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Ampworth calculators

com.ampworth/calculators · v1.0.20261016

UK solar PV and heat pump calculators that follow the published MCS methods. Open, no key.

Connect Remote server

Terminal
claude mcp add --transport http calculators https://ampworth.com/mcp/calculators
~/.cursor/mcp.json
{
  "mcpServers": {
    "calculators": {
      "url": "https://ampworth.com/mcp/calculators"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "calculators": {
      "type": "http",
      "url": "https://ampworth.com/mcp/calculators"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://ampworth.com/mcp/calculators

Tools 12 found in our last check

  • connection_route

    Work out which ENA connection procedure a domestic installation of solar panels, batteries or both falls under: connect first and notify the distribution network operator within 28 days, or apply and wait for approval before anything is connected. The rules are the ENA's enginee…

  • heat_pump_noise

    Calculate the sound pressure level an air source heat pump produces at an assessment position, and whether it meets the 37 dB(A) permitted development noise limit, using the method in MCS 020. The formula is Lp = Lw + 10 log(Q / 4.pi.r^2) - Ab. Lw is the A-weighted sound POWER l…

  • heat_pump_running_cost

    Compare what a household spends heating on its current fuel with what the same heat would cost from a heat pump. The heat demand is worked out from the household's own metered fuel use, not from a model, because a year of bills describes a particular house far better than any es…

  • heat_pump_size

    Estimate the heat pump a UK house needs, and what it would cost to run against the fuel it burns now. IMPORTANT: MIS 3005-D requires a heat pump to be sized from a room-by-room heat loss calculation to BS EN 12831, and nothing here replaces that. Say so whenever you report a res…

  • hot_water_cylinder

    Work out the daily hot water demand of a dwelling and the size of cylinder a heat pump needs, using the formula in MIS 3005-D 3.5.2 and the BS 6700 guidance reproduced in MGD 007. The demand is 45 litres a day for each of N, where N is the greater of the number of bedrooms plus…

  • list_calculators

    Lists every calculator on this server, with the standard behind it and whether it is the whole-system sizing calculator or one of the single-method ones, plus the reference data a caller needs to build a valid request: the compass directions and their orientations, the shading d…

  • radiator_flow_temperature

    Work out the flow temperature a heat pump must produce to heat a room through a given radiator, and the resulting MCS Heat Emitter Guide star rating, following section 4 of MGD 007. This is the calculation that decides whether a heat pump will be cheap or expensive to run. A hea…

  • room_heat_loss

    Calculate the design heat loss of a single room in watts, following BS EN 12831 as MIS 3005-D applies it. This is the figure a heat pump is sized from and the figure the radiator in that room must be able to deliver. BS EN 12831 is a room-by-room method. Run this once for each h…

  • solar_pv_output

    Estimate the annual AC electricity output of a UK solar photovoltaic system, in kWh, using the standard estimation method that MIS 3002 requires every MCS certified installer to use. The method is: annual output = kWp x Kk x SF, where Kk is read from the MCS irradiance dataset f…

  • solar_pv_self_consumption

    Estimate what proportion of a domestic solar PV system's annual output is consumed in the house and what proportion is exported, using the lookup tables in MGD 003. The tables are not a model. They come from half-hourly monitoring of real British households by Loughborough Unive…

  • solar_pv_shading

    Convert a completed MCS sunpath shading assessment into a shade factor, using the procedure in MGD 005. The MCS sunpath chart is divided into 84 segments, each worth one per cent of the year's useful irradiance. An assessor stands at the middle of where the array will go, plots…

  • solar_pv_system_size

    Work out the solar PV system a UK home needs: the capacity in kWp, the number of panels, the battery to go with it, and what it would do to the electricity bill. This runs the MCS arithmetic backwards. The other solar calculators here each answer one question about a system some…

Details

Endpointhttps://ampworth.com/mcp/calculators (Streamable HTTP)
First published16 Oct 2026
Last updated16 Oct 2026
Registry namecom.ampworth/calculators

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