Capacity Exchange vs Trade Exchange: What's the Difference?

In short

• Both models let businesses trade using an internal balance instead of cash. The difference is how each one is governed.
• In a Capacity Exchange the operator can never run a negative balance, and the ledger cannot be rewritten after the fact.
• If the network winds down, Capacity Exchange members rank ahead of the operator and settle in pounds at par.
• A trade exchange sets your limit by creditworthiness. A Capacity Exchange sizes it by what you can realistically earn and spend.
• Before you join either, work through a short due-diligence checklist.

Why this question matters before you join

Most owners judge a trading network on the wrong question. They ask whether it works, and it usually does for someone. The question that matters is quieter. What happens to the value you earn if the operator mismanages risk, makes a decision that suits it and not you, or winds the network down? You tend to find out you asked too late only when it is already too late.

So the single idea to hold onto is this. A network that cannot harm you by design is safer than one that promises it will not. Structure holds regardless of who runs the platform or what the market is doing. A promise holds only while the party making it has the will and the means to keep it.

What is each model?

A trade exchange is a managed network where businesses buy and sell using an internal trade currency. The operator keeps the ledger, sets each member a credit limit, often employs brokers who earn commission, and commonly holds its own trading account inside the network. It is the older model, and for many members it has worked for years.

A Capacity Exchange starts from a different premise. A Capacity Exchange is a B2B network where UK SMEs sell spare capacity (unsold time, unfilled rooms, empty seats, surplus stock) for Silva instead of cash, then spend Silva on real business expenses. The operator's role is deliberately narrow: to help members match genuine spare capacity, not to accumulate balances or hold powers no member has.

Why does structure matter more than promises?

Two structural facts carry most of the difference.

First, the operator's account has a hard zero floor. It cannot go negative, because the system refuses the transaction at the application, API and ledger layers at once. The operator earns Silva by giving real value, the same as any other member. Second, the ledger is immutable. Every entry is cryptographically chained, so no one, including the operator, can quietly adjust a balance after it is recorded.

In the older model, both of these are usually matters of goodwill. The rules may say the operator should keep its own account in order, but there is rarely a hard technical limit stopping it running up a large negative balance in the network. Many rule-sets also let the operator adjust member accounts at its sole discretion, framed as error correction, without notice or appeal. That is a real vulnerability, however rarely it is used badly.

How do the two models compare, line by line?

The differences read most clearly side by side. Every row below is a structural fact, not an opinion about either side.

The right-hand column describes how trade exchanges commonly work under their published trading rules. Individual operators vary, so read the specific rules of any network you are considering.

How much should you actually be trading?

One risk sits under all of this: building up a balance you cannot realistically spend. A large, unspendable balance is not just an opportunity cost. It is exposure. If the network runs into trouble, a bigger balance means a bigger potential loss.

A trade exchange usually sets your limit by creditworthiness, which frames the question as how much you can safely owe. A Capacity Exchange asks the opposite. Your Trading Headroom is sized by what your business can genuinely earn and spend, so the structure keeps your participation balanced rather than encouraging you to over-extend. It is closer to a spending plan than a credit line.

Don't trade exchanges work fine for thousands of businesses?

Yes, and that is worth saying plainly. Mutual credit networks have created real value for businesses for decades, and a good broker who knows your trade can introduce you to buyers you would never find alone. The absence of hard protections does not mean a bad outcome is coming.

It means that if one comes, the outcome is decided by chance rather than by design. Building regulations work the same way. Most buildings without fire exits stand for decades. You still want the fire exit.

How do I check a platform before joining?

Whichever model you look at, judge it by its rules, not its pitch. A short list of questions separates a structurally safe network from one that runs on trust: can the operator run a negative balance, can it edit the ledger, what happens to your balance on wind-down, how is your limit set, and can you see what the operator is actually doing. We have written these up as a practical checklist in How to choose a trade or capacity exchange.

The structural differences between the two models are not fine print. They are the whole answer to the only question that finally matters: can this network protect the value you earn inside it? If you want the model explained from the ground up, start with What is a Capacity Exchange?.