this post was submitted on 06 Jan 2025
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Hear me out. On Reddit, the #solarpunk channel is decidedly anti-blockchain. To me, this is totally surprising and against the actual ethos of Solarpunk - to integrate technology for a bright, clean future.

Granted, blockchains don't have much reputation in alternative circles. And for a good reason. A lot is just linked to scams, get-rich-quick dudes, and speculation, apart from energy consumption arguments.

But blockchain at its core is just a distributed database. One that has no central authority, can not be tampered with, cannot be altered, nor taken down if parametrized accordingly.

This allows - as a potential - to democratize access and value creation. Renewable energy is also fundamentally decentralized. Everyone can participate!

Now, with the costs of renewable energy creation (notably solar) shrunk significantly, and the demand for energy consumption rising heavily, if we only think about the booming electric vehicles alone -

What if people could earn money by generating solar energy and selling directly to vehicles, instead of the grid? I believe this could actually boost renewable energy generation over the roof.

Generators would be rewarded with a blockchain token for the energy generated, while consumers would pay for the energy in those tokens. Therefore speculation would be curbed as the tokens are for a real thing, energy, which on top is a stable unit - kWh.

Of course there are a lot of hurdles here - mostly institutional. Usually, energy is controlled by local authorities. They don't want to allow anyone access to this market.

Then there is the distribution issue. Energy must be transported to the points of consumption, the charging stations. But due to the decentralized nature, this could actually result surprisingly cheap, as instead of transporting large distances, more charging stations in neighborhoods could reduce those distances. But still, this would require upfront charging stations and distribution investments.

I am an engineer. A dreamer. More often than not, as many many others, the realities of markets and economies clash with such ideals, thrashing generally good ideas.

But I wonder if such a scheme could made be possible. Anyone having some good suggestions? I mean mainly from the economics side. How to design the scheme, how to make it so that it is interesting to everyone? There are already several solar energy blockchains, but they kinda failed to get traction.

For the more radicals - I also dream of a money-less Solarpunk future, but to date, it seems further away than ever, looking at the right wing surge everywhere. Maybe we can build bridges at least from the technological side. Thank you if you got so far. Happy to respond to critique and questions.

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[–] partial_accumen 2 points 2 days ago* (last edited 2 days ago) (1 children)

What if people could earn money by generating solar energy and selling directly to vehicles, instead of the grid? I believe this could actually boost renewable energy generation over the roof.

If you're cutting out the grid, how do you propose getting electricity generated by solar to the EV? In your system do they have to come to my house and plug into my solar array when its sunny to collect their purchase? Or are you expecting the grid to deliver it, but not expect any compensation for grid capacity consumption, transmission and distribution of the electricity?

Generators would be rewarded with a blockchain token for the energy generated, while consumers would pay for the energy in those tokens. Therefore speculation would be curbed as the tokens are for a real thing, energy, which on top is a stable unit - kWh.

I'm a generator. Why would I want a token to buy electricity I already have a surplus of for my EV? How do non-solar EV owners get tokens? Does your system propose non-solar owners buy tokens on the open market with real money (dollars/euros) from solar generators? If I'm spending dollars/euros to buy tokens, why don't I just use my dollars/euros to buy electricity for my EV instead?

[–] [email protected] 1 points 2 days ago (1 children)

My fundamental hope was that with this idea solar energy generation would be boosted by some order of magnitude, and that people and communities would own the infrastructure and not be dependent on any government agency. Solarpunks say a lot that Solarpunk is about communities and people, and for such a vision, I thought that independence (self-reliance?) is a major requirement. However, after reading a lot of very thoughtful responses, like yours, I already came to the conclusion that it won't work in the way I explained. But I wanted to honor the time you took to respond.

The idea about the tokens would be that you could go to any community doing this thing, and use them there. They would not be confined to where the energy was generated. You generated in a LA neighborhood but spent somewhere in NYC. Even in Seoul or Kuala Lumpur, because they are kWh and not USD, so there's that utility. Consumers need to buy anyways, right? Of course the only reason to why they would buy tokens instead of paying in USD is if it would be cheaper, or if it offered some kind of other surplus utility or ease of use - for example if the tokens can also be used to pay your energy bill, or any other good. Which requires that those tokens somehow become widely accepted.

None of these criteria seem to be properties of the design I propose, and various people have already pointed out serious flaws or areas for improvement. So I guess the idea was noble but not so feasible :) Thanks!.

