection economics, blockchain
Decomposing food waste produces methane.
They want to do this without a “green premium”.
GOAL: Help businesses reduce their food waste with analytics.

  • Based in Surrey.
  • Got an Innovate UK Grant.
  • Predominantly B2B (Business to Business)
  • ‣ of Limetrack.

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Sustainability:The use of the ecosystem and ecosystem services in such a way as to allow a community or society to operate indefinitely resilient to external changes / shocks.

  • Are cities an Environmental Contradiction?
  • If you can’t recycle it then you it’s not sustainable.
  • It’s really important to spread the word, increase consciousness.
  • What’s the social cost of transitioning to clean energy?

Everything works both ways – Every resource is either an advantage or a disadvantage, depending on the use made of it.

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What is Sustainability?

  • able to be maintained at a certain rate or level.
  • a societal goal that broadly aims for humans to safely co-exist on planet Earth over a long time.
  • Development that meets the needs of the present without jeopardising the needs of those in the future.

Sustainability: The use of the ecosystem and ecosystem services in such a way as to allow a community or society to operate indefinitely resilient to external changes / shocks. What are the Principles of Sustainability?

  • The time window we pick changes our decisions.
  • 100 years is probably too short (think of our kids).
  • 10,000 years may be too long (too much uncertainty)?
  • Maybe 1,000 years is a sweet-spot?
  • Lots of connections between parts → resilience.
  • Efficiency is much less important in sustainability.
  • Think of solar panels’ lifecycle for an example.

Sustainability Illustrated on YouTube

In a sustainable society, nature is not subject to systematically increasing…

  • Concentrations of substances extracted from the Earth’s crust.
  • Concentrations of substances produced by society.
  • Degradation by physical means.

… and in this society people are not subject to conditions that systematically undermine their capacity to meet their needs.

Permaculture Principles by Bill Mollison - World Permaculture Association

  • Dynamic
  • Egalitarian.
  • Needs based.
  • Networks of small communities.
  • Individual autonomy with high co-orperation.
  • Recycle everything.

Things we need to keep high-tech…

  • Communication.
  • Medicine.
  • Some long distance travel.
  • R&D inc. Earth defence.

The 3 P’s

  • AKA “Triple bottom line”.
  • People, Planet, Profits.
  • This reads are corporate spiel.
  • See UN’s SDGs for some sustainable goals.
  • Not really actionable and misses the point.

The Rest of the Discussion

The limiting factor is pollution.

  • If you can’t recycle it then you it’s not sustainable.
  • It’s really important to spread the word, increase consciousness.
  • What’s the social cost of transitioning to clean energy?

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Energy Sustainability Essentials:

  • Why: confidence in ability to look after self.
  • Water analogy .
    • Height = voltage (V)
    • Current = flow (A)
    • Resistance is what it sounds like (Ohms)
    • Charge is water (A)
    • Energy is work (kWh = 3600KJ)
    • Power is speed of work (W)
  • AC = Alternating Current (think mains).
  • DC = Direct Current (think batteries).
  • Inverter converts DC to AC.
  • Regulator regulates current or voltage.
  • Hemp batteries may be promising?

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How To Thrive 3 Days Without Power

  • Energy is a daily issue in West Africa.
  • Ben uses an solar generator.
  • Remember load shedding importance.
  • Candles are 50-100W of heat.
    • Similar output to a human body.
    • Heat a Terracotta pot?
  • Albert Bates @peaksurfer lives in an eco village.
    • Stack cooling.
    • How about a living roof on the garages??
    • “Like learning to sail a boat”.
    • Wrote “Post petroleum survival guide & cookbook”.
  • Look at Arabic Architecture e.g. passageways.
  • Try making an evaporative cooling refrigerator.
    • Combine with tight temperature control?
  • It’s a “cat hole” for pooing in the woods.
    • 70 steps away from any water or campsite.
    • Choose a sunny spot (more fertile).

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Ideas
Lookup Sawyer Squeeze filter.
Care of heated water / Legionella.
"Water re-use / conservation". 
"Not all water is waste".
Black / grey / blue water.
Keep a frozen bottle of water. 
"A cold water bottle".
Micro start XP 1 battery.
Workout to create power. Dynamos
Hand cranked torches etc.

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