NOTE 3 – RESTRICTED CASH

The Company maintains cash balances that are restricted under Letter of Credit covenants for State and Federal well bonding requirements. These bonds renew on an annual basis. Restricted cash balances and explanations of the nature of the restrictions are summarized as follows:

The well bonding requirements ensure that the Company has sufficient financial resources to construct, operate and maintain geothermal wells while safeguarding subsurface, surface and atmospheric resources from unreasonable degradation, and to protect ground water aquifers and surface water sources from contamination. Other future costs of environmental remediation cannot be reasonably estimated and have not been recorded. The construction bond is required by the Loan Guarantee Agreement with the Department of Energy at Neal Hot Springs and will convert to a plant reserve fund upon completion of the plant facility.