Calculate Your Residential Electric Baseline Allowance
This calculator shows an estimate of your baseline allowance and the amount you need to use more than to be charged for High Usage. Please refer to your bill for actual baseline allowance and High Usage amounts. This calculator uses a value of 30 days as the total of days in your bill cycle which changes monthly.
Factors Affecting Your Bill
What are the factors affecting your baseline?
Every customer is allotted a daily baseline allowance. Month-to-month your baseline allowance can change due to differences in the number of days in your billing cycle. Your daily baseline allowance is determined by the following:
Where You Live
SDG&E’s service territory is divided into four different climate zones: (1) Coastal, (2) Inland, (3) Mountain, and (4) Desert. Each climate zone is assigned different daily baseline allowances.
Please see below for climate zone map.
The Time Of Year
The daily baseline allowance varies by season. For residential customers, the summer season is defined as May 1 through October 31 and the winter season is defined as November 1 through April 30.
The Type Of Service You Have
Customers that receive both electric and natural gas service, will have different baseline allowances (basic service baseline allowances) than customers with all electric service (all electric baseline allowances).
You can experiment with the calculator by changing the factors that affect the costs you pay for electricity usage. You will see how these changes affect the baseline allowance number and subsequent energy use (which is divided up into percentages of your baseline allowance or tiered usage.)
Summer And Winter Seasonal Rates
A change in season (summer and winter) will affect results for the months of May and October because part of your energy usage may cross over into both seasons.
Calculate Your Baseline Allowance and Monthly Electric Usage
Your Baseline Allowance
High Usage Charge
If you use more than four times the amount of your Baseline Allowance, you’ll be charged for High Usage.
Baseline Allowance x 4 = High Usage Charge
Month to month your allotted baseline allowance can change due to differences in the number of days in your billing cycle.
Use of the Baseline Calculator is for informational purposes only. SDG&E makes no warranty regarding the representations found in the results. Information results of this calculator are an estimate only based on data entered. SDG&E does not guarantee results from recommendations.