Electricity markets across Europe have changed significantly over the last years as market liberalization, changing power generation dynamics, privatization and structural change have replaced the state in which European energy was before. The European Commission expects that the internal European Market should run as one market without restrictions on the individual borders. The change continues with ongoing moves for further market liberalization and competition with a number of major European energy businesses. To be ready for such alternation, businesses need to redesign their existing business processes using ICT solutions as an important enabling factor. Current article analyzes the main challenges of implementation phase of Asset Management software. The challenges are analyzed in example of Estonian power utility Eesti Energia locating in Republic of Estonia, which Distribution and Transmission Network companies are currently implementing Asset Management software within project called VHT. The project's 1 st phase go live date is the 1 st of June, 2009.