Skip to content 
Achieve Maximum Accuracy in
Emissions Calculations with Lythouse
Leverage Advanced Methodologies and Tailored Rules for Precise CO2e Estimates
Lythouse utilizes a multi-faceted approach to provide accurate CO2e estimates for your organization. We combine the
strengths of various emission calculation techniques
Supplier-Declared Product Emission Factors
Lythouse collaborates with
suppliers to obtain detailed
emissions data for individual
products or services, ensuring the
highest accuracy in tracking
emissions.
Activity-Based Emission Factors
For available specific data like
energy consumption, fuel usage,
or transportation activity,
Lythouse employs detailed activity
data for more accurate emissions
estimates.
Spend-Based Emission Factors
When specific data is limited,
Lythouse estimates emissions
based on financial expenditure,
using average emission factors for
different commodities and
sectors.
Most Accurate
Most Approximate
Cutting-Edge Emission Calculation Techniques
Customize and Prioritize Emission Factor Rules
Lythouse ensures precise Scope 1, 2, and 3 emissions calculations using GHG Protocol standards, automatically selecting the most accurate methods further allowing customization of emission factor rules to suit specific operational needs.
AI-Driven Methodology Selection
Lythouse assesses your available data and automatically uses the most accurate GHG Protocol recommended method.
User-Defined Emission Factor rules
Lets users apply tailored rules to their chosen emission factor datasets, suitable for their regional and operational needs.
Prioritize User-Defined Rules
Lets users prioritize emission factor rules to overwrite automatic matching, ensuring calculations match their specific
context.
Example: WHEN item = Laptop, Emission Factor = 300 kgCO2/unit – overwriting all the routine process of emission factor matching.
Extensive Emission Factors Library
Lythouse offers access to over 72,000 emission factors from 35+ reputable sources, including EPA, EXIOBASE, and IEA, covering 300+ regions and 16,000 activities worldwide through our partnership with Climatiq.
Sector-Specific EFs
Lythouse enhances accuracy
with sector-specific EFs,
covering Transport (GLEC),
Manufacturing (CBAM),
Energy (IEA), and more
Vetted for Accuracy
All emission factors are
rigorously vetted and audited
by environmental scientists
to ensure data integrity and
reliability.
Regular Updates
Stay updated with emission
factors, which are refreshed
monthly to incorporate the
latest data and
methodologies.
methodologies.
Rich Metadata
Each EF includes detailed
metadata like sector, validity
year, source, CO2e calculation
method, and region, providing
comprehensive insights.
Support for Supplier Emission Intensity
Integrates supplier emission intensity data for accurate Scope 3 emissions, ensuring a precise total carbon footprint for organizations with significant supply chain dependencies
Enhance CO2e Accuracy with Custom Databases
Imports data from various sources, including proprietary datasets and regional emission factors, to enhance
the accuracy of your CO2e
estimates
estimates
Industry-Tailored Emission Calculation Methods
Coverage of 10+ Frameworks: Lythouse ensures compliance with over 10 global ESG frameworks, including CSRD, GRI, TCFD, SASB, CDP, SEC, and more. Our platform supports comprehensive CSRD disclosures, encompassing over 1200 data points.
Adapt to Evolving Frameworks: Designed to quickly adapt to new and evolving ESG reporting frameworks. Lythouse can incorporate new frameworks rapidly, ensuring up-to-date reporting with the latest regulatory requirements.
Lythouse leverages Merlin AI to perform detailed gap analysis and data population. Our AI scans your data, detects missing information, and automatically populates it using internal sources and uploaded documents on the platform ensuring precise, comprehensive, and compliant ESG reports with minimal manual effort.
Enhanced Accuracy: Merlin AI improves the accuracy and efficiency of your ESG reporting. Automated data population reduces manual effort and ensures comprehensive and compliant reports.
Utility
Lythouse covers emission computation from electricity production and consumption to measure the
environmental impact of electricity use accurately. Depending on the amount of information available, both
location-based and market-based computation methods are used for improved accuracy.
Formula: Scope 2 Emissions=∑(Activity Data×Emission Factor)
Location-Based Method
Data Fields Used:
- Electricity consumption (kWh)
- Regional electricity grid
Emission Factors Considered:
- Regional average emission factors reflecting the grid’s energy mix
Market-Based Method
Data Fields Used:
- Electricity consumption (kWh)
- Additional details about power purchase such as contracts/energy certificates (RECs, PPEs) or Supplier-specific emission factors
Emission Factors Considered:
- Emission factors specific to the energy supplier, reflecting the actual energy mix purchased by the organization
Energy and Fuel
Lythouse integrates detailed energy consumption data and uses AI to accurately map relevant emission factors, considering energy source variability and regional differences.
Formula: CO2e emissions=∑(Energy or Fuel Consumption×Emission Factor)
Data Fields Used
Type and amount of energy or fuel consumed
Source of energy or fuel
Emission Factors Considered
Emission factors for different types of energy and
fuel from sources like IEA and EIA
Purchased Goods and Services
Lythouse applies over 20 years of expertise in procurement spend classification and GenAI to accurately classify spends into relevant taxonomy and then find the most relevant emission factors.
Formula: CO2e emissions=∑(Amount Spent or Quantity Purchased×Emission Factor)
Data Fields Used
- Amount spent or quantity of goods/services
purchased - Type of goods or services
Emission Factors Considered
- Product/Service-based Emission Factors or
Spend-based Emission Factors specific sector
or industry of goods or service such as such as
EPA, EXIOBASE.
Use of Sold Products
Lythouse uses flexible data models and collaborates with industry experts to tailor emissions calculations
for different sectors.
Formula:: CO2e emissions=∑(Quantity of Products Sold×Emission Factor per Use Cycle x Avg. Number of lifetime uses)
Data Fields Used
- Quantity of products sold
- Average usage cycle of products
- Energy Consumed Directly / Indirectly by the
product – as per own records or industry
averages
Emission Factors Considered
- Emission factors corresponding to the Fuel, Electricity or Refrigerant requirements needed by the product during it use stage.
Travel
Lythouse integrates detailed travel data, including mode of transport, type of vehicle, travel class, fuel consumption and distance, using AI algorithms to apply accurate emission factors.
Formula:: CO2e emissions=∑(Fuel Consumed x Emission Factor) OR ∑(Distance Traveled × Emission Factor) OR
∑(Spend x Emission Factor)
Data Fields Used
- Mode of transport, Type of Vehicle, Others details of vehicle, Fuel Consumed, Distance traveled, Spend
Emission Factors Considered
- Emission factors specific to travel from sources like DEFRA and EPA.
Transportation (Upstream and Downstream)
Lythouse extracts and integrates data from transport management systems, ensuring accurate mapping of relevant emission factors using AI.
Formula:: CO2e emissions=∑ (Fuel Consumed x Emission Factor) OR ∑(Distance Traveled by a type of vehicle
×Weight of Goods×Emission Factor)
Data Fields Used
- Fuel Consumed
- Type of Transportation Vehicle
- Distance traveled
- Weight of goods transported
Emission Factors Considered
- Emission factors specific to Transportation
from sources like EPA and DEFRA
