Watch NutrientMonkey build a nutrient budget

23-second demo · silent screencast, captions included · the free nutrient neutrality calculator

Pick your Natural England catchment, enter the dwellings and land use, and watch the nitrogen and phosphorus budget update live — the full NE methodology with the 20% buffer.

Open NutrientMonkey — free, no sign-up

What happens in the video, second by second

The clip has no narration, so here is the whole thing written out — the same text is on the video as a caption track. Every figure below is what is actually on screen at that moment.

  1. 00:00 Poole Harbour catchment, nitrogen. NutrientMonkey opens on Natural England’s nutrient budget methodology, running entirely in the browser. Catchment: Poole Harbour SPA / Ramsar. Nutrient assessed: nitrogen.
  2. 00:03 Load a worked scheme. The “Example” button is used to load a worked scheme.
  3. 00:07 A 4-dwelling scheme loaded. A toast confirms it: a 4-dwelling scheme in the Poole Harbour SPA / Ramsar catchment, “Land at Meadow Lane”, Dorset Council, planning ref EC-DEMO-NN.
  4. 00:08 The waste-water worksheet. The waste-water worksheet fills in: 4 dwellings, occupancy 2.4 people per dwelling, Building Regs minimum 125 l/p/d, mains sewer to waste water treatment, a 20 mg/l TN current permit and 10 mg/l after 2030.
  5. 00:11 Change the dwellings, the budget updates live. The dwelling count is changed — 4, then 6, then 8 — and the header budget updates live with every keystroke: 11.22, then 16.99, then 22.57 kg N per year.
  6. 00:15 Nutrient budget: 22.57 credits required. The nutrient budget and credits worksheet: waste water pre-2030 18.92, current land use 0.96, future land use 0.85, SuDS removal 0.00. Budget pre-2030 22.57 and post-2030 11.22, so nitrogen mitigation required = 22.57 credits, permanent total.
  7. 00:19 End card. Closing card — NutrientMonkey, the free nutrient neutrality calculator, all 27 catchments, nitrogen and phosphorus.

What you're seeing

All 27 catchments are in there, and the calculation itself is free as you type. Planning-ready PDF reports are £79 +VAT.

Full detail — method, standards, pricing and FAQs — is on the NutrientMonkey page.

The other demos

Seen enough?

NutrientMonkey works exactly like the clip — free in your browser, no account. Open it and try your own numbers.

Work out a nutrient budget — free or call 01202 623236