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[–] [email protected] 5 points 3 days ago (3 children)

But blockchain at its core is just a distributed database. One that has no central authority, can not be tampered with, cannot be altered, nor taken down if parametrized accordingly.

Which is completely useless if the data that goes into that blockchain isn't guaranteed to be correct. And if there's money in it you can bet your ass that someone will try to game the system.

You're also glossing over the existing grid that needs money to be maintained while complaining that energy companies want money. Yes, there's a general problem where society allowed (and partly encouraged) sociopaths to be unrestrained greedy assholes that needs some kind of solution, but not all companies are useless leeches, it's "just" an all-pervading corruption that needs to be dealt with - and as long as that hasn't happened, every idealistic solution faces the threat of being corrupted itself.

[–] [email protected] 1 points 2 days ago (2 children)

Which is completely useless if the data that goes into that blockchain isn't guaranteed to be correct.

You're missing the point of this. It just matters that it's consistent. The transactions that are put into the blockchain just have to follow the rules of the blockchain and be the same for everyone who reads the blockchain. That's all that "correctness" means as far as the blockchain is concerned.

And if there's money in it you can bet your ass that someone will try to game the system.

Blockchains depend on everyone involved trying to game the system. They're built using game theory to ensure that the most selfish actions for any particular actor are the best ones for the blockchain as a whole.

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[–] [email protected] 5 points 3 days ago (1 children)

This still feels like it's not answering the fundamental question for any blockchain project: why is this a blockchain instead of just a database with well configured permissions, and why are the advantages of the blockchain relevant to the problem it's trying to solve? Traditional databases can be configured to be append only, accept new data from users without needing a central authority to approve each new user, be queried by any random person, etc far more efficiently than a blockchain could and without requiring every solar panel owner to download multiple terabytes of historical transaction data just to run their panel.

As for the coins, they don't really add democratic control over a system so much as they empower whoever is best able to maximize coin generation. In a democratic system, 100 small solar panel owners would have more of a say in the governance of solar panels than 1 really wealthy South African billionaire, because they would represent more votes than the billionaire. In the coin economy, if the billionaire has at least twice as many solar panels as the rest of the small owners put together, the billionaire would have sole control over the governance of solar panels because they would be generating twice as many coins.

I admit I'm skeptic to see anything blockchain or coin related, but I've yet to see a problem that either technology are solving for other than "I want to be able to do financial transactions over the internet without using a bank or bank-like institution" and "I want an extremely volatile asset to speculate on"

[–] [email protected] 1 points 2 days ago

There is one core purpose that blockchains solve that traditional databases don't; decentralization.

If you're running something that can work just fine with a centralized database, go ahead and do that. Use the right tool for the job.

Blockchains are for applications where you can't depend on a "trusted authority" to support you. When you want to be sure you're free of any outside interference in the things you're doing, that no server can "go down" and take all of your data or operations with it.

An example of a non-financial-related activity I can offer is the Ethereum Name Service, ENS, which is a decentralized version of the DNS system. You can register a domain name with it and never have to worry about it being "seized" or going offline due to a networking failure.

[–] [email protected] 4 points 3 days ago

A blockchain that uses proof-of-work would waste far more energy than it would save, just on doing the accounting. What blockchain do you propose using that would have a minimal transaction cost, in watts and in coin?

If we're talking about local charging of EVs, I guess that would be a little like putting a gas pump in my front yard for my neighbors to use. Probably going to hit zoning issues if you open that up to general commercial use.

How does a 'solar energy blockchain' know where the electricity used to run it comes from? There's no difference between 120v ac coming from a generator or coming from the grid, or coming from a solar array.

[–] [email protected] 4 points 3 days ago (5 children)

Would it be possible for a bad actor to connect a gas powered generator and get more tokens?

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[–] dukethorion 1 points 2 days ago

Wasn't this tried years ago? I forget the name of the coin/chain.

[–] [email protected] 2 points 3 days ago (5 children)
[–] [email protected] 2 points 3 days ago* (last edited 3 days ago) (2 children)

I can't blame you for this sentiment because there is a lot of scamming. So is the current monetary system btw, even at a bigger and blunt scale.

Crypto is just math, what people do with it is something different. It's a tool, and it can be used for good as for bad.

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[–] [email protected] 2 points 3 days ago (6 children)

Solarpunk is embedded in leftist thought, and the endgame would include becoming a moneyless society. There's various debates on how to get there from here.

Does crypto help with the transition? I would say no. It requires hooking up more renewable energy just for the sake of money.

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