Here are all the costs of the project.
A low interest loan from VSECU covered the cost of weatherization and the heat pump. The rest of the cost was covered out of pocket by the owners.
Here are the annual energy costs for the house through this period. Note that the projected solar generation has been back-dated to 2019 for illustration purposes. Solar generation will in fact begin in January 2021.
As you can see from the last line of the table, the house has roughly the same annual expense after the project as before. Before, the expense was largely fuel oil; after, it is mostly loan service. After the loan is paid, the cost will drop to a fraction of what it would have been.
As you can see from the last line of the table, the house has roughly the same annual expense after the project as before. Before, the expense was largely fuel oil; after, it is mostly loan service. After the loan is paid, the cost will drop to a fraction of what it would have been.