The price you see is the price you pay

The surprise nobody wants at the charging bay

When we started building Volta, the charging landscape in the UK was fragmented across 40+ networks. What struck us wasn't just the number of operators, but how opaque the pricing was. A driver could see the per-kWh rate, sure. But that wasn't the full story. Add parking fees. Add idle charges. Add VAT. Some networks layer on membership discounts. Others don't. A 30-minute charge that looked like £12 could become £18 depending on how long your car sat there after juice was in the battery.

The real frustration came from talking to fleet managers. They couldn't build accurate cost models because they didn't know what their drivers would actually pay until the receipt landed. That's not just an inconvenience for a solo commuter. For a business running 20 vehicles, that's chaos.

We realised early on that showing a partial picture was worse than showing no picture at all. A driver who sees 35p per kWh and then gets hit with a £5 idle charge feels deceived, even if the network operator disclosed it somewhere in their terms. That's not a technology problem. It's a trust problem.

Pulling all the threads together

The work to build true total cost preview wasn't clever. It was tedious. We had to map how each of the 40+ networks actually charged. Some publish their tariffs openly. Others buried pricing in PDFs or behind login walls. We called network operators. We tested chargers ourselves. We built rules for each one because there was no standard.

Then came the hard part. Idle fees vary wildly. Some networks don't charge them. Others start at 90 minutes. A few charge from minute one. Parking fees aren't part of the charging network at all, they're part of the location. A charger at a supermarket is free to park. One at a services station might be £2.50. We had to find that data, verify it, keep it current.

By the time you open Volta and look at a charger, you're seeing the real numbers. Not an estimate. Not best-guess math. The actual pence per kilowatt-hour, the parking cost if we know it, the idle fee if there is one, the tax on top. It's all baked into that total before you tap.

It sounds basic. It shouldn't need to be a feature. But it is, because nobody else was doing it.

Why this matters for route planning

Once we nailed the total cost at a single charger, the next piece fell into place. Journey planning with route-level charging visibility. A commuter planning a trip to Edinburgh needs to see not just where to charge, but what the whole route costs. Is it cheaper to charge once at a motorway services? Twice at supermarkets? Stay at a charger longer to avoid an idle fee?

For fleet managers, this became a game changer. A business can now set policy controls on what their drivers are allowed to spend per charge, per day, per month. They can see cost-centre reporting that shows actual spend versus budget. The receipts export means their finance team doesn't spend three hours chasing receipts across five different networks.

None of this works if the cost data is wrong or incomplete. That's why we keep rebuilding this foundation. Every time a network changes its pricing, we update it. Every time we find a location with inaccurate parking data, we fix it.

The other side of the coin

Volta isn't just for drivers finding chargers. We've built a community charging marketplace where homeowners and venues can list their chargers and earn from them. A pub with a spare charger can put it on the map, set their own price, and take bookings. A home charger host can earn a few quid when a neighbour needs a top-up.

But that only works if the pricing is transparent too. If a home host lists their charger at 28p per kWh, they need to know their actual cost so they don't price themselves into a loss. When someone checks into their charger through Volta's arrive-to-charge feature, there's no confusion about what it cost or what the host made from it.

The accessibility filters are there for the same reason. A driver using an accessible bay needs to know they can actually reach the charger, the payment terminal, and get back to their car safely. We show which locations have accessible bays. Not all do. It matters.

What we learned by going all-in on honesty

Building Volta with true total cost as the foundation meant we couldn't cut corners. We couldn't hide fees in fine print. We couldn't show an attractive headline number and bury the reality. Every bit of our infrastructure, from the map layer to the route planner to the fleet dashboard, assumes that the driver or fleet manager will know the real cost before they commit.

That discipline shapes how we build. When someone asks for a feature, we ask: does this help them make a better decision with better data? When we launch a new premium tier, we're transparent about what it costs and what it unlocks. Not because we're altruistic. Because EV charging is expensive enough without surprises.

The free version shows you the map and the true total cost. That's the foundation. The premium features add route optimisation, fleet management, and the tools for hosts to earn from their chargers. But the cost transparency is never gated.