# Energy Calculator MCP MCP > Appliance Energy Calculator estimates how much electricity your household appliances use and what that costs you monthly. Input wattage and usage hours, then get a breakdown of daily consumption in kWh or calculate full annual expenses based on local tariffs. ## Overview - **Category:** finance - **Price:** Free - **Tags:** electricity, kwh, cost-calculator, energy-efficiency, household-management ## Description Figuring out which devices are wasting energy is tricky. You need to know more than just the wattage; you need to see the total impact over time. This MCP lets your agent do all that heavy math for you. Instead of opening three different spreadsheets, you feed in an appliance's power rating and how often it runs. The system calculates everything from daily usage totals to full monthly bills based on your specific electricity rate. It gives a clear financial picture so you can prioritize upgrades. If you need access to this kind of utility calculator alongside other services, check out the whole catalog at Vinkius. ## Tools ### get_appliance_impact_summary Creates one complete report detailing an appliance's power rating, usage hours, and cost impact. ### calculate_daily_consumption Calculates the total energy used by a specific device over twenty-four hours in kWh. ### calculate_monthly_expenses Determines how much money an appliance will cost to run for a month based on its daily usage and your tariff rate. ## Prompt Examples **Prompt:** ``` How much energy does a 1500W heater use in 5 hours per day? ``` **Response:** ``` A 1500W heater used for 5 hours daily consumes 7.5 kWh per day. ``` **Prompt:** ``` Calculate the monthly cost for 10kWh daily usage at $0.15 per kWh. ``` **Response:** ``` At a tariff of $0.15/kWh, 10kWh of daily usage results in a monthly cost of $45.00 (assuming a 30-day month). ``` **Prompt:** ``` Give me a summary for a 60W bulb used 12 hours a day with a $0.20 tariff. ``` **Response:** ``` The bulb uses 0.72 kWh daily, which totals approximately 21.6 kWh per month and costs $4.32 monthly. ``` ## Capabilities ### Calculate daily energy usage Determine the total kilowatt-hour (kWh) consumption for a specific appliance over one day. ### Estimate monthly electricity costs Figure out the dollar cost of running an appliance by inputting its total energy usage and local tariff rates. ### Generate full impact reports Get a single summary that combines power rating, run hours, daily consumption, and estimated overall costs for easy comparison. ## Use Cases ### Evaluating HVAC system upgrades A property manager needs to know if replacing an old furnace will save money. They use `get_appliance_impact_summary` on the current unit and then run a comparison summary for a modern, efficient model to show the exact monthly savings amount. ### Buying new kitchen appliances A homeowner is buying a new refrigerator. They use `calculate_daily_consumption` with the fridge’s specs and their expected usage hours to get a daily kWh number, which they then plug into `calculate_monthly_expenses` to see the total annual bill. ### Auditing electrical panel efficiency An engineer needs quick data points on various items. They use `calculate_daily_consumption` repeatedly across different devices, quickly gathering daily kWh metrics that they compile into a master report. ## Benefits - Find out exactly how much energy a device eats daily using `calculate_daily_consumption`. No more vague estimates; you get concrete kWh numbers for your planning. - Determine total annual costs instantly. Use `calculate_monthly_expenses` to project the full financial impact of high-use appliances before they break down. - Stop juggling multiple reports. The `get_appliance_impact_summary` tool wraps up everything—the power rating, usage time, and cost—into one easy-to-read breakdown. - Prioritize upgrades accurately. By calculating the true financial drain of specific appliances, you know where to spend your money first. - Compare devices side-by-side. Run a summary for several items using this MCP to see which ones genuinely waste electricity and cash. ## How It Works The bottom line is you get one clear number: the true cost of running any appliance in your home. 1. Input the appliance's power rating (watts) and how many hours you plan to use it. 2. The MCP runs calculations, first determining daily consumption in kWh, then projecting that usage over a month. 3. You receive a summary report detailing both the total energy used (kWh) and the resulting dollar expense based on your current electricity tariff. ## Frequently Asked Questions **How do I use calculate_daily_consumption with the Appliance Energy Calculator MCP?** You give the tool the appliance's wattage and how many hours you plan to run it. It returns the exact kWh usage for a 24-hour period, which is the starting point for all other calculations. **What does get_appliance_impact_summary provide?** It gives one comprehensive summary that pulls together everything: the appliance's power rating, your usage hours, and both the daily kWh number and the estimated monthly cost. **Can I use calculate_monthly_expenses to project costs for a whole house?** You can run it multiple times. First, you must get individual kWh figures using `calculate_daily_consumption` or `get_appliance_impact_summary`, and then feed those totals into this tool. **Do I need to know my tariff rate for the calculator?** Yes, you absolutely do. The MCP requires your electricity cost per kWh (the tariff) to calculate the final dollar amount in `calculate_monthly_expenses`. **What happens if the inputs for calculate_daily_consumption are invalid?** It returns a clear error message stating exactly which parameter needs fixing. The response will specify whether the power rating or usage hours were improperly formatted. **How can I use get_appliance_impact_summary for multiple appliances?** The tool processes one appliance at a time; you must call get_appliance_impact_summary sequentially for each device. Your agent handles this by iterating through your list of items. **When using calculate_daily_consumption, what are the accepted units of measurement?** The tool requires power to be submitted in Watts (W) and time must be specified in hours. Always verify that you're providing consistent unit types. **What compatibility is needed for calculate_monthly_expenses with my agent?** You only need an MCP-compatible client connected through Vinkius. This means any modern AI agent can access and run this function call successfully. **How do I calculate daily energy usage?** You can use the `calculate_daily_consumption` tool by providing the appliance's power rating in Watts and the number of hours it is used per day. **Can I estimate monthly electricity costs?** Yes, the `calculate_monthly_expenses` tool allows you to input daily kWh usage and your local energy tariff to find the total cost for a specific number of days. **What information is needed for a full summary?** The `get_appliance_impact_summary` tool requires the power rating in Watts, hours used per day, energy tariff, and optionally the number of days in the month